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TANGEDCO 2X660 MW ENNORE SEZ STPP AT ASH DYKE OF NCTPS, CHENNAI TECHNICAL SPECIFICATION FOR DEBRIS FILTER (DF). Specification No. : PE-TS- 412-165-N001 (REV. 0) VOLUME -IIB BHARAT HEAVY ELECTRICALS LIMITED POWER SECTOR PROJECT ENGINEERING MANAGEMENT PPEI BLDG., SEC-16A, PLOT NO. 25 NOIDA – 201301 (UP)

TANGEDCO - Bharat Heavy Electricals · 2015-07-17 · Seismic Zone III as per IS:1893-2002 1.5 Access to Site Site is well connected to all weather road from Pattamandri on the Thiruvottiyur

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Page 1: TANGEDCO - Bharat Heavy Electricals · 2015-07-17 · Seismic Zone III as per IS:1893-2002 1.5 Access to Site Site is well connected to all weather road from Pattamandri on the Thiruvottiyur

TANGEDCO2X660 MW ENNORE SEZ STPP

AT ASH DYKE OF NCTPS, CHENNAI

TECHNICAL SPECIFICATION

FOR DEBRIS FILTER (DF).

Specification No. : PE-TS- 412-165-N001 (REV. 0)

VOLUME -IIB

BHARAT HEAVY ELECTRICALS LIMITED POWER SECTOR

PROJECT ENGINEERING MANAGEMENT PPEI BLDG., SEC-16A, PLOT NO. 25

NOIDA – 201301 (UP)

Page 2: TANGEDCO - Bharat Heavy Electricals · 2015-07-17 · Seismic Zone III as per IS:1893-2002 1.5 Access to Site Site is well connected to all weather road from Pattamandri on the Thiruvottiyur

TITLE : TECHNICAL SPECIFICATION SPEC. NO. PE-TS- 412-165-N001FOR VOLUME : II B

DEBRIS FILTER (DF) REV. NO. 0 DATE :15.06.15

PREAMBLE SHEET 1 OF 2

1.0 The tender document contains three (3) volumes. The bidder shall meet the requirements of all the three volumes.

1.1 Volume -I CONDITIONS OF CONTRACT This consists of four parts as below :

Volume - I A : This part contains instructions to bidders for making bids to BHEL.

Volume - I B : This part contains general commercial conditions of the tender and include provision that vendor shall be responsible for the quality of item supplied by their sub-vendors.

Volume - I C : This part contains special conditions of contract.

Volume - I D : This part contains commercial conditions for erection and commissioning site work, as applicable.

1.2 Volume - II TECHNICAL SPECIFICATIONS Technical requirements are stipulated in Volume II which comprises of :

Volume - II A : General Technical Conditions

Volume - II B : Technical specification including drawings, if any 1.2.1 Volume - II B : This volume is sub-divided into following sections:

Section - A : This section outlines the scope of enquiry.

Section - B : This section provides “Project Information”

Section - C : This section indicates technical requirements specific to the contract, not covered in Section-D.

Section - D :

This section comprises of standard technical specifications of equipments complete with data sheet A, B & C. Data sheet-A specifies data and other requirements pertaining to the equipment. Data sheet - B specifies data to be filled by the bidder (Data Sheet B is contained in Volume - III) Data sheet - C indicates data documents to be furnished after the award of contract as per agreed schedule by the vendor (as applicable).

Page 3: TANGEDCO - Bharat Heavy Electricals · 2015-07-17 · Seismic Zone III as per IS:1893-2002 1.5 Access to Site Site is well connected to all weather road from Pattamandri on the Thiruvottiyur

TITLE : TECHNICAL SPECIFICATION SPEC. NO. PE-TS- 412-165-N001FOR VOLUME : II B

DEBRIS FILTER (DF) REV. NO. 0 DATE :15.06.15

PREAMBLE SHEET 2 OF 2

1.2.2 Volume - III TECHNICAL SCHEDULES 1.0 This volume contains technical schedules and Data Sheets - B, which are to be

duly filled by the bidder and the same shall be furnished with the technical bid as per instructions given in Document No.PES-100-901 in Volume-III.

2.0 The requirements mentioned in Section C/Data Sheets-A of Section-D shall

prevail and govern in case of conflict between the same and the corresponding requirements mentioned in the descriptive portion in Section -D.

Page 4: TANGEDCO - Bharat Heavy Electricals · 2015-07-17 · Seismic Zone III as per IS:1893-2002 1.5 Access to Site Site is well connected to all weather road from Pattamandri on the Thiruvottiyur

TITLE : TECHNICAL SPECIFICATION SPEC. NO. PE-TS-412-165-N001 FOR VOLUME : II B

DEBRIS FILTER (DF) SECTION : A REV. NO. 0 DATE : 15.06.2015 SHEET 1 of 1

INDEX

SECTION TITLE A SCOPE OF ENQUIRY B PROJECT INFORMATION C SPECIFIC REQUIREMENTS C1 SPECIFIC TECHNICAL REQUIREMENTS FOR DEBRIS FILTER . C2 SPECIFIC TECHNICAL REQUIREMENTS (ELECTRICAL) C3 SPECIFIC TECHNICAL REQUIREMENTS (C&I)

D STANDARD TECH. SPECIFICATIONS D1 DEBRIS FILTER

� STANDARD TECHNICAL SPEC.NO. PE-TS-999-165-N001 � DATA SHEET-A � DATA SHEET-C � QUALITY PLAN

D2 ELECTRICAL SYSTEMS D3 CONTROL & INSTRUMENTATION SYSTEMS

Page 5: TANGEDCO - Bharat Heavy Electricals · 2015-07-17 · Seismic Zone III as per IS:1893-2002 1.5 Access to Site Site is well connected to all weather road from Pattamandri on the Thiruvottiyur

TITLE : TECHNICAL SPECIFICATION SPEC. NO. PE-TS-412-165-N001 FOR VOLUME : II B

DEBRIS FILTER (DF) SECTION : A REV. NO. 0 DATE : 15.06.2015 SHEET 1 of 1

SECTION - A SCOPE OF ENQUIRY

Page 6: TANGEDCO - Bharat Heavy Electricals · 2015-07-17 · Seismic Zone III as per IS:1893-2002 1.5 Access to Site Site is well connected to all weather road from Pattamandri on the Thiruvottiyur

TITLE : TECHNICAL SPECIFICATION SPEC. NO. PE-TS-412-165-N001 FOR VOLUME : II B

DEBRIS FILTER (DF) SECTION : A REV. NO. 0 DATE : 15.06.15

SHEET 1 of 1

1.00.0 SCOPE

This enquiry covers the design, manufacture, assembly, inspection, testing at manufacturer's and/or his sub-contractors works properly packed for delivery of the items and installation checks, commissioning, trial runs & PG Testing at site as follows:

1.01.0 Debris FIlters :

DEBRIS FILTER (DF) complete with all accessories as per the requirements specified in different sections of this specification for:

� 2X660 MW ENNORE SEZ STPP

The bidder’s scope also includes installation checks, commissioning, trial runs & PG Testing at site of DF.

1.01.0 The bids shall be evaluated as per NIT.

2.00.00 GENERAL TECHNICAL INSTRUCTIONS:

2.01.00 It is not the intent to specify herein all the details of design and manufacture. However the equipment shall conform in all respects to high standard of design, engineering and workmanship, and shall be capable of performing the required duties in a manner acceptable to Engineer/ Owner, who will interpret the meaning of drawing and specifications, and shall be entitled to reject any component or material, which in his judgement is not in full accordance herewith.

2.0.2.00 The omission of specific reference to any component/ accessory necessary for the

proper performance of the equipment’s shall not relieve the bidder of the responsibility of providing such facilities to complete the supply of the equipment’s at quoted prices.

2.03.00 In case of any deviation from this Technical specification (Vol. IIB) and General

Technical Conditions (Vol. IIC), the same shall be indicated in the schedule of deviations enclosed in Volume-III, Part-A. In the absence of duly filled schedules it will be assumed that the bid strictly conforms to the specification.

2.04.00 BHEL's/ Customer’s representatives shall be given full access to the shop in which the

equipment’s are being manufactured or tested and all test records shall be made available to him.

2.05.00 The equipment’s covered under this specification shall not be despatched unless the

same have been finally inspected, accepted and shipping release issued by BHEL/ Customer

2.06.00 Un-priced copy of price bid shall be furnished along with the technical bid.

Page 7: TANGEDCO - Bharat Heavy Electricals · 2015-07-17 · Seismic Zone III as per IS:1893-2002 1.5 Access to Site Site is well connected to all weather road from Pattamandri on the Thiruvottiyur

TITLE : TECHNICAL SPECIFICATION SPEC. NO. PE-TS- 412-165-N001 FOR VOLUME : II B

DEBRIS FILTER (DF) SECTION : C REV. NO. 0 DATE : 15.06.2015 SHEET 1 of 1

SECTION – B

PROJECT INFORMATION

Page 8: TANGEDCO - Bharat Heavy Electricals · 2015-07-17 · Seismic Zone III as per IS:1893-2002 1.5 Access to Site Site is well connected to all weather road from Pattamandri on the Thiruvottiyur

DESEIN Volume-II: General & Schedules General Background and Salient Features

2 x 660 MW Ennore SEZ Supercritical Thermal Power Project at Ash Dyke of NCTPS

Spec. No. CE/C/P&E/EE/E/OT.No.03 /2013-14

Vol. II: 1

SPECIFICATIONFOR

EPC CUM DEBT FINANCING CONTRACT

VOLUME II – GENERAL & SCHEDULES

CHAPTER 1

PROJECT SYNOPSIS

1.0 GENERAL BACKGROUND AND SALIENT FEATURES

1.1 Introduction Tamilnadu Generation and Distribution Corporation owns the proposed green-field 1320 MW (2 units of 660 MW each) Coal Based Thermal Power Station at Katupalli. This is an expansion of North Chennai Thermal Power Station (NCTPS) and located on some portion of the ashdyke of NCTPS.

1.2 Location The proposed site for main power plant is located near Ennore port (approx 5

kms). The nearest Railway station is at Athipattu Pudunagar (approx 5 kms)

All weather road from Pattamandri on the Thiruvottiyur-Ponneri district highway is the nearest road access. The nearest airport is at Chennai at a distance of 60 km.

1.3 Type of Plant The proposed 2x660 MW Super-Critical Power Project consists of coal fired steam generator connected to a reheat type steam turbine generator along with all the required auxiliaries. Circulating cooling water system is envisaged for condenser cooling.

The description and salient technical data of the Steam Generator, Steam Turbine Generator, Auxiliary systems, Electrical, Control & Instrumentation, Civil etc. are explained elsewhere in the specification:

1.4 PROJECT INFORMATION

Project Title : 2 x 660 MW Ennore SEZ Coal Based Supercritical Thermal Power Project at Ash Dyke of NCTPS

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DESEIN Volume-II: General & Schedules General Background and Salient Features

2 x 660 MW Ennore SEZ Supercritical Thermal Power Project at Ash Dyke of NCTPS

Spec. No. CE/C/P&E/EE/E/OT.No.03 /2013-14

Vol. II: 2

Owner : TAMIL NADU GENERATION AND DISTRIBUTION CORPORATION (TANGEDCO)

LOCATION

The site is located near Vayalur Village, Ennore

Latitude : 13017’ N to 130

Longitude : 80

18’ N 018’ E to 800

Distance from Chennai City : 35 km

19’ E

Nearest Airport is at Chennai at a

Distance of : 60 km Nearest Seaport is : Ennore Nearest Railway Station is : Athipattu Pudunagar (approx 5 kms) Meteorological Condition

Climate : Tropical ,very dry and hot summer, dry and cold winter and good rain-fall in monsoon accompanied with strong wind.

Climatological data : Ambient temp. (0

Annual Maximum Mean Temp

C)

41.5(0

C)

Annual Minimum Mean Temp 24(0

C)

Design Ambient temperature 35(0

C)

Relative Humidity Maximum 100% Minimum 36% Design 75%

Annual Rainfall

Maximum 2540 mm

Average 1600 mm

Minimum 1175 mm

Prevailing Wind Direction

Nov to Jan – From NW & NE

Page 10: TANGEDCO - Bharat Heavy Electricals · 2015-07-17 · Seismic Zone III as per IS:1893-2002 1.5 Access to Site Site is well connected to all weather road from Pattamandri on the Thiruvottiyur

DESEIN Volume-II: General & Schedules General Background and Salient Features

2 x 660 MW Ennore SEZ Supercritical Thermal Power Project at Ash Dyke of NCTPS

Spec. No. CE/C/P&E/EE/E/OT.No.03 /2013-14

Vol. II: 3

Feb to Mar – From East & SE

Apr to May – From South & SE

June – From SW

July to Aug – From NW

Sept to Oct – From SE & SW

Wind Speed 11.8 kmph (avg)

50 kmph (max)

Seismic Zone III as per IS:1893-2002

1.5 Access to Site

Site is well connected to all weather road from Pattamandri on the Thiruvottiyur – Ponneri district highway. Site is located adjacent to the Chennai – Howrah broad gauge line and thus well connected by rail also.

1.6 Plant Rating, Capacity, Availability, PLF Each of the two units shall have a Turbine maximum continuous rating (TMCR) of 660 MW at generator terminals based on the following site conditions.

� Ambient air temperature � Condenser cooling water inlet temperature of 33°C and 9°C

temperature rise across the condenser. � Generator power factor of 0.85. � Fuel specification as given elsewhere. � Design temperature for electrical equipment is 50°C.

The VWO capacity of the steam turbine shall not be less than 105% of TMCR flow at rated parameters. Boiler maximum Continuous Rating (BMCR) will be established to match the steam flow at VWO conditions, but BMCR flow shall not less than 108% of TMCR flow. The capacity of the unit is selected so as to deliver the rated output even after ageing that will occur between overhauls, as a result of deposition of salts in turbine blades, wear and tear etc. The plant load factor (PLF) being considered is 85%.

1.7 Power Evacuation

Power will be evacuated from the proposed thermal power station at 400 KV voltage level through 400 KV transmission lines . The power evacuation lines would be double circuit 400 KV lines which will act as Line in & Line out circuit.

Page 11: TANGEDCO - Bharat Heavy Electricals · 2015-07-17 · Seismic Zone III as per IS:1893-2002 1.5 Access to Site Site is well connected to all weather road from Pattamandri on the Thiruvottiyur

DESEIN Volume-II: General & Schedules General Background and Salient Features

2 x 660 MW Ennore SEZ Supercritical Thermal Power Project at Ash Dyke of NCTPS

Spec. No. CE/C/P&E/EE/E/OT.No.03 /2013-14

Vol. II: 4

1.8 Site Selection The following factors which influence the project site selection have been found very favourable to establish and operate the project.

a. Availability of fuel. b. Existing power plant c. Availability of adequate cooling water. d. Availability of adequate land for locating the power plant with

approach roads. e. Suitability of land from topographical and geological aspects f. Proximity of National Highways, Ports & Transport of fuel &

heavy equipment. g. Facility for interconnection with transmission and distribution

system for evacuation of power. h. Environmental aspects.

Total land required for the project is 500 acres which is under the possession of TANGEDCO.

1.9 Fuel

1.9.1 Source of Fuel Domestic coal requirement for the power plant will be sourced from Kalinga block of Talcher coal fields, Mahanadi and IB valley coal fields in the state of Orissa. Coal will be transported by sea. The port of dispatch and port of receipt for domestic coal would be Paradip port and Ennore port respectively. Imported coal shall be sourced from foreign countries through sea to Ennore port. Coal can be transported from coal mines to Ennore port by sea and unloaded at proposed coal berth-III. Further the coal can be transported to the proposed power plant through pipe conveyor which shall have a system capacity of 2 x 2000TPH. The steam generator shall be designed for the following conditions :

� Best Coal – 100% Imported Coal � Design Coal – 70% Imported & 30% Domestic Coal � Worst Coal – 50% Imported & 50% Domestic Coal

The analysis of fuel is given below :

1.9.2 Coal Analysis:

Coal Quality Parameters

SL.NO DESCRIPTION DOMESTIC COAL IMPORTED COAL1. HIGHER HEATING 2800 (GCV as 6250 ( GCV Air

Page 12: TANGEDCO - Bharat Heavy Electricals · 2015-07-17 · Seismic Zone III as per IS:1893-2002 1.5 Access to Site Site is well connected to all weather road from Pattamandri on the Thiruvottiyur

DESEIN Volume-II: General & Schedules General Background and Salient Features

2 x 660 MW Ennore SEZ Supercritical Thermal Power Project at Ash Dyke of NCTPS

Spec. No. CE/C/P&E/EE/E/OT.No.03 /2013-14

Vol. II: 5

VALUE -As Fired basis given Kcal/kg

received basis) dried basis) 5642 (as received basis)

2. TOTAL MOISTURE % During rainy season 20% ( inherent + surface)

16.5%

3. HGI Abrasiveness expected YGP Shale and sand stone content Feed coal size

45 to 55 Average 52 50 to 70 mg/kg 20% max. upto 50 mm.

51

DOMESTIC COAL

Sr. No. Particulars Units ParametersA. Proximate Analysis 1. Moisture % 16.00 2. Volatile Matter % 19.00 3. Ash % 45.00 4. Fixed carbon % 20.00 Total % 100 B. ULTIMATE

ANALYSIS, % ( As received)

1. Carbon % 27.70 2. Hydrogen % 2.60 3. Nitrogen % 0.52 4. Oxygen % 7.26 5. Sulphur % 0.50 6. Ash % 45.00 7. Moisture % 16.00 8. Carbonates % 0.38 9. Phosphorous % 0.04 10. Others % - Total % 100.00 C. Ash fusion

temperature deg C

1. Initial deformation, IT deg C 1100 2. Spherical, ST deg C 1200 3. Hemispherical, HT deg C 1300 4. Fluid, FT deg C - D. Ash Analysis, % 1. Sio2 % 59.54 2. Al 2 O3 % 29.00 3. Fe2O3 % 6.42 4. CaO % 1.50 5. Na2O % 0.08

Page 13: TANGEDCO - Bharat Heavy Electricals · 2015-07-17 · Seismic Zone III as per IS:1893-2002 1.5 Access to Site Site is well connected to all weather road from Pattamandri on the Thiruvottiyur

DESEIN Volume-II: General & Schedules General Background and Salient Features

2 x 660 MW Ennore SEZ Supercritical Thermal Power Project at Ash Dyke of NCTPS

Spec. No. CE/C/P&E/EE/E/OT.No.03 /2013-14

Vol. II: 6

Sr. No. Particulars Units Parameters6. K2O % - 7. TiO2 % 1.60 8. SO3 % 0.25 9. P2O5 % 0.51 10. MgO % 0.50 11. Others % 0.60 12. Total 100.00 E Resistivity of fly ash

Ohm - cm 1.73x 10^12

IMPORTED COAL

Sr. No.

Particulars Units Parameters

A. Proximate Analysis(As received)

1. Moisture % 16.50 2. Volatile Matter % 36.45 3. Ash % 6.62 4. Fixed carbon % 40.43 5 Total % 100.00 B. ULTIMATE ANALYSIS,

% (As received)

1. Carbon % 60.12 2. Hydrogen % 4.38 3. Nitrogen % 1.48 4. Oxygen % 10.37 5. Sulphur % 0.53 6. Ash % 6.62 7. Moisture % 16.5 8. Carbonates % - 9. Phosphorous % - 10. Others % - Total % 100.00 C. Ash fusion

temperature deg C

1. Initial deformation, IT deg C 1230 2. Spherical, ST deg C 1270 3. Hemispherical, HT deg C 1320 4. Fluid, FT deg C - D. Ash Analysis, % 1. Sio2 % 36.00 2. Al 2 O3 % 13.90 3. Fe2O3 % 14.80 4. CaO % 12.70 5. Na2O % 0.70 6. K2O % 1.70 7. TiO2 % 0.80

Page 14: TANGEDCO - Bharat Heavy Electricals · 2015-07-17 · Seismic Zone III as per IS:1893-2002 1.5 Access to Site Site is well connected to all weather road from Pattamandri on the Thiruvottiyur

DESEIN Volume-II: General & Schedules General Background and Salient Features

2 x 660 MW Ennore SEZ Supercritical Thermal Power Project at Ash Dyke of NCTPS

Spec. No. CE/C/P&E/EE/E/OT.No.03 /2013-14

Vol. II: 7

Sr. No.

Particulars Units Parameters

8. SO3 % 10.60 9. P2O5 % 0.20 10. MgO % 8.60 11. Others % - 12. Total % 100.00

The plant should be suitable to accept imported coal sourced from any country. The limiting parameters of imported coal are furnished below :

S. No.

Particulars Unit Parameter

1 Total Moisture (ARB) % Up to 23 (Max) 2 Ash (ADB) % Up to 20 (Max) 3 Gross Calorific Value

(ADB) Kcal / Kg 5800 - 6500

4 Sulphur (ADB) % Up to 1 (Max) 5 Fixed Carbon (ADB) % 30-50 6 Volatile Matter (ADB) % 25-45 7 HGI 45-60 8 IDT (Under Reducing

Atmosphere) Deg C 1100-1250

9 Size mm < 50

Note: ADB stands for “As dried Basis” and ARB for “As Received Basis”

1.9.3 Specification of LDO Specific gravity @ 15° C 0.8348 Gross calorific value, Kcal/kg 10400 Pour point “°C” max. 12 Flash point “°C” min. 66 Sulphur % “T” max. 0.5 K. Viscosity in Centistokes @ 50° C max. 7.5 Ash by wt. % 0.01 Water & sediment Vol. Max. % 0.25 1.9.4 Specification of HFO Flash point “°C” min. 66

K. Viscosity in Centistokes @ 50° C max. 370

Page 15: TANGEDCO - Bharat Heavy Electricals · 2015-07-17 · Seismic Zone III as per IS:1893-2002 1.5 Access to Site Site is well connected to all weather road from Pattamandri on the Thiruvottiyur

DESEIN Volume-II: General & Schedules General Background and Salient Features

2 x 660 MW Ennore SEZ Supercritical Thermal Power Project at Ash Dyke of NCTPS

Spec. No. CE/C/P&E/EE/E/OT.No.03 /2013-14

Vol. II: 8

Ash by wt. % 0.1 Water content by volume % max 1 Sediment by weight % max 0.25 Total Sulphur by weight % max 4.5

Gross calorific value, Kcal/kg 10800

1.9.5 Fuel Linkage TANGEDCO has approached Ministry of Coal through Ministry of Power for the long term linkage of Coal from the coal sources of Talcher or Mahanadi in Orissa.

The coal requirement has been worked as under:-

Coal required at MCR per hr. (Blended) 872 tonnes

Per day 20928 tonnes.

Annual 6.5 MTPA for 85% PLF

1.9.6 Fuel Transportation The coal shall be received at Ennore port. The coal will be transported by pipe conveyor from coal berth 3 in Ennore Port and then through 2 x 2000 TPH pipe conveyor to the bunker directly or to stockyard.

1.10 Source Of Water

1.10.1 Source

The raw water intake shall be from the existing cooling water forebay of NCTPS PHASE-II.

1.10.2 Chemical analysis of Sea Water:

As given in Annexure-1, Volume III, Chapter- 3.

1.10.3 Requirement The requirement of water for the plant will be for meeting the requirement of make up for the re-circulating cooling water system, dust suppression system in coal handling plants, ash disposal system and the RO/ D.M. water plant which will be supplying the power cycle make up requirements, etc. In addition the water requirements will be for drinking and service purposes. Water requirement is estimated as approx. 15523 m3

/hr.

Page 16: TANGEDCO - Bharat Heavy Electricals · 2015-07-17 · Seismic Zone III as per IS:1893-2002 1.5 Access to Site Site is well connected to all weather road from Pattamandri on the Thiruvottiyur

DESEIN Volume-II: General & Schedules General Background and Salient Features

2 x 660 MW Ennore SEZ Supercritical Thermal Power Project at Ash Dyke of NCTPS

Spec. No. CE/C/P&E/EE/E/OT.No.03 /2013-14

Vol. II: 9

1.11 Source of Equipment The proposed plant will be supplied, erected and commissioned on Single EPC basis.

1.12 Power Evacuation Plan

Power will be evacuated from the proposed thermal power station at 400 KV voltage level through 400 KV transmission lines . The power evacuation lines would be double circuit 400 KV lines.

1.13 400 KV GIS Switchyard The 400 KV Switchyard is proposed to have one and a half bus arrangement and

will comprise following bays/circuits : � 2 – Generator transformer bays � 1– Start up transformer bay

� 4 – Line Bays � 2 – Bus VT’s � 2 – Bus Reactor Bays � 2 – Spare bay (Equipped) � 1 – Equipped bay for future GT � 2 – Equipped bays for future lines

The switchyard will be complete with galvanized steel structures, lightning surge

arrestors, OPGW Equipment, CTs, PTs of suitable VA burden and accuracy class as required for measurement protection and communication, insulators, bus-bars clamps & hard wares etc. The switchyard will be controlled by computerized control and data acquisition (SCADA) system.

1.14 Average Yearly Generation

The average yearly generation is calculated considering the following.

� The expected plant load factor is 85 %. With this PLF the average

yearly generation will be around 11914 Million units.

1.15 INFORMATION FOR ENVIRONMENTAL APPRAISAL

1.0 GENERAL INFORMATION ABOUT THE PROJECT

1.1 Name / Title of the Project : 2 x 660 MW Ennore SEZ Coal Based Supercritical Thermal Power Project at Ash Dyke of NCTPS

1.2 Name of Owner : Tamilnadu Generation and Distribution Corporation (TANGEDCO)

Page 17: TANGEDCO - Bharat Heavy Electricals · 2015-07-17 · Seismic Zone III as per IS:1893-2002 1.5 Access to Site Site is well connected to all weather road from Pattamandri on the Thiruvottiyur

DESEIN Volume-II: General & Schedules General Background and Salient Features

2 x 660 MW Ennore SEZ Supercritical Thermal Power Project at Ash Dyke of NCTPS

Spec. No. CE/C/P&E/EE/E/OT.No.03 /2013-14

Vol. II: 10

1.3 Location of the Project : Near Vayalur Village, Ennore,

Tamil Nadu

1.4 Site where proposed plant is to be located

: Ash dyke of NCTPS

1.5 Capacity of the project under consideration

: 2x 660MW

1.5.1 Govt. land / Private land / others

: TANGEDCO land

1.5.2 Topographical feature, demographic profile & physiography

: Site has differential levels and require filling to maintain the desried grade level of +10.00 meter above MSL

1.5.3 Nature of soil

: Clayey soil

1.5.4 Distance from the nearest town / city / major human settlements

: Chennai -35 km

1.5.5 Population to be displaced : Nil

1.5.6 Distance from water source : Approx. 5 km (from Cooling Water Forebay of NCTPS Stage II)

1.5.7 Area of forest land, if involved

: Nil

1.5.8 Distance of forest from the site

: N.A

1.6 Is this an extension? If so indicate capacity ofexisting plant

: No

1.7 What is the ultimate capacity envisaged

: 2x660 MW

2.0 GENERAL ENVIRONMENTAL INFORMATION

2.1 Area of the land proposed to be acquired

: Refer Plot Plan Land already acquired

i. Area required for plant

: 500 Acres

ii. Ash disposal : 100 % dry fly ash disposal and

Page 18: TANGEDCO - Bharat Heavy Electricals · 2015-07-17 · Seismic Zone III as per IS:1893-2002 1.5 Access to Site Site is well connected to all weather road from Pattamandri on the Thiruvottiyur

DESEIN Volume-II: General & Schedules General Background and Salient Features

2 x 660 MW Ennore SEZ Supercritical Thermal Power Project at Ash Dyke of NCTPS

Spec. No. CE/C/P&E/EE/E/OT.No.03 /2013-14

Vol. II: 11

100% wet bottom ash disposal is envisaged to existing ash pond.

iii. Plant facilities : The area is adequate for locating all the required systems for 2x660 MW.

2.2 Area proposed to be built-up

or developed

: Power station will be built-up in the proposed site as indicated in the plot plan.

2.3 Specify site characteristics River basin/ estuarine / coastal / others

: Site is close to Buckingham Canal

2.4 Is the site situated in the forest area? Give following details

: No

2.4.1 Area

: N.A

2.4.2 Type of forests : N.A

2.5 Is site situated near to the forests? Give the distance from the site.

: N.A.

2.6 Give a description of the flora within 25 km of your plant site under the following heads

:

a. Crops : b. Forest : Refer details in the specification

elsewhere. c. Grass land : d. Endangered species : e. Others (Specify)

:

2.6.2 Give details of the following features, if they exist, within a radius of 25 km of the proposed site?

:

i. Fisheries : ii. Sanctuary / natural

park biosphere reserve

:

iii. Lakes / ponds / reservoir

:

iv. Stream / river : Buckingham canal is close to the site

v. Estuary / sea : Bay of Bengal is 5 km from site

Page 19: TANGEDCO - Bharat Heavy Electricals · 2015-07-17 · Seismic Zone III as per IS:1893-2002 1.5 Access to Site Site is well connected to all weather road from Pattamandri on the Thiruvottiyur

DESEIN Volume-II: General & Schedules General Background and Salient Features

2 x 660 MW Ennore SEZ Supercritical Thermal Power Project at Ash Dyke of NCTPS

Spec. No. CE/C/P&E/EE/E/OT.No.03 /2013-14

Vol. II: 12

vi. Hills / mountains : vii. Historic / cultural /

tourist / archaeological scenic sites / defence installations

:

2.7

Human settlement

:

2.7.1

Total number of persons proposed to be employed

:

i. During construction

:

2500

ii. During operation

:

450(0.75person/MW) TANGEDCO

direct employees

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DESEIN Vol.III: Mechanical WorksSea Water Treatment Plant

2 x 660 MW Ennore SEZ Supercritical Thermal Power Project at Ash Dyke of NCTPS

Spec. No. CE/C/ P & E/ EE/ E/OT No.3 /2013-14Vol. III: 293

SEA WATER ANALYSIS

S.No. Parameter Unit Value (Range)1 Generala pH 7.94-8b Conductivity millisiemens/cm 43.8-44.1c Temperature Deg C 25-32d Turbidity NTU 20-40e Total Organic carbon

(total/ dissolved)PPM of C 2.4-2.84

f CO2 Mg/l <2g TDS Mg/l 39600-39740h BOD Mg/l 10-12i COD Mg/l 88-96j Oil & Grease Mg/l <10k Phenols Mg/l 0.08-0.09l Free Residual Chlorine Mg/l <0.22 Cationsa Cacium Mg/l 459-478b Magnesium Mg/l 1510-1516c Sodium Mg/l 10100-12000d Potassium Mg/l 358-450e Ammonia Mg/l 4.43-5.42f Stontium Mg/l 12.9-12.4g Barium Mg/l 1.55-1.58h Aluminum Total Mg/l 1-1.8i Aluminum Dossolved Mg/l 0.8-1.0j Manganese Total Micro g/l 0.2-0.6k Manganese Dissolved Micro g/l 0.1-0.2l Iron total Micro g/l 220-260

m Iron Dissolved Micro g/l Below detectable limit (detectable Limit : 10)

3 Anionsa Chloride Mg/l 18994-19194b Sulphate Mg/l 3710-3949c Nitrate Mg/l 136-152d Nitrite Mg/l 0.46-0.62e Bicarbonate Mg/l 144-148f Carbonate Mg/l Nilg Fluoride Mg/l 2.64-2.8h Boron Mg/l 0.14-0.17i Phosphate Micro g/l 240-380j Sulphide Micro g/l Below detectable limit

(detectable Limit : 100)k Silica Dissolved Micro g/l as SiO2 200-2504 Heavy MetalsA Arsenic Micro g/l Below detectable limit

(detectable Limit : 2)B Mercury Micro g/l Below detectable limit

(detectable Limit : 1)C Cadmium Micro g/l 120-130D Copper Micro g/l 200-220E Nickel Micro g/l 470-490F Molybdenum Micro g/l Below detectable limit

(detectable Limit : 100)

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DESEIN Vol.III: Mechanical WorksSea Water Treatment Plant

2 x 660 MW Ennore SEZ Supercritical Thermal Power Project at Ash Dyke of NCTPS

Spec. No. CE/C/ P & E/ EE/ E/OT No.3 /2013-14Vol. III: 294

5 Suspended Particle Size Range

A 10 micron & above Mg/l Below detectable limit(detectable Limit : 10)

B 5 micron to 10 micron Mg/l Below detectable limit (detectable Limit : 10)

C 1 micron to 5 micron Mg/l Below detectable limit (detectable Limit : 10)

D 0.1 micron to 1 micron Mg/l 20-266 Colloidal Particle Size

RangeA SDI (10 Minutes) - 10-20B SDI (5 Minutes) - 20-407 Density of sea water Kg/ cum 1030

Note : Unless otherwise indicated all elements shall be expressed in respective ionic form only.

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TITLE : TECHNICAL SPECIFICATION SPEC. NO. PE-TS- 412-165-N001 FOR VOLUME : II B

DEBRIS FILTER (DF) SECTION : C REV. NO. 0 DATE : 15.06.2015 SHEET 1 of 1

SECTION – C

SPECIFIC REQUIREMENTS

SECTION C1 : DEBRIS FILTER (MECHANICAL) SECTION C2 : ELECTRICAL SYSTEMS

SECTION C3 : C&I SYSTEMS

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TITLE : TECHNICAL SPECIFICATION SPEC. NO. PE-TS- 412-165-N001 FOR VOLUME : II B

DEBRIS FILTER (DF) SECTION : C REV. NO. 0 DATE : 15.06.2015 SHEET 1 of 1

SECTION C1

DEBRIS FILTER

(MECHANICAL DETAILS)

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16 TITLE : TECHNICAL SPECIFICATION SPEC. NO: PE-TS- 412-165-N001

FOR VOLUME : II B SECTION: C1

DEBRIS FILTER(DF) REV. NO. 0 DATE : 15.06.2015

SHEET 1 OF 9

1.0 GENERAL

The Debris Filter complete with all accessories shall conform to the standard technical specifications (Section-D) and Data Sheet-A enclosed herewith. In addition the requirements of this shall also be complied with. However, wherever the details given in Section-D and Data Sheet-A are different, the requirements of Data Sheet-A shall prevail. Similarly in the event of contradictions between Section-C & Section-D/ Data Sheet-A, Section-C shall prevail. Section C consists of 3 parts viz. Sec. C1, C2 and C3 for Mechanical, Electrical and C&I respectively, the requirements of all 3 sections shall be complied with.

2.0 DESCRIPTION OF EQUIPMENTS :

2.1 Debris Filter (DF) :

The Debris Filter where specified shall be installed on each CW inlet line to condenser to arrest floating matter and prevent clogging of Condenser Tubes. The condenser of each unit shall have two inlet CW lines, the debris filters shall be installed at upstream of COLTCS ball injection. The water analysis is attached as annexure-A with project information in section B.

3.0 SCOPE OF SUPPLY UNDER THE SPECIFICATION IN THE BIDDER’S SCOPE FOR

DEBRIS FILTER. 3.1 The scope of supply for Debris Filter covered under this specification is as under.

The size, MOC’s and other particulars of the equipments for projects are detailed in Data Sheet A annexed with Section – D of the specification.

SL.NO. PROJECT DEBRIS FILTER 1. 2X660 MW ENNORE SEZ STPP

AT ASH DYKE OF NCTPS, CHENNAI

2 SETS PER UNIT viz. TOTAL 4 SETS FOR BOTH UNIT.

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16 TITLE : TECHNICAL SPECIFICATION SPEC. NO: PE-TS- 412-165-N001

FOR VOLUME : II B SECTION: C1

DEBRIS FILTER(DF) REV. NO. 0 DATE : 15.06.2015

SHEET 2 OF 9

3.2 SCOPE OF SUPPLY OF DEBRIS FILTER INCLUDED IN THE BIDDER’S SCOPE :

3.2.1 Each set of Debris Filter (DF) shall comprise of following :

a) Flushing pump with drive Motor (if required) - 1 No.

b) Complete Interconnecting (As Applicable) & Debris disposal Pipe work, including flanges/counter flanges for pipes, bends, fittings, distributors, nozzles and support installation materials shall be in Purchaser’s scope. However, valves along with its Flanges/Counter Flanges/Gaskets/Nuts & Bolts shall be in Bidder’s Scope. Isometric Drawing along with BOM for interconnection piping, flanges/counter flanges for pipes, bends, fittings, distributors, nozzles and support installation materials inline with approved Installation Drawing to be submitted by the Bidder within 4 weeks after approval of the Installation Plan. Minimum Pipe Size to be considered by the Bidder for all interconnecting (as applicable) & Debris disposal piping shall be 200 Nb.

c) Filter body/ housing Vent and drain connections along with their isolating valves.

d) Length of Debris Filter, Scope of Counter Flange, Nuts and bolts shall be as per Annexure-I of section C1.

Thickness of body flange and counter flange shall be as per Drg no PE-DG-999-141-MO17 enclosed at enclosures at Annexure-II.

e) Differential pressure measuring system for ball separator. DP measuring system shall comprise of 2 nos. DPT +1 no. DPG for each DF. Instrument shall be with Remote seal arrangement. Stubs for DPT and DPG shall be independent.

f) Supporting arrangement complete with saddle support (as required as per

layout), foundation plates, anchor bolts, nuts, sleeves, inserts, all installation materials, fixing bolts, clamps and other accessories etc. for complete equipment supplied under this package.

g) Set of commissioning spares, on “As required basis”. h) The Electrical & C&I items/ accessories as specified in succeeding clause/

respective sections herein.

i) Starter Panel (Switch Gear Panel) shall be as follows: a) 2 Sets of DF for each unit shall have one Common Starter Panel (Switch Gear Panel) for DCS based control system.

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16 TITLE : TECHNICAL SPECIFICATION SPEC. NO: PE-TS- 412-165-N001

FOR VOLUME : II B SECTION: C1

DEBRIS FILTER(DF) REV. NO. 0 DATE : 15.06.2015

SHEET 3 OF 9

Switch Gear Panel should have suitable arrangement like Bus Coupler for providing redundancy to incoming supply feeder (1Working + 1 Standby feeder).

j) Power and Control cables between Switchgear Panel and various drives is in bidder’s scope of supply.

k) Control cables between field instruments and junction box / Switchgear panel. l) Set of mandatory spares as indicated in Data Sheet A .

m) All the field instruments stipulated in this specification shall be in Bidder’s scope.

n) Finish paints for touch up painting of equipment after erection at site, in sealed

containers.

o) Set of special tools and tackles if required for maintenance and erection of the equipment supplied.

p) Various drawings, data test reports/ certificates instruction manuals for erection

operation and maintenance etc. as specified in Data Sheet-C. and cables schedule indicating BOQ for power & control cables.

q) Panels & Instruments: Scope and Type as specified in C&I section wherever

required.

r) Cathodic Protection of DF along with Sacrificial Anode.

Any item not specified but required to make DF a complete package shall also be in bidders scope.

4.0 SCOPE OF SERVICES INCLUDED IN THE BIDDER’S SCOPE :

The bidder's scope also includes following services at site, for scope under this specification for Debris Filter for respective projects

a) Installation checks (Erection in BHEL’s scope). b) Commissioning of equipment. c) Trial run for requisite period d) Performance Testing The trial run of equipment shall be generally conducted immediately after commissioning while PG testing shall be conducted at a later date. These activities

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16 TITLE : TECHNICAL SPECIFICATION SPEC. NO: PE-TS- 412-165-N001

FOR VOLUME : II B SECTION: C1

DEBRIS FILTER(DF) REV. NO. 0 DATE : 15.06.2015

SHEET 4 OF 9

for different units shall be timed separately. The no. of visits may be suitably assessed by bidders as per their experience with site stay periods on as required basis. In the event of order no. of visits as follows shall be made as a minimum with charges included in the bidder’s base price itself. � For drawings/documents approval

In the event of order all drawings / documents in soft as well as hard copy shall be submitted as per NIT.

Further on receipt of Customer comments, if required bidder’s engineer shall visit BHEL/ Customer alongwith soft copy to resolve all issues and incorporate comments in the soft copy for across the table finalisation and Category-I approval.

� Site Visits :

i. No. of site visits for combined activities of erection checks and

commissioning for DF as applicable shall be one per unit - for both sets of equipments of one unit. Time duration for erection and commissioning shall be “on as required basis” with equipments run for trial operation thereafter for requisite period to demonstrate satisfactory operation.

However the no. of visits may be suitably assessed by bidders as per their experience with site stay periods on as required basis.

ii. Bidder shall demonstrate guarantees including pressure drops, etc. at site

during subsequent visit for DF of each unit.

iii. For trouble shooting on “as required basis”. 5.0 EXCLUSIONS :

The following are excluded from the bidder's scope . 5.1 Civil foundation works required for installation

5.2 Erection of Equipment at site. 6.0 DESIGN CONSTRUCTION :

In addition to the requirements of Section-D the following shall also be complied with for

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16 TITLE : TECHNICAL SPECIFICATION SPEC. NO: PE-TS- 412-165-N001

FOR VOLUME : II B SECTION: C1

DEBRIS FILTER(DF) REV. NO. 0 DATE : 15.06.2015

SHEET 5 OF 9

packages/ projects under scope of this specification:

6.1 The typical flow diagram applicable for the project specified herein for Debris Filter is enclosed for respective projects in this Section with scope demarcation for bidder’s compliance.

6.2 Location of Debris Filter shall be Approx. 15M Outside TG Hall ‘A’ Row in Transformer Yard. Final Layout drawing shall be provided during Detailed Engineering.

6.3 Thickness of body flange and counter flange of DF shall be as per Drg no PE-DG-999-141-MO17 enclosed at enclosures at Annexure-II.

6.4 The materials of construction specified in Data Sheet-A are minimum requirements and

materials of construction for other components not specified shall be similarly selected by the bidder for the intended duty which shall be subject to purchaser’s approval during detailed engineering in the event of order.

6.5 Housing/ body of Debris Filter shall be designed and manufactured as per the applicable

codes for pressure vessels and to take care of force and moments as enclosed in the specification. However in no case thickness of housing/ body shall be less than connecting pipe thickness as specified in Data Sheet-A of Debris Filter.

6.6 Cathodic Protection for DF along with Sacrificial Anode shall be provided by the bidder in

the equipment.

6.7 Any flow straightner for streamlining the CW flow in Debris Filter if required shall be supplied by the bidder along with mounting arrangement and the fixing details. Suitable Coating for protection against Sea Water and Touch-up Paint in sealed Container after welding in Condenser Outlet Pipe at Site to be provided by the Bidder.

6.8 Velocity in the pipe work shall be less than 1.5 m/ sec for pump suction and less than 2.4 m/ sec. in other pipe work. All valves upto 150 NB shall be ball valves. For higher sizes, gate/ globe/ B.F. valves shall be provided. All instrument valves shall be needle valves.

7.0 Performance Guarantee and Testing :

The Debris Filter shall be guaranteed to meet the performance requirements specified in Section-D and also for trouble free operation after commissioning. Schedule of performance guarantees (enclosed in Volume III) duly filled and signed shall be furnished with the bid.

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16 TITLE : TECHNICAL SPECIFICATION SPEC. NO: PE-TS- 412-165-N001

FOR VOLUME : II B SECTION: C1

DEBRIS FILTER(DF) REV. NO. 0 DATE : 15.06.2015

SHEET 6 OF 9

The Performance guarantees of equipments shall stand valid till the satisfactory completion of performance testing & its acceptance by BHEL/ Consultant/Customer. If the guarantee period specified in the Commercial Specification is higher, same shall prevail.

8.0 Performance Guarantee and Bid Evaluation criteria for Debris Filter.

8.1 Debris Filters : 8.1.1 Performance Guarantee Parameters shall be as under :

� Pressure drop in Debris Filters in clean condition viz. after backwashing.

8.1.2 Bidder to note that bids shall be evaluated on account of pressure drop across Debris Filters (in clean condition) & liquidated damages on account of not meeting the same shall be in accordance with following : A) Bid Evaluation Criteria and Liquidated Damages:

The bids received shall be evaluated for Pressure drop across Debris Filters:

� The permissible limit of pressure drop across Debris Filters in clean

condition shall be 0.5 MWC. � If the pressure drops quoted are higher than above limit, the bids shall be

technically loaded @ Rate as mentioned in Data Sheet-A for respective projects per 0.1 MWC pressure drop.

� However no advantage shall be given for pressure drops quoted less than above permissible limit.

� The maximum acceptance limit for pressure drop across Debris Filter (with technical loading) shall be 0.8 MWC. The bids will be technically rejected for pressure drops quoted higher than above maximum limit.

� The guaranteed pressure drops shall be demonstrated at site by vendors and if found higher shall be subject to LD @ twice the bid evaluation factor as above.

9.0 SPARES :

9.1 Recommended Spares :Bidder to submit the list of recommended spares (along with prices) as per NIT required for three (3) years of reliable operation and maintenance of DF for BHEL reference purpose only. The recommended spares shall not be considered for evaluation and ordering purpose.

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16 TITLE : TECHNICAL SPECIFICATION SPEC. NO: PE-TS- 412-165-N001

FOR VOLUME : II B SECTION: C1

DEBRIS FILTER(DF) REV. NO. 0 DATE : 15.06.2015

SHEET 7 OF 9

9.2 Mandatory Spares Mandatory Spares shall be as per Data Sheet-A or annexure enclosed with data sheet A.

10.0 Quality Plan Bidder shall submit QP in the event of order based on the guidelines given in the specification & QP enclosed therein. QP will be subject to BHEL/ Customer approval and customer hold points for inspection/ testing shall be marked in the QP at the contract stage. Inspection/ testing shall be witnessed as per same apart from review of various test certificates/ Inspection records etc. Charges for 3rd party inspection (TUV/ equivalent) for imported components wherever required shall be included by bidder in the base price itself. Witness for all the test identified under agency “C” & “N” in Quality plan shall be by third party. If BHEL or BHEL customer decides to witness the tests along with third party, the cost of travel of BHEL or BHEL customer shall be borne by BHEL or BHEL customer themselves.

11.0 DELIVERY & DRAWINGS/ DOCUMENTS DISTRIBUTION SCHEDULE : a. Delivery of Equipment for each project shall be as per NIT.

b. Drawings submission schedule shall be as per NIT/as advised by Project Group.

12.0 The makes of various bought out items shall be subjected to purchaser's approval in the event of order.

13.0 It is mandatory for the bidders to submit along with the bid the deviations if any whether major or minor in the schedule of deviations only. In the absence of deviations listed in the schedule of deviations the offer shall be deemed to be in full conformity with the specification "non-withstanding" any thing else stated elsewhere in bidder's offer, data sheets etc. The implied/ indirect deviations in data sheets etc. Shall not be binding on the purchaser.

14.0 The following documents shall be furnished by the bidder with his offer :

� Compliance certificate duly signed and stamped (Enclosed at Schedules). � Guarantee schedule duly signed and stamped (Enclosed at Schedules).

� GA drawings of following with empty/ filled-ups.

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16 TITLE : TECHNICAL SPECIFICATION SPEC. NO: PE-TS- 412-165-N001

FOR VOLUME : II B SECTION: C1

DEBRIS FILTER(DF) REV. NO. 0 DATE : 15.06.2015

SHEET 8 OF 9

� Debris Filter � Debris Flushing pumps (if applicable) � Other equipments considered necessary for Layout/ Civil.

� Electrical Load Data (Enclosed at Vol. III of Specification) � Schedule of Deviation (Enclosed at Schedules).

The bidder to note that load requirement furnished and finalised during tender stage shall only be provided by BHEL and any changes or additional requirement of Electrical load by bidder during contract stage shall be provided by BHEL with cost repercussions to the bidder.

NOTE: Apart from above, no other drawing/ document/ data sheet etc. shall be submitted along with the offer. If any drawing/ document etc. is submitted with the offer, same shall be considered as for ‘Reference’ purpose only and shall not be reviewed/ commented upon and any deviation, exclusion to scope, etc. taken in documents but not highlighted in the deviation schedule shall not be taken cognizance of.

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16 TITLE : TECHNICAL SPECIFICATION SPEC. NO: PE-TS- 412-165-N001

FOR VOLUME : II B SECTION: C1

DEBRIS FILTER(DF) REV. NO. 0 DATE : 15.06.2015

SHEET 9 OF 9

ANNEXURE-I

DEBRIS FILTER

SL.NO. Projects Size (NB)

Length of Debris Filter (Excluding Counter Flange)

Scope of CounterFlange

Scope of Gaskets, nuts and bolts.

1 2X660 MW ENNORE SEZ STPP AT ASH DYKE OF NCTPS, CHENNAI

2500 NB 5200 mm In Purchaser's Scope.

In Bidder's Scope.

Notes: i. Debris Filter Inlet shall be mounted directly on the existing Butterfly valve.

ii. Flap of butterfly valve shall be extended to 1200-1300 mm inside the Debris Filter.

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AN

NE

XU

RE

-III

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TITLE : TECHNICAL SPECIFICATION SPEC. NO. PE-TS- 412-165-N001 FOR VOLUME : II B

DEBRIS FILTER (DF) SECTION : C REV. NO. 0 DATE : 15.06.2015 SHEET 1 of 1

SECTION C2

DEBRIS FILTER

(ELECTRICAL DETAILS)

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TECHNICAL SPECIFICATION FOR

DF(ELECTRICAL PORTION)

SPECIFICATION NO. PE-TS-412-174-A001VOLUME II B SECTION-CREV 01 DATE 22.05.2015 PAGE 1 OF 1

SPECIFIC TECHNICAL REQUIREMENTS: ELECTRICAL

1.0 EQUIPMENT & SERVICES TO BE PROVIDED BY BIDDER/ PURCHASER

1.1 Scope for supply, and erection & commissioning of various equipment forming part of electrical system for this package shall be as per Annexure–I to Section – C [Scope of Work (Electrical)].

1.2 Make of various equipment/ items in the scope of bidder shall be to approval of owner during detailed engineering stage without any commercial implications.

1.3 Bidder shall furnish all AC as well as DC loads required for the system at different voltage levels (eg. 415V AC, 240 V AC, 220 V DC etc.) of all types, such as motor feeders, supply feeders in PEM format along with the offer.

1.4 All electrical equipment shall be suitable for the power supplies, fault levels and climatic conditions indicated in project information enclosed with the specification.

1.5 All drawings, data sheets, Quality Plan, calculations, test reports, test certificates, etc. shall be submitted during detailed engineering stage as per formats enclosed. The same shall be subject to approval without any commercial implications.

2.0 In case of any discrepancy between Customer specification and BHEL standard specification, Customer specification shall prevail.

3.0 DOCUMENTS TO BE SUBMITTED ALONG WITH BID

3.1 Bidder shall confirm total compliance to the electrical specification without any deviation from the technical/ quality assurance requirements stipulated. In line with this, the bidder as technical offer shall furnish two signed and stamped copies of the following: a) A copy of this sheet “Electrical Equipment Specification for Ventilation System’ and sheet

“Electrical Scope between BHEL and Vendor” with bidder’s signature and company stamp. b) List of Erection and Commissioning spares. c) List of Erection & Maintenance tools & tackles.d) Electrical load requirement in the load data format.

3.2 No technical submittal such as copies of data sheets, drawings, write-up, quality plans, type test certificates, technical literature, etc, is required during tender stage. Any such submission even if made, shall not be considered as part of offer.

4.0 LIST OF ENCLOSURES

4.1 Electrical scope between BHEL & vendor (Annexure-I). 4.2 Electrical Section-C 4.3 Technical specification – Customer specification - Motors 4.4 BHEL standard specification for LT motors : PE-SS-999-506-E101 (Section-D) 4.5 Datasheets – A and C 4.6 Quality Plan for motors. 4.7 Load data format (Annexure-II). 4.8 Cable Schedule Format(Annexure-III)

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SPECIFIC ELECTRICAL REQUIREMENT FOR DF SYSTEM

SL.NO. PARAMETERS UNIT Ennore

MOTOR

1 DESIGN AMBIENT TEMP DEG. C 50

2VOLTAGE SUPPLY AND VARIATION

VOLT415V, + 10%

3FREQUENCY WITH VARIATION

Hz50, +3% to -5%

4COMBINED VOLTAGE & FREQUENCY VARIATION

10%

5MAX ACCEPTABLE RATING OF MOTOR AT 415 V KW

160 KW & below

6SYSTEM FAULT LEVEL AND ITS DUARTION KA

50kA, 1sec

7SUTABILITY OF TERMINAL BOX FOR FAULT LEVEL AND DURATION

50 KA, 0.25 sec

8CLASS OF INSULATION & TEMP RISE LIMITED TO

Class-F and temp rise limited to Class-B

9 MIN. STARTING VOLTAGE 85%

10

MOTOR RATING FOR SINGLE PHASE SUPPLY

0.2 kW & Below

11MAXIMUM LOCKED ROTOR CURRENT

% OF FLC600% inclusive of IS tolerance.

12

ACCEPTABLE NOISE LEVEL

DB

As per IS 12065

13TYPE OF STARTER PROVIDED IN MCC DOL

14DOP OF ENCLOSURE IP-55 & IP-54 for outdoor &

indoor resp.

15SPACE HEATER REQUIREMENT

<30kW30KW & ABOVE

16PAINT SHADE Siemens Grey (RAL 7032)

17SPECIAL REQUIREMENT -

18

ENERGY EFFICIENT All LV MOTORS ABOVE 10 KW WITH S1 DUTY SHALL BE COMPULSORILY OF ENERGY EFFICIENT LEVEL IE2 AS PER IS 12615:2011

2X660MW ENNORE TPP

MOTOR DATA SHEET-A

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d by B

HEL b

ased

on lo

ad da

ta pr

ovide

d by v

endo

r at c

ontra

ct sta

ge fo

r all e

quipm

ent s

uppli

ed by

vend

or as

part

of co

ntrac

t. Any

other

vo

ltage

leve

l (AC/

DC) r

equir

ed w

ill be

deriv

ed by

the v

endo

r.

2 Lo

cal P

ush B

utton

Stat

ion (f

or m

otors)

BH

EL

BHEL

Lo

cated

near

the m

otor.

3 Po

wer c

ables

, con

trol c

ables

and s

creen

ed co

ntrol

cable

s for a)

both

end e

quipm

ent in

BHE

L’s sc

ope

b) b

oth en

d equ

ipmen

t in ve

ndor

’s sc

ope

c) on

e end

equip

ment

in ve

ndor

’s sc

ope

B

HEL

V

endo

r

BHE

L

BHEL

BH

EL

BHEL

1. Fo

r 3.b)

& c)

: Size

s of c

ables

requ

ired s

hall b

e info

rmed

by ve

ndor

at

contr

act s

tage (

base

d on i

nputs

prov

ided b

y BHE

L) in

the f

orm

of ca

ble

listin

g. Fin

alisa

tion o

f cab

le siz

es sh

all be

done

by B

HEL.

Vend

or sh

all

prov

ide lu

gs &

glan

ds ac

cord

ingly.

2.

Cabli

ng/ te

rmina

tion b

y BHE

L.

4 Ju

nctio

n box

for c

ontro

l & in

strum

entat

ion ca

ble

Vend

or

BHEL

Nu

mber

of J

uncti

on B

oxes

shall

be su

fficien

t and

posit

ioned

in th

e fiel

d to

minim

ize lo

cal c

ablin

g ( m

ax 10

-12 m

trs) a

nd tr

unk c

able.

5

Any s

pecia

l type

of ca

ble lik

e com

pens

ating

, co-

axial

, pr

efab,

MICC

, fibr

eopti

cal e

tc.

Vend

or

BHEL

Re

fer sc

ope/

C&I p

ortio

n of s

pecif

icatio

n for

scop

e of fi

bre O

ptica

l cab

les if

used

betw

een P

LC/ m

icro p

roce

ssor

& D

CS.

6 Ca

ble tr

ays,

acce

ssor

ies &

cable

tray

s sup

portin

g sys

tem

BHEL

BH

EL

7 Ca

ble gl

ands

and l

ugs f

or eq

uipme

nt su

pplie

d by V

endo

r Ve

ndor

BH

EL

1. Do

uble

comp

ress

ion N

i-Cr p

lated

bras

s cab

le gla

nds

2. So

lder le

ss cr

impin

g typ

e hea

vy du

ty co

pper

lugs

for p

ower

& co

ntrol

cable

s. 8

Cond

uit an

d con

duit a

cces

sorie

s for

cabli

ng be

twee

n eq

uipme

nt su

pplie

d by v

endo

r Ve

ndor

BH

EL

Con

duits

shall

be m

edium

duty,

hot d

ip ga

lvanis

ed co

ld ro

lled m

ild st

eel

rigid

cond

uit as

per I

S: 95

37.

9 Lig

hting

BH

EL

BHEL

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REV-

0, DA

TE: 2

2.05.2

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Page

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10

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ment

grou

nding

& lig

htning

prote

ction

BH

EL

BHE

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11

Below

grad

e gro

undin

g BH

EL

BHEL

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LT

Moto

rs wi

th ba

se pl

ate an

d fou

ndati

on ha

rdwa

re

Vend

or

BHEL

Ma

kes s

hall b

e sub

ject to

custo

mer/

BHEL

appr

oval

at co

ntrac

t stag

e. 13

Ma

ndato

ry sp

ares

Ve

ndor

-

Vend

or to

quote

as pe

r spe

cifica

tion.

14

Re

comm

ende

d O &

M sp

ares

Ve

ndor

-

As sp

ecifie

d else

wher

e in s

pecif

icatio

n 15

An

y othe

r equ

ipmen

t/ mate

rial/ s

ervic

e req

uired

for

comp

leten

ess o

f sys

tem ba

sed o

n sys

tem of

fered

by th

e ve

ndor

(to e

nsur

e tro

uble

free a

nd ef

ficien

t ope

ratio

n of

the sy

stem)

.

Vend

or

BHEL

16

a) In

put c

able

sche

dules

(Con

trol &

Scre

ened

Con

trol

Cable

s)

b) C

able

inter

conn

ectio

n deta

ils fo

r abo

ve

c) C

able

block

diag

ram

Vend

or

Vend

or

V

endo

r

- - -

Cable

listin

g for

Con

trol a

nd In

strum

entat

ion C

able

in en

close

d exc

el for

mat s

hall b

e sub

mitte

d by v

endo

r dur

ing de

tailed

engin

eerin

g stag

e.

17

Equip

ment

layo

ut dr

awing

s Ve

ndor

-

For p

repa

ratio

n of c

ablin

g lay

out d

rawi

ngs b

y BHE

L, ve

ndor

shall

furn

ish

Elec

trical

equip

ment

layou

t dra

wing

s (bo

th in

print

form

as w

ell as

in

AUTO

CAD)

of th

e com

plete

plant

(inclu

ding e

lectric

al ar

ea) in

dicati

ng

locati

on an

d ide

ntific

ation

of al

l equ

ipmen

t req

uiring

cabli

ng,

18

Elec

trical

Equip

ment

GA dr

awing

Ve

ndor

-

For n

eces

sary

inter

face r

eview

.

NOTE

S: 1. Ma

ke of

all e

lectric

al eq

uipme

nt/ ite

ms su

pplie

d sha

ll be r

epute

d mak

e & sh

all be

subje

ct to

appr

oval

of BH

EL/cu

stome

r afte

r awa

rd of

contr

act.

2. Al

l QPs

shall

be su

bject

to ap

prov

al of

BHEL

/custo

mer a

fter a

ward

of co

ntrac

t with

out a

ny co

mmer

cial im

plica

tion.

3. In

case

the r

equir

emen

t of J

uncti

on B

ox ar

ises o

n acc

ount

of Po

wer C

able

size m

is-ma

tch du

e to v

endo

r eng

ineer

ing at

later

stag

e, ve

ndor

shall

supp

ly the

Junc

tion

Box f

or su

itable

term

inatio

n.

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DESEIN Tender SpecificationVol-IV : Electrical Works

Motors

2x660 MW Ennore SEZ Supercritical Thermal Power Project at Ash Dyke of NCTPS

Spec. No. CE/C/P&E/EE/E/OT. No. 03/2013-14Vol. IV: Electrical Works:359

CHAPTER – 12

MOTORS

1.00.00 DESIGN CRITERIA

1.00.01 For the purpose of design of equipments /systems, an ambient temperature of 50 °C

and relative humidity of 85% shall be considered. The equipment shall operate in a

highly polluted environment.

1.00.02 Transient voltage dip on starting of the largest motor with DOL shall be limited to 20%

of the nominal system voltage at the voltage terminals.

1.00.03 Rating

The motor rating shall be arrived at considering 15% margin over the duty point

input or 10% over the maximum demand of the driven equipment, whichever is

higher, considering highest system frequency.

All motors shall be continuously rated (S1 duty). However, crane motors shall be

rated for S4 duty, 40% cyclic duration factor.

Whenever the basis for motor ratings are not specified in the corresponding

mechanical specification sub-sections, maximum continuous motor ratings shall be at

least 10% above the maximum load demand of the driven equipment under entire

operating range including voltage and frequency variations.

1.00.04 Starting Voltage requirement for all motors (except mill motors):

1. 85 % of rated voltage for motors up to 1000 kW

2. 80 % of rated voltage for above 1000 kW and up to 4000 kW

3. 75 % of rated voltage for above 4000 kW

For Mill Motors:

1. 85 % of rated voltage for motors above 1000 kW

2. 90 % of rated voltage for motors up to 1000 kW

1.00.05 Canopy shall be provided for outdoor motors.

1.01.00 Contractor shall provide fully compatible electrical system, equipments, accessories

and services.

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DESEIN Tender SpecificationVol-IV : Electrical Works

Motors

2x660 MW Ennore SEZ Supercritical Thermal Power Project at Ash Dyke of NCTPS

Spec. No. CE/C/P&E/EE/E/OT. No. 03/2013-14Vol. IV: Electrical Works:360

1.02.00 All the equipment, material and systems shall, in general, conform to the latest edition

of relevant National and international Codes & Standards, especially the Indian

Statutory Regulations.

1.03.00 Voltage and frequency variations:

Frequency: (+) 3% and (-) 5%

Voltage : i. ACa. ± 6% for 11 kV/3.3 kV

b. ±10% for 415 V

Combined 10 % (absolute sum)

ii. DC- +10% to -15% for 220 V DC

1.04.00 All LV motors above 10 kW with S1 duty shall be compulsorily of Energy efficient

level IE 2 as per IS 12615: 2011.

1.05.00 The responsibility of coordination with electrical agencies and obtaining all necessary

clearances shall be of the contractor.

1.06.00 Type

AC Motors:

(a.) Squirrel cage induction motor suitable for direct-on-line starting.

(b.) Crane duty motors shall be slip ring type induction motor

DC Motors

(a.) Shunt wound.

1.07.00 Temperature Rise

Air cooled motors

70°C by resistance method

Water cooled

80° C over inlet cooling water temperature mentioned elsewhere, by resistance

method.

1.08.00 Degree of Protection

Degree of protection for various enclosures shall be as follows :

i) Indoor motors – IP 54

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DESEIN Tender SpecificationVol-IV : Electrical Works

Motors

2x660 MW Ennore SEZ Supercritical Thermal Power Project at Ash Dyke of NCTPS

Spec. No. CE/C/P&E/EE/E/OT. No. 03/2013-14Vol. IV: Electrical Works:361

ii) Outdoor motors – IP 55

iii) CW motors (in case of screen

prot. Drip proof)

– IP 23

iv) Cable box – indoor area – IP 54

v) Cable box – outdoor area – IP 55

2.00.00 CODES AND STANDARDS

2.01.00 All motors shall confirm to the latest editions including all applicable amendment of

relevant IS, IEC and CBIP standards/Publications. In case any other standard is

followed that ensures equal or better quality, may be accepted. However the English

version of the Standard adopted shall be submitted.

2.02.00 Major Standards, which shall be followed, are listed below. Any other applicable

Indian standards for any component part even if not covered in the list shall also be

followed

1.) Three phase induction motors : IS:325, IEC:60034

2.) Single phase AC motors : IS:996, IEC:60034

3.) Crane duty motors : IS:3177, IEC:60034

4.) DC motors/generators : IS:4722

5.) Degree of protection by

enclosures for rotating electrical

machines

: IS: 4691

IS: 4728

IS: 6362

IS: 2253

6.) Noise levels for rotating

electrical machines

Mechanical Vibrations for

rotating electrical machines

IS: 12065

IS: 12075

3.00.00 OPERATIONAL REQUIREMENTS

3.01.00 Starting Time

3.01.01 For motors with starting time up to 20 secs at minimum permissible voltage during

starting, the locked rotor withstand time under hot condition at highest voltage limit

shall be at least 2.5 secs more than starting time .

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DESEIN Tender SpecificationVol-IV : Electrical Works

Motors

2x660 MW Ennore SEZ Supercritical Thermal Power Project at Ash Dyke of NCTPS

Spec. No. CE/C/P&E/EE/E/OT. No. 03/2013-14Vol. IV: Electrical Works:362

3.01.02 For motors with starting time more than 20 secs and up to 45 secs at minimum

permissible voltage during starting, the locked rotor withstand time under hot

condition at highest voltage limit shall be at least 5 secs more than starting time.

3.01.03 For motors with starting time more than 45 secs at minimum permissible voltage

during starting, the locked rotor withstand time under hot condition at highest voltage

limit shall be more than starting time by at least 10% of the starting time.

3.01.04 Speed switches mounted on the motor shaft shall be provided in cases where above

requirements are not met.

3.01.05 Motors shall be capable of restarting under full load after a momentary loss of voltage

with the possibility of 150 % nominal voltage during fast bus transfer.

3.02.00 Torque Requirements

3.02.01 Accelerating torque at any speed with the lowest permissible starting voltage shall be

at least 10% motor full load torque.

3.02.02 Pull out torque at rated voltage shall not be less than 205% of full load torque. It shall

be 275% for crane duty motors.

4.00.00 DESIGN AND CONSTRUCTIONAL FEATURES

4.00.01 Suitable single phase space heaters shall be provided on motors rated 30 kW and

above to maintain windings in dry condition when motor is standstill. Separate

terminal box for space heaters & RTDs shall be provided.

4.00.02 All motors shall be suitable for direct on line starting through any type of breaker.

L All motors shall be either totally enclosed fan cooled (TEFC) or totally enclosed

tube ventilated (TETV) or Closed air circuit air cooled (CACA) type. However, motors

rated 3000KW or above can be Closed air circuit water cooled (CACW). CW motors

can be screen protected drip proof (SPDP) type. Motors located in hazardous areas

shall have flame proof enclosures conforming to IS: 2148 as detailed below

(a) Fuel oil area : Group - IIB

(b) Hydrogen generation plant

area :

Group - IIC

4.00.03 Winding and Insulation

(a) Type : Non-hygroscopic, oil resistant, flame resistant

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DESEIN Tender SpecificationVol-IV : Electrical Works

Motors

2x660 MW Ennore SEZ Supercritical Thermal Power Project at Ash Dyke of NCTPS

Spec. No. CE/C/P&E/EE/E/OT. No. 03/2013-14Vol. IV: Electrical Works:363

(b) Starting duty : Two hot starts in succession, with motor initially

at normal running temperature

(c) 11 kV / 3.3 kV

AC motors

: Class F: with winding temperature rise limited to

class B. They shall withstand 1.2/50 micro sec

switching surges of 4U+5 KV (U=Line voltage in

KV). The coil inter-turn insulation shall be

suitable for 0.3/3 micro sec. surge of 32 KVp

and 12 kVp for 11 kV ad 3.3 kV system

respectively followed by 1 min power frequency

high voltage test of appropriate voltage on inter

turn insulation.

(d) 415V AC &

220V DC

motors

: Class ‘F’ with temperature rise limited to class

‘B’

4.00.04 Motors rated above 1000 kW shall have insulated bearings to prevent flow of shaft

currents.

4.00.05 Motors with heat exchangers shall have dial type thermometer with adjustable alarm

contacts to indicate inlet and outlet primary air temperature.

4.00.06 Noise level and vibration shall be limited within the limits prescribed in IS: 12065 & IS:

12075 respectively. Motors shall withstand vibrations produced by driven equipment.

4.00.07 In MV/HV motors, 12 nos. simplex or 6 nos. duplex RTDs (two per phase), each

having D.C. resistance of 100 ohms at 0°C, embedded in the stator winding at

locations where highest temperatures may be expected, shall be provided. The

material of the ETD’s shall be platinum. Each bearing shall be provided with dial type

thermometer with adjustable alarm contact and resistance type temperature detector.

All HV motors shall be provided with shaft grounding rings for bearing protection and

earthing shaft current.

4.00.08 MV/HV motors shall also be capable of satisfactory operation at full load at a

supply voltage of 80% of the rated voltage and shall be capable of either two starts

in quick succession with third start after 5 minutes in cold condition or two starts at

15 minutes intervals in hot condition, both cases with voltage and frequency

variation within specified limits.

4.00.09 Locked rotor current of the MV motors shall be limited to 600% (subject to IS

tolerance) of the full load current of the motors and f o r H V motor shall be

limited to 450% (inclusive of IS tolerance) of full load current of the motor.

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DESEIN Tender SpecificationVol-IV : Electrical Works

Motors

2x660 MW Ennore SEZ Supercritical Thermal Power Project at Ash Dyke of NCTPS

Spec. No. CE/C/P&E/EE/E/OT. No. 03/2013-14Vol. IV: Electrical Works:364

Locked rotor current of the LV motor shall not exceed 600% of full load current

inclusive of IS tolerance.

4.00.10 MV Motors shall be provided with differential protection. These motors shall be

provided with star connected stator windings. The 3 nos. current transformers, one

for each phase shall be mounted in a separate compartment in the neutral

side terminal box. The three phases shall be connected to form the star point

after they pass through the CTs. These differential protection CTs shall be supplied

loose by 11/ 3.3 kV switchgear manufacturer.

4.00.11 Motor body shall be grounded at two earthing points on opposite sides with two

separate and distinct grounding pads complete with tapped holes, GI bolts and

washers.

4.00.12 HV motors can be offered with either elastimould termination or dust tight phase

separated double walled (metallic as well as insulated barrier) cable boxes. In case

elastimould terminations are offered, then protective cover and trifurcating sleeves

shall also be provided. Removable gland plates of thickness 3 mm (hot/cold rolled

sheet steel) or 4 mm (non magnetic material for single core cables) shall be provided

in case of cable boxes.

4.00.13 All motors shall be so designed that maximum inrush currents and locked rotor and

pullout torque developed by them at extreme voltage and frequency variations do not

endanger the motor and driven equipment.

4.00.14 The motors shall be suitable for bus transfer schemes provided on the 11 kV, 3.3

kV/415V systems without any injurious effect on its life.

4.00.15 All motors below 15 kW shall be provided with sealed ZZ bearings.

4.00.16 For motors rated 1000 KW & above, neutral current transformers of PS class shall be

provided on each phase in a separate neutral terminal box.

4.00.17 All motors shall be provided with an emergency stop push button near the motor as

per the Indian Statutory regulations.

4.00.18 The motor terminal box shall be suitable for withstanding the maximum system fault

current for a duration of at least 0.25 seconds.

4.00.19 Neutral in case of HV motors shall be kept accessible.

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DESEIN Tender SpecificationVol-IV : Electrical Works

Motors

2x660 MW Ennore SEZ Supercritical Thermal Power Project at Ash Dyke of NCTPS

Spec. No. CE/C/P&E/EE/E/OT. No. 03/2013-14Vol. IV: Electrical Works:365

4.00.20 Motors shall be designed to easy access for drilling holes through motor feed of

mounting flange for installation of dowel pins after assembly of the motor and driven

equipment.

4.00.21 Well spacious working platforms shall be provided around the motor area for carrying

out maintenance & testing works. Platform shall be minimum of 300 mm below the

level of motor base plate.

4.00.22 Flow switches shall be provided for monitoring oil flow of forced lubrication bearings,

if used. Alarm switch contact rating shall be minimum 0.5 A at 220 V DC and 10 A at

230 V AC.

4.00.23 For bearing temperature measurement, duplex RTDs shall be provided for each

bearing and shall be wired up to the terminal box..

4.00.24 Lube oil pressure transmitters shall be provided to DCS for remote monitoring. Lube

oil pressure very low trip to HV equipment shall be 2 out of 3 logic.

4.00.25 Capillary type temperature gauge cum switch shall be provided for DE / NDE of HV

Motors

4.00.26 Motors with CACA/CACW heat exchangers shall have dial type thermometer with

adjustable alarm contacts to indicate the following:

-Hot and cold air temperatures of the closed air circuit for CACA motors.

-Hot and cold, air and water temperatures for CACW motors.

The Alarm switch contact rating shall be minimum 0.5 A at 220 V DC and 10 A at 230

V AC.

4.00.27 Lifting Provisions

Motor weighing 25 kg or more shall be provided with eye bolt or other adequate

provision for shifting. Electrical hoists shall be provided for motors above 1000 kgs for

maintenance of the same.

4.00.28 DC MOTORS

DC motors shall be provided where specified/required. DC Motors shall be sized for

operation with fixed resistance starting for reliability. DC motors shall be shunt wound

type. Motors shall be capable of delivering the rated output at 220 V DC with (+) 10%

and (-) 15% variations without exceeding its guaranteed temperature limits. 220 V DC

Page 47: TANGEDCO - Bharat Heavy Electricals · 2015-07-17 · Seismic Zone III as per IS:1893-2002 1.5 Access to Site Site is well connected to all weather road from Pattamandri on the Thiruvottiyur

DESEIN Tender SpecificationVol-IV : Electrical Works

Motors

2x660 MW Ennore SEZ Supercritical Thermal Power Project at Ash Dyke of NCTPS

Spec. No. CE/C/P&E/EE/E/OT. No. 03/2013-14Vol. IV: Electrical Works:366

system shall be unearthed. Starting current of the DC motors shall be limited to 200%

of the full load current of the motor, and is subject to IS tolerance. DC Motors shall be

similar to AC Motors with respect to other features like enclosure type, cooling and

class of insulation

4.00.30 Painting

Motor including fan shall be painted with corrosion proof paints of colour shade

Siemens grey (RAL 7032).

4.00.31 Local Push Button Stations

The LPBS shall be installed near the motors to be controlled. Individual channel

supports shall be used for each LPBS. These shall be installed as per approved

erection detail drawing. LPBS for hazardous areas shall be CMRS certified and CCE

approved.

All LPBS shall have necessary canopies. Wiring of LPBS shall be checked before

giving control supply.

5.00.00 LIST OF TESTS TO BE CONDUCTED FOR HV, MV and LV MOTORS

5.01.00 TYPE TESTS

(a) No load saturation and loss curves up to approximately 115% of rated voltage

(b) Momentary overload test

(c) Temperature rise test at rated conditions. During heat run test, bearing temp.,

winding temp., core temp., coolant flow and its temperature shall also be

measured. In case the temperature rise test is carried at load other than rated

load, specific approval for the test method and procedure is required to be

obtained. Wherever ETD's are provided, the temperature shall be measured by

ETD's also for the record purpose.

(d) Surge withstand test on the sample coil after placing it in stator core at (4U + 5

KV) and with at least five impulse of 1.2/50 micro sec. wave, for HV motors only,

where U is the line to line voltage in kV.

(e) Surge-withstand test with 0.3/3 micro sec. wave on each type of 3.3/11 kV motor

coils with at least five such impulses, followed by one minute power frequency

high voltage test on turn to turn insulation, after cutting the coil and bringing out

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DESEIN Tender SpecificationVol-IV : Electrical Works

Motors

2x660 MW Ennore SEZ Supercritical Thermal Power Project at Ash Dyke of NCTPS

Spec. No. CE/C/P&E/EE/E/OT. No. 03/2013-14Vol. IV: Electrical Works:367

the turns suitably. The power frequency test voltage shall be decided during

detailed engineering.

f) Dimensions (for motors covered by IS 1231:1974 and IS 2223:1983 only)

g) Measurement of resistance of windings of stator and wound rotor.

h) Reduced voltage running up test at no load (for squirrel cage motors up to 37kw

only)

i) Full load test to determine efficiency, power factor and slip.

j) Insulation resistance test

k) Test for vibration severity of motor

l) Test for noise levels of motor

m) Test for degree of protection by enclosure

n) Temperature rise test at limiting values of voltage and frequency variations

o) Over speed test

5.02.00 ROUTINE TESTS

The following shall constitute the routine tests.

a) Insulation resistance test

b) Measurement of resistance of windings of stator and wound rotor.

c) No load test

d) Locked rotor readings of voltage, current and power input at a suitable reduced

voltage

e) Reduced voltage running up test ( for squirrel cage motor)

f) Open circuit voltage ratio of stator and rotor windings (for slip ring motors); rotor;

g) High voltage test

6.00.00 INSPECTION AND TESTING AT SITE

6.01.01 Insulation resistance of 415V motors shall be measured between the winding of the

machine and its frame by means of a 500/1000V megger. A minimum value of 1 mega

ohm for 415V motors shall be considered a safe value. In case of lower I.R. Value, the

insulation value shall be brought up by any of the following methods as desired by the

Site Engineer:

(a.) Blowing hot air in case of big motors.

(b.) Putting the motor in electric oven in case of smaller motors.

(c.) Placing heaters or lamps around and inside in case of small motors after making

suitable guarding and covering arrangements so as to conserve the heat.

Page 49: TANGEDCO - Bharat Heavy Electricals · 2015-07-17 · Seismic Zone III as per IS:1893-2002 1.5 Access to Site Site is well connected to all weather road from Pattamandri on the Thiruvottiyur

DESEIN Tender SpecificationVol-IV : Electrical Works

Motors

2x660 MW Ennore SEZ Supercritical Thermal Power Project at Ash Dyke of NCTPS

Spec. No. CE/C/P&E/EE/E/OT. No. 03/2013-14Vol. IV: Electrical Works:368

6.01.02 Site Test

(a.) Measurement of vibration.

(b.) Measurement of insulation resistance and polarization index.

(c.) Measurement of full load current.

(d.) Test running of the motors, checking the temperature rise and identifying the hot

spot etc.

6.01.03 3.3 kV motors shall be tested for insulation by 500/1000V megger and its value should

not be less than the safe minimum insulation of ����������� ��� ���������������

case the insulation is low, the following method of drying has to be adopted:

a. By locking the motor so that it cannot rotate and then applying such a low

voltage to the stator terminals that full load current flows in the stator, keeping

the stator winding temperature below 90 deg. C. In this a close watch shall be

kept for any possible overheating and I.R. Values vs. temperature shall be

plotted and heating continued till I.R. Value becomes steady.

b. By blasting hot air from external source, Maximum temperature of winding

while drying should be 70 deg. C to 80 deg. C. (Thermometer) or 90 deg. C. to

95 deg. C. by resistance method. Heating should be done slowly till steady

temperature of winding is reached after 4 to 5 hours and for large machines after

10 hours. A record has to be kept for drying process, with half an hour

readings and, after steady temperature is reached, at an interval of 2 hours. In

case it is essential, the drying process can be supplemented by blower.

Page 50: TANGEDCO - Bharat Heavy Electricals · 2015-07-17 · Seismic Zone III as per IS:1893-2002 1.5 Access to Site Site is well connected to all weather road from Pattamandri on the Thiruvottiyur

TITLE : TECHNICAL SPECIFICATION SPEC. NO. PE-TS- 412-165-N001 FOR VOLUME : II B

DEBRIS FILTER (DF) SECTION : C REV. NO. 0 DATE : 15.06.2015 SHEET 1 of 1

SECTION C3

DEBRIS FILTER

(C&I DETAILS)

Page 51: TANGEDCO - Bharat Heavy Electricals · 2015-07-17 · Seismic Zone III as per IS:1893-2002 1.5 Access to Site Site is well connected to all weather road from Pattamandri on the Thiruvottiyur

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Page 53: TANGEDCO - Bharat Heavy Electricals · 2015-07-17 · Seismic Zone III as per IS:1893-2002 1.5 Access to Site Site is well connected to all weather road from Pattamandri on the Thiruvottiyur

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Page 54: TANGEDCO - Bharat Heavy Electricals · 2015-07-17 · Seismic Zone III as per IS:1893-2002 1.5 Access to Site Site is well connected to all weather road from Pattamandri on the Thiruvottiyur

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Page 57: TANGEDCO - Bharat Heavy Electricals · 2015-07-17 · Seismic Zone III as per IS:1893-2002 1.5 Access to Site Site is well connected to all weather road from Pattamandri on the Thiruvottiyur

A.GENERAL & SPECIFIC TECHINICAL REQUIREMENT �������������

����������������

Page 58: TANGEDCO - Bharat Heavy Electricals · 2015-07-17 · Seismic Zone III as per IS:1893-2002 1.5 Access to Site Site is well connected to all weather road from Pattamandri on the Thiruvottiyur

Specific�Technical�Requirements�

1)All�motorised�valves�of�200NB�or�more�than�200NB�size�shall�be�provided�with�integral����motorized�bypass�valves�on�all�process�lines.�

2)Components�of�instruments,�control�devices,�accessories,�piping�etc.�which�contact�with�steam,�condensate�or�boiler�feed�water�shall�be�manufactured�from�copper�free�materials�which�do�not�react�with�media�at�operating�parameters.��

3)Valve�end�position�(Open�&�Close)�shall�be�monitored�for�the�manual�critical�valves,�wherever�provided.��

�4)All�the�instruments/drives�shall�be�terminated�on�JBs/Panels�in�field.�JBs/Panels�shall�be�in�Bidder's�scope.�

5)Scope�of�Instrumentation�cables�(Screened�Control�Cables),�Fibre�Optic�cable�&�Control�cables�shall�be�as�per�Electrical�Cable�scope�matrix�in�Electrical�portion�of�specification.��

6)Bidder�to�comply�with�codes�and�standards�as�mentioned�in�the�specification.�

7)Bidder�shall�provide�an�unlimited�warranty�on�all�equipment�and�software�for�three�years�after�the�start�of�the�warranty�period,�i.e.�after�satisfactory�completion�of�initial�operations.�This�warranty�shall�include�repair,�replacement�or�correction�of�identified�software�or�hardware�discrepancies�at�no�cost�to�OWNER.�

8)All�local�gauges,�transmitters�and�switches�shall�be�mounted�on�suitable�enclosures,�racks�subject�to�owner’s�approval.�All�transmitters�shall�be�HART�compatible.��

�9)Bidder�to�delegate�/depute�their�persons/experts�as�per�owner/consultants’�requirement.��

10)Bidder�must�offer�general�tools�and�tackles�and�special�calibration�instruments�required�during�start�up,�trial�run,�operation�and�maintenance�of�the�system.��

11)The�above�given�scope�is�indicative�&�minimum.�Any�item/�equipment�not�indicated�above�however�required�for�the�completeness�of�the�system�is�to�be�supplied�by�bidder�without�any�technical,�commercial�and�delivery�implication�to�BHEL.�

12)Bidder�shall�provide�Cable�Schedule�in�BHEL�excel�format�provided�in�Electrical�portion�of�the�specification.�Also,�Cable�Interconnections�details�for�Complete�System�shall�be�in�Bidder’s�scope.��

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Specific�Technical�Requirements�

13)All�the�instruments/equipment/electrical�items�shall�be�provided�&�designed�with�maximum�star�rating�as�available�in�line�with�energy�conservation�policies�notified�by�BEE,�GOI�at�the�time�of�supply.��

�14)Each�communication�Network�shall�be�industrial�grade�and�shall�be�provided�with�industrial�grade�managed�type�Ethernet�switches,�external�surge�protection�system/devices�and�industrial�firewall.�Industrial�grade�managed�type�Ethernet�switches�shall�be�provided�with�in�built�diagnostic�features,�20%�spare�parts�&�in�built�redundant�power�supply.��

15)All�approval/Inspection�are�to�be�carried�out�by�Owner�or�owner�appointed�agency�only.��

16)The�make/model�of�various�instruments/items/systems�shall�be�subject�to�approval�of�owner/purchaser�during�detailed�engineering�stage.�No�commercial�implication�in�this�regard�shall�be�acceptable.�In�case�of�any�conflict�and�repetition�of�clauses�in�the�specification,�the�more�stringent�requirements�among�them�are�to�be�complied�with.��

17)Each�of�the�Plant�Auxiliaries�&�off�site�systems�shall�be�provided�with�annunciation�system.�It�shall�be�an�integral�part�of�the�control�system.�All�the�field�contact�for�this�purpose�shall�be�acquired�through�control�system.�The�annunciation�sequence/logic�shall�conform�to�ISA�sequence�ISA�2A.�The�window�lamps�for�the�system�shall�be�driven�through�output�modules�of�the�control�system.���

18)The�instrumentation�to�be�provided�for�each�of�the�plant�auxiliary�&�Off�Site�Plant�systems�shall�be�as�per�the�technical�specification�document�/�drawings�wherever�provided�for�the�respective�systems�as�a�minimum�requirement�for�bidding�purpose.�However,�for�completeness�of�each�of�the�plant�auxiliary�&�Off�Site�system�and�its�associated�equipment,�Bidder�shall�also�provide�all�the�necessary�instruments�to�the�process�requirement�even�if�it�is�not�specifically�indicated�in�the�given�technical�Specification�document�/�drawings.�

19)All�cables�terminated�in�the�terminal�block,�power�distribution�scheme�instruments�shall�be�ferruled.�Ferruling�shall�be�double�cross�ferruling�(i.e.)�source�and�destination�addresses�shall�be�marked�on�both�sides�of�the�tube�ferruling.�

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Specific�Technical�Requirements�

20)Bidder�shall�provide�local�panel�for�local�start/�stop�monitoring�of�auxiliaries�and�equipment�as�per�requirement�.The�requirement�shall�be�decided�during�detailed�engineering.�All�local�panel�shall�be�NEMA�4X�with�canopy.�

Page 61: TANGEDCO - Bharat Heavy Electricals · 2015-07-17 · Seismic Zone III as per IS:1893-2002 1.5 Access to Site Site is well connected to all weather road from Pattamandri on the Thiruvottiyur

SPECIFICATION FORCONTROL & INSTRUMENTATION FOR AUX

PACKAGES

SPECIFICATION NO.:

VOLUME

SUB SECTION

REV. NO. DATE :

SHEET OF FOR

M N

O. P

EM

-666

6-0

GENERAL REQUIREMENT

1.0 Bidder shall provide complete and independent control & instrumentation system with all accessories, auxiliaries and associated equipments for the safe, efficient and reliable operation of auxiliary systems.

2.0 The quantity of instruments for auxiliary system shall be as per tender P &ID wherever provided of the respective system as a minimum, for bidding purpose. However, Bidder shall also include in his proposal all the instruments and devices that are needed for the completeness of the plant auxiliary system/ equipment supplied by the bidder, even if the same is not specifically appearing in the P & ID. During detail engineering if any additional instruments are required for safe & reliable operation of plant, bidder shall supply the same without any price implication.

3.0 Measuring instruments/equipment and subsystems offered by the bidder shall be from reputed experienced manufacturers of specified type and range of equipment, whose guaranteed and trouble free operation has been proven. Further all the instruments shall be of proven reliability, accuracy, and acceptable international standards and shall be subject to employer’s approval. All instrumentation equipment and accessories under this specification shall be furnished as per technical specification, ranges, makes/ numbers as approved by the employer’ during detail engineering.

4.0 The necessary root valves, impulse piping, drain cocks, gauge-zeroing cocks, valve manifold and all the other accessories required for mounting/ erection of these local instruments shall be furnished, even if not specifically asked for, on as required basis. The contacts of equipment mounted instruments; sensors, switches etc for external connection including spare contacts shall be wired out to suitably located junction boxes.

5.0 The customer specification attached as Specific Technical Requirement will supercede the Data sheets, if there is any mismatch.

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For sea water application, MOC of C&I instruments and related accessoriesshall be Duplex SS (Refer data sheet A of Section D1)

Page 63: TANGEDCO - Bharat Heavy Electricals · 2015-07-17 · Seismic Zone III as per IS:1893-2002 1.5 Access to Site Site is well connected to all weather road from Pattamandri on the Thiruvottiyur

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Page 69: TANGEDCO - Bharat Heavy Electricals · 2015-07-17 · Seismic Zone III as per IS:1893-2002 1.5 Access to Site Site is well connected to all weather road from Pattamandri on the Thiruvottiyur

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Page 80: TANGEDCO - Bharat Heavy Electricals · 2015-07-17 · Seismic Zone III as per IS:1893-2002 1.5 Access to Site Site is well connected to all weather road from Pattamandri on the Thiruvottiyur

H.DRIVE

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Page 82: TANGEDCO - Bharat Heavy Electricals · 2015-07-17 · Seismic Zone III as per IS:1893-2002 1.5 Access to Site Site is well connected to all weather road from Pattamandri on the Thiruvottiyur
Page 83: TANGEDCO - Bharat Heavy Electricals · 2015-07-17 · Seismic Zone III as per IS:1893-2002 1.5 Access to Site Site is well connected to all weather road from Pattamandri on the Thiruvottiyur
Page 84: TANGEDCO - Bharat Heavy Electricals · 2015-07-17 · Seismic Zone III as per IS:1893-2002 1.5 Access to Site Site is well connected to all weather road from Pattamandri on the Thiruvottiyur
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J.APPLICABLE

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Page 95: TANGEDCO - Bharat Heavy Electricals · 2015-07-17 · Seismic Zone III as per IS:1893-2002 1.5 Access to Site Site is well connected to all weather road from Pattamandri on the Thiruvottiyur

TITLE : TECHNICAL SPECIFICATION SPEC. NO. PE-TS- 412-165-N001 FOR VOLUME : IIB

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Page 100: TANGEDCO - Bharat Heavy Electricals · 2015-07-17 · Seismic Zone III as per IS:1893-2002 1.5 Access to Site Site is well connected to all weather road from Pattamandri on the Thiruvottiyur
Page 101: TANGEDCO - Bharat Heavy Electricals · 2015-07-17 · Seismic Zone III as per IS:1893-2002 1.5 Access to Site Site is well connected to all weather road from Pattamandri on the Thiruvottiyur
Page 102: TANGEDCO - Bharat Heavy Electricals · 2015-07-17 · Seismic Zone III as per IS:1893-2002 1.5 Access to Site Site is well connected to all weather road from Pattamandri on the Thiruvottiyur
Page 103: TANGEDCO - Bharat Heavy Electricals · 2015-07-17 · Seismic Zone III as per IS:1893-2002 1.5 Access to Site Site is well connected to all weather road from Pattamandri on the Thiruvottiyur
Page 104: TANGEDCO - Bharat Heavy Electricals · 2015-07-17 · Seismic Zone III as per IS:1893-2002 1.5 Access to Site Site is well connected to all weather road from Pattamandri on the Thiruvottiyur
Page 105: TANGEDCO - Bharat Heavy Electricals · 2015-07-17 · Seismic Zone III as per IS:1893-2002 1.5 Access to Site Site is well connected to all weather road from Pattamandri on the Thiruvottiyur
Page 106: TANGEDCO - Bharat Heavy Electricals · 2015-07-17 · Seismic Zone III as per IS:1893-2002 1.5 Access to Site Site is well connected to all weather road from Pattamandri on the Thiruvottiyur

TITL

E :

DAT

A SH

EET

A F

ORSP

ECIF

ICAT

ION

NO

. PE

-TS-

412

-165

-N00

1

DEBR

IS F

ILTE

R (D

F)

VOLU

ME

:

II

B

BO

OK

: I

REV

. NO

.

00

D

ATE

-15.

06.2

015

Pag

e 1

of 1

1

S. N

o.D

ESC

RIP

TIO

N

UN

ITS

ENN

OR

E SE

Z ST

PP 2

X660

MW

1.0

G

EN

ER

AL

1.1

Type

of S

train

ers/

Filt

ers

-

Deb

ris F

ilter

1.2

No.

of S

train

ers/

Filt

ers

requ

ired

N

os.

Tota

l Fou

r (4)

Set

s. fo

r 2 U

nits

(2

set

s pe

r uni

t)

1.3

Inle

t con

nect

ion

(Nb)

mm

25

40 x

20

1.3

Out

let c

onne

ctio

n (N

b)

m

m

2540

x 2

0

1.4

Filte

r typ

e/ d

uty

-

On

line

/ con

tinuo

us

1.5

Loca

tion

-

Con

dens

er In

let (

Out

side

TG

Hal

l)

1.6

Liqu

id h

andl

ed

-

Sea

Wat

er a

s pe

r Ana

lysi

s A

ttach

ed a

long

with

pro

ject

info

rmat

ion

in s

ectio

n B

2.0

DES

IGN

DA

TA

2.1

Ope

ratin

g pr

essu

re

B

ar (g

) 2.

0 to

2.5

2.2

Des

ign

pres

sure

Kg/

cm2 )

5.

5 K

g/cm

2 (g)

& V

acuu

m 0

.1K

g/cm

2 (ab

s)

2.3

Des

ign

tem

pera

ture

Deg

. C

60

2.4

Flow

rate

thro

ugh

filte

r a)

Nor

mal

b)

Max

imum

3831

0 C

UB

.M/H

R

4597

2CU

B.M

/HR

Page 107: TANGEDCO - Bharat Heavy Electricals · 2015-07-17 · Seismic Zone III as per IS:1893-2002 1.5 Access to Site Site is well connected to all weather road from Pattamandri on the Thiruvottiyur

TITL

E :

DAT

A SH

EET

A F

ORSP

ECIF

ICAT

ION

NO

. PE

-TS-

412

-165

-N00

1

DEBR

IS F

ILTE

R (D

F)

VOLU

ME

:

II

B

BO

OK

: I

REV

. NO

.

00

D

ATE

-15.

06.2

015

Pag

e 2

of 1

1

S. N

o.D

ESC

RIP

TIO

N

UN

ITS

ENN

OR

E SE

Z ST

PP 2

X660

MW

2.5

Des

ign

diffe

rent

ial p

ress

ure

for f

ilter

se

ctio

n/ s

cree

n

Bar

(g)

1.5

(Min

.)

2.6

Type

of s

uspe

nded

mat

ter l

ikel

y to

en

ter t

he fi

lter

- Ty

pica

l deb

ris e

ncou

nter

ed in

clo

sed

circ

uit C

W s

yste

m w

ith C

oolin

g To

wer

2.7

Diff

eren

tial p

ress

ure

mea

surin

g sy

stem

set

pre

ssur

e �

For i

nitia

ting

flush

ing/

ba

ckw

ashi

ng

� Fo

r ala

rm/ a

nnun

ciat

ion

m

bar

m

bar

80

16

0

2.8

Filte

r sec

tion/

scr

een

perfo

ratio

n si

ze

m

m

5 m

m (M

ax)

2.

9 Fr

ee fl

ow a

rea

in th

e sc

reen

bas

ket

-

Atle

ast 1

20 %

of p

ipe

inle

t are

a

3.0

3.

1 P

ress

ure

drop

acr

oss

the

filte

r (i.e

. be

twee

n in

let a

nd o

utle

t con

nect

ion)

at

nor

mal

flow

-

a)

Cle

an c

ondi

tion

b) P

artia

lly (5

0%) c

hock

ed c

ondi

tion

mba

r

mba

r

Ref

er S

ectio

n –

C o

f spe

cific

atio

n

Not

to e

xcee

d 80

3.2

Deb

ris d

isch

arge

flow

dur

ing

flush

ing

perio

d

Cub

M/ H

r. N

ot to

exc

eed

2.5%

of t

otal

flow

rate

Page 108: TANGEDCO - Bharat Heavy Electricals · 2015-07-17 · Seismic Zone III as per IS:1893-2002 1.5 Access to Site Site is well connected to all weather road from Pattamandri on the Thiruvottiyur

TITL

E :

DAT

A SH

EET

A F

ORSP

ECIF

ICAT

ION

NO

. PE

-TS-

412

-165

-N00

1

DEBR

IS F

ILTE

R (D

F)

VOLU

ME

:

II

B

BO

OK

: I

REV

. NO

.

00

D

ATE

-15.

06.2

015

Pag

e 3

of 1

1

S. N

o.D

ESC

RIP

TIO

N

UN

ITS

ENN

OR

E SE

Z ST

PP 2

X660

MW

4.0

MA

TER

IALS

OF

CO

NST

RU

CTI

ON

4.1

Filte

r bod

y/ h

ousi

ng

-

Car

bon

Ste

el to

IS -2

062

Gr.B

. Rub

ber L

ined

(Min

. 5m

m th

ick)

in

side

(with

min

imum

hou

sing

thic

knes

s sa

me

as c

onne

ctin

g pi

pe

thic

knes

s)

4.

2 Fi

lter s

cree

n/ s

ectio

n

- D

uple

x S

S (U

NS

322

05/3

1803

)

4.3

Sha

ft

- D

uple

x S

S (U

NS

322

05/3

1803

)

4.4

Sup

porti

ng c

age

-

Dup

lex

SS

(UN

S 3

2205

/318

03)

4.5

Diff

eren

tial m

easu

ring

syst

em

-

Dup

lex

SS

(UN

S 3

2205

/318

03)

4.6

Flus

hing

/ bac

kwas

hing

uni

t

- D

uple

x S

S (U

NS

322

05/3

1803

)

4.7

Bac

kwas

h ro

tor s

hoes

- N

eopr

ene

4.8

Any

oth

er in

tern

al h

ardw

are

/pip

es

etc.

- D

uple

x S

S (U

NS

322

05/3

1803

)

4.

9 Fl

ushi

ng P

ump

(If A

pplic

able

)

a)

Cas

ing

-

Dup

lex

SS

(UN

S 3

2205

/318

03)

b)

Im

pelle

r -

Dup

lex

SS

(UN

S 3

2205

/318

03)

Page 109: TANGEDCO - Bharat Heavy Electricals · 2015-07-17 · Seismic Zone III as per IS:1893-2002 1.5 Access to Site Site is well connected to all weather road from Pattamandri on the Thiruvottiyur

TITL

E :

DAT

A SH

EET

A F

ORSP

ECIF

ICAT

ION

NO

. PE

-TS-

412

-165

-N00

1

DEBR

IS F

ILTE

R (D

F)

VOLU

ME

:

II

B

BO

OK

: I

REV

. NO

.

00

D

ATE

-15.

06.2

015

Pag

e 4

of 1

1

S. N

o.D

ESC

RIP

TIO

N

UN

ITS

ENN

OR

E SE

Z ST

PP 2

X660

MW

c)

Sha

ft -

AS

TM A

276

UN

S 3

1803

4.10

Val

ves

-

4.10

.1

Che

ck V

alve

s (6

5 N

B &

Abo

ve)

Fo

r siz

es 6

5 N

B a

nd a

bove

-Sw

ing

chec

k ty

pe o

r dua

l pla

te ty

pe.

a)

Bod

y &

Bon

net

D

uple

x S

S (U

NS

322

05/3

1803

), F

lang

ed E

nds

b)

D

isc

for C

heck

Val

ve

D

uple

x S

S (U

NS

322

05/3

1803

)

c)

Ste

m

D

uple

x S

S (U

NS

322

05/3

1803

) 4.

10.2

C

heck

Val

ves

(50

NB

& B

elow

)

For s

ize

50 N

B a

nd b

elow

-Pis

ton

type

a) B

ody

& B

onne

t

Dup

lex

SS

(UN

S 3

2205

/318

03),

Scr

ewed

End

s

b)

Dis

c fo

r Che

ck V

alve

Dup

lex

SS

(UN

S 3

2205

/318

03)

c)

Ste

m

D

uple

x S

S (U

NS

322

05/3

1803

)

4.10

.3

Gat

e/ G

lobe

Val

ves

50 N

b &

Bel

ow

Bod

y &

Bon

net

D

uple

x S

S (U

NS

322

05/3

1803

), S

crew

ed E

nds

4.10

.4

� G

ate

Val

ves

(upt

o 20

0 N

b) &

BFV

(A

bove

200

Nb)

Bod

y &

Dis

c

Dup

lex

SS

(UN

S 3

2205

/318

03)

Sha

ft

Dup

lex

SS

(UN

S 3

2205

/318

03)

Ste

m

D

uple

x S

S

Sea

ling,

Ret

aini

ng s

egm

ent &

in

tern

als

D

uple

x S

S (U

NS

322

05/3

1803

)

Bea

rings

S

elf l

ubric

atin

g / S

eal L

ubric

ated

Page 110: TANGEDCO - Bharat Heavy Electricals · 2015-07-17 · Seismic Zone III as per IS:1893-2002 1.5 Access to Site Site is well connected to all weather road from Pattamandri on the Thiruvottiyur

TITL

E :

DAT

A SH

EET

A F

ORSP

ECIF

ICAT

ION

NO

. PE

-TS-

412

-165

-N00

1

DEBR

IS F

ILTE

R (D

F)

VOLU

ME

:

II

B

BO

OK

: I

REV

. NO

.

00

D

ATE

-15.

06.2

015

Pag

e 5

of 1

1

S. N

o.D

ESC

RIP

TIO

N

UN

ITS

ENN

OR

E SE

Z ST

PP 2

X660

MW

Com

pani

on F

lang

e D

uple

x S

S (U

NS

322

05/3

1803

) �

C

) Bal

l val

ves

i) B

ody

ii) B

all

iii) S

tem

D

uple

x S

S (U

NS

322

05/3

1803

)

D

uple

x S

S (U

NS

322

05/3

1803

)

Dup

lex

SS

(UN

S 3

2205

/318

03)

4.11

In

terc

onne

ctin

g P

ipin

g (In

Pur

chas

er’s

Sco

pe)

a)

U

pto

150

Nb

� D

UP

LEX

SS

(AS

PE

R S

CH

40S

FO

R P

IPE

UP

TO 5

0 N

B &

S

CH

10S

FO

R P

IPE

SIZ

E A

BO

VE

50

NB

)

b)

20

0 N

b an

d ab

ove

a)

PIP

ING

200

NB

AN

D A

BO

VE

SH

ALL

BE

CA

RB

ON

STE

EL

AS

P

ER

IS 3

589

FAB

RIC

ATE

D F

RO

M IS

206

2 P

LATE

S

INTE

RN

ALL

Y L

INE

D W

ITH

CO

RR

OC

OA

T O

R P

OLY

UR

EA

C

OA

TIN

G IN

SID

E O

F 15

00 M

ICR

ON

S D

FT.

4.

12

In

spec

tion

hole

-

Req

uire

d, 6

00 N

B

5.

0 C

OU

NTE

R F

LAN

GE

S

5.1

CO

UN

TER

FLA

NG

ES fo

r D

EBR

IS F

ILTE

R

In P

urch

aser

’s S

cope

a)

Fl

ange

s C

arbo

n S

teel

to IS

-206

2 G

r.B. o

r eq(

Inte

rnal

ly L

ined

with

Cor

roC

oat o

r P

olyU

rea)

or D

uple

x S

S, f

or th

ickn

ess,

dril

ling

etc

refe

r Ann

exur

e II

in

sect

ion

C1

(In P

urch

aser

’s S

cope

)

Page 111: TANGEDCO - Bharat Heavy Electricals · 2015-07-17 · Seismic Zone III as per IS:1893-2002 1.5 Access to Site Site is well connected to all weather road from Pattamandri on the Thiruvottiyur

TITL

E :

DAT

A SH

EET

A F

ORSP

ECIF

ICAT

ION

NO

. PE

-TS-

412

-165

-N00

1

DEBR

IS F

ILTE

R (D

F)

VOLU

ME

:

II

B

BO

OK

: I

REV

. NO

.

00

D

ATE

-15.

06.2

015

Pag

e 6

of 1

1

S. N

o.D

ESC

RIP

TIO

N

UN

ITS

ENN

OR

E SE

Z ST

PP 2

X660

MW

b)

Fa

sten

ers

A 1

93 &

A 1

94

(In B

idde

r’s s

cope

).

c)

Gas

kets

M

in 4

mm

thic

k ru

bber

(In

Bid

der’s

sco

pe).

5.

2 O

THER

CO

UN

TER

FLA

NG

ES (f

or

inte

rcon

nect

ing

pipi

ng a

t Val

ves

and

othe

r Eq

uipm

ents

in B

idde

r’s S

cope

)

In B

idde

r's s

cope

a)

Fla

nges

D

uple

x S

S

b)

Fas

tene

rs

SS

316

L

c) G

aske

ts

Min

4 m

m th

ick

rubb

er

6.0

Mat

eria

l of O

ther

com

pone

nts

not

spec

ified

abo

ve

Sui

tabl

e fo

r int

ende

d du

ty a

nd s

hall

be s

ubje

ct to

Pur

chas

ers

appr

oval

du

ring

deta

iled

engg

. In

the

even

t of o

rder

. 7.

0 PA

INTI

NG

7.1

Ext

erna

l Sur

face

-

a)

Sur

face

pre

para

tion

-

SA

- 2.

5 of

Sw

edis

h S

pecn

. SIS

-05-

59-0

0-19

67

/ By

San

d B

last

ing

b)

Prim

er

Two

(2) c

oats

of E

poxy

prim

er c

oats

with

min

imum

thic

knes

s of

35

mic

rons

dft

of e

ach

coat

.

c) I

nter

med

iate

Epo

xy b

ased

TiO

2 pi

gmen

ted

coat

d)

Fin

al p

aint

Tw

o (2

) coa

ts o

f Hig

h bu

ild E

poxy

pai

nt w

ith m

inim

um th

ickn

ess

of 3

5 m

icro

ns d

ft of

eac

h co

at.

7.2

Inte

rnal

Sur

face

(for A

pplic

atio

ns n

ot

in D

irect

Con

tact

with

Sea

Wat

er

a)

Sur

face

pre

para

tion

SA

- 2.

5 of

Sw

edis

h S

pecn

. SIS

-05-

59-0

0-19

67

/ By

San

d B

last

ing

b)

Prim

er

Two

coat

of E

poxy

Res

in b

ased

Zin

c P

hosp

hate

epo

xy p

rimer

Page 112: TANGEDCO - Bharat Heavy Electricals · 2015-07-17 · Seismic Zone III as per IS:1893-2002 1.5 Access to Site Site is well connected to all weather road from Pattamandri on the Thiruvottiyur

TITL

E :

DAT

A SH

EET

A F

ORSP

ECIF

ICAT

ION

NO

. PE

-TS-

412

-165

-N00

1

DEBR

IS F

ILTE

R (D

F)

VOLU

ME

:

II

B

BO

OK

: I

REV

. NO

.

00

D

ATE

-15.

06.2

015

Pag

e 7

of 1

1

S. N

o.D

ESC

RIP

TIO

N

UN

ITS

ENN

OR

E SE

Z ST

PP 2

X660

MW

c)

Fin

al p

aint

Ade

quat

e no

. of c

oats

of c

oal

tar e

poxy

pai

nt to

ach

ieve

tota

l dry

film

th

ickn

ess

of 2

00 to

250

mic

rons

8.

0 SH

OP

TEST

8.1

Hyd

rost

atic

test

a)

Te

st P

ress

ure

bar (

g)

1.5

times

des

ign

pres

sure

b)

Te

st d

urat

ion

m

in.

30

8.2

Leak

age

test

a)

Te

st P

ress

ure

bar (

g)

Des

ign

pres

sure

b)

Tes

t dur

atio

n

min

. 30

9.0

Cat

hodi

c pr

otec

tion

YE

S (A

long

with

Sac

rific

ial t

ype

anod

ic p

rote

ctio

n by

Bid

der)

10.0

Fl

ow s

traig

htne

r for

stre

amlin

ing

the

CW

flow

in D

F

If re

quire

d as

per

bid

der’s

des

ign

– th

e sa

me

to b

e in

corp

orat

ed b

y bi

dder

in it

s co

nstru

ctio

nal f

eatu

re.

11.0

P

erfo

rman

ce G

uara

ntee

& B

id

Eva

luat

ion

11.1

P

erfo

rman

ce P

aram

eter

s to

be

Gua

rant

eed

P

ress

ure

drop

DF

A

s pe

r Gua

rant

ee s

ched

ule

of b

idde

r 11

.2

Bid

eva

luat

ion

Crit

eria

& L

iqui

date

d da

mag

es

A

s pe

r cla

use

no 8

.1.2

of S

ectio

n C

1

11.3

B

id e

valu

atio

n ra

te

@

Rs

48.8

Lac

s pe

r 0.1

MW

C p

r. D

rop

acro

ss e

ach

DF

11.4

Li

quid

ated

dam

ages

Twic

e th

e bi

d ev

alua

tion

rate

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TITL

E :

DAT

A SH

EET

A F

ORSP

ECIF

ICAT

ION

NO

. PE

-TS-

412

-165

-N00

1

DEBR

IS F

ILTE

R (D

F)

VOLU

ME

:

II

B

BO

OK

: I

REV

. NO

.

00

D

ATE

-15.

06.2

015

Pag

e 8

of 1

1

S. N

o.D

ESC

RIP

TIO

N

UN

ITS

ENN

OR

E SE

Z ST

PP 2

X660

MW

12.0

W

heth

er

auto

mat

ic

flush

ing/

ba

ck-

was

hing

ope

ratio

n ef

fect

ed b

y th

e fo

llow

ing

: i.

Diff

eren

tial p

ress

ure

ii.

Adj

usta

ble

timer

iii

. P

ush

butto

n

Yes

Yes

Y

es

13.0

W

heth

er

prov

isio

n fo

r m

anua

l flu

shin

g /

back

was

hing

ope

ratio

n is

m

ade

in t

he e

vent

of

cont

rol s

yste

m

failu

re.

Y

es

14.0

Whe

ther

bu

ilt

in

flush

ing

arra

ngem

ent

com

plet

e w

ith f

lush

ing

pum

p, v

alve

s, a

nd a

ssoc

iate

d pi

ping

, is

pro

vide

d.

Y

ES

(If r

equi

red)

15.0

M

anda

tory

Spa

re to

be

supp

lied

unde

r thi

s sp

ecifi

catio

n by

Bid

der:

1 41

5 V

Mot

or

1.1

Term

inal

pla

tes

Nos

. 10

Nos

. eac

h fo

r sm

all m

otor

s up

to 3

0 kW

& 4

Nos

. eac

h fo

r mor

e th

an 3

0 kW

1.

2 H

eate

rs

Set

2

Set

s 1.

3 G

reas

ing

arra

ngem

ents

S

et

4 se

ts e

ach

type

of m

otor

1.

4 M

otor

of e

ach

type

and

ratin

g N

os.

1 N

o.

1.5

Bea

rings

(DE

and

ND

E) f

or e

ach

type

and

ratin

g of

mot

or

Set

4

Set

s

2 C

&I S

pare

s

Page 114: TANGEDCO - Bharat Heavy Electricals · 2015-07-17 · Seismic Zone III as per IS:1893-2002 1.5 Access to Site Site is well connected to all weather road from Pattamandri on the Thiruvottiyur

TITL

E :

DAT

A SH

EET

A F

ORSP

ECIF

ICAT

ION

NO

. PE

-TS-

412

-165

-N00

1

DEBR

IS F

ILTE

R (D

F)

VOLU

ME

:

II

B

BO

OK

: I

REV

. NO

.

00

D

ATE

-15.

06.2

015

Pag

e 9

of 1

1

S. N

o.D

ESC

RIP

TIO

N

UN

ITS

ENN

OR

E SE

Z ST

PP 2

X660

MW

2.1

Eac

h ty

pe o

f lam

ps, P

Bs,

ILP

Bs,

fu

se, M

CB

, MC

CB

use

d in

the

equi

pmen

t/sys

tem

.

Nos

. 20

% o

f ins

talle

d of

eac

h ty

pe

2.2

Indi

cato

rs, r

ecor

ders

and

met

ers

offe

red

from

eac

h m

odel

for t

he

proj

ect.

Thes

e in

stru

men

ts s

hall

be s

uppl

ied

with

thre

e se

ts o

f bl

ank

scal

es.

Nos

. 10

% o

f Ins

talle

d of

eac

h ty

pe/M

odel

or a

min

imum

of o

ne n

umbe

r fo

r eac

h m

odel

and

type

, whi

chev

er is

mor

e

2.3

For s

kid

mou

nted

inst

rum

ents

N

os.

10 %

of t

otal

no.

of i

nstru

men

ts fo

r eac

h ty

pe a

nd M

odel

or a

m

inim

um o

f one

num

ber f

or e

ach

mod

el a

nd ty

pe, w

hich

ever

is

mor

e 2.

4 Te

mpe

ratu

re, T

rans

mitt

ers

and

Ele

ctro

nic

Tran

smitt

ers

(For

P

ress

ure,

DP

, Tem

p, F

low

, Le

vel),

Tem

pera

ture

, Pre

ssur

e,

Flow

& L

evel

Sw

itch,

saf

ety

switc

hes,

Gau

ges,

met

ers,

Tr

ansd

ucer

or a

ny o

ther

in

stru

men

t etc

.

Nos

. 10

% o

f tot

al n

umbe

r of I

nstru

men

ts/tr

ansd

ucer

s of

fere

d fo

r eac

h m

odel

and

type

for t

he p

roje

ct

or a

min

imum

of o

ne n

umbe

r, w

hich

ever

is m

ore.

2.5

Hoo

ters

, Buz

zers

, Coo

ling

fans

of

each

type

. N

os.

Ten

(10)

per

cent

or 2

no.

(Whi

chev

er is

mor

e)

2.6

Inte

rface

cab

les

Set

2

sets

of e

ach

type

/mod

el

2.7

Pow

er s

uppl

y m

odul

es (A

C to

DC

C

onve

rtors

) N

os.

10%

or F

ive

no. (

Whi

chev

er is

mor

e) o

f eac

h ty

pe/m

odel

2.8

Rel

ay b

ased

Con

trol P

anel

s

2.

8.1

LED

s fo

r ind

icat

ing

light

s N

os.

10%

of q

ty in

stal

led.

2.

8.2

Con

trol c

ircui

t fus

es/M

CB

/MC

CB

/ S

emic

ondu

ctor

Fus

es

Nos

. 30

0% o

f ins

talle

d of

eac

h ty

pe, c

urre

nt ra

ting.

2.8.

3 R

elay

s m

odul

es &

con

tact

ors.

N

os.

20%

spa

re o

f qty

Inst

alle

d of

eac

h ty

pe &

ratin

g.

Page 115: TANGEDCO - Bharat Heavy Electricals · 2015-07-17 · Seismic Zone III as per IS:1893-2002 1.5 Access to Site Site is well connected to all weather road from Pattamandri on the Thiruvottiyur

TITL

E :

DAT

A SH

EET

A F

ORSP

ECIF

ICAT

ION

NO

. PE

-TS-

412

-165

-N00

1

DEBR

IS F

ILTE

R (D

F)

VOLU

ME

:

II

B

BO

OK

: I

REV

. NO

.

00

D

ATE

-15.

06.2

015

Pag

e 10

of 1

1

S. N

o.D

ESC

RIP

TIO

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UN

ITS

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OR

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rm A

nnun

ciat

ion

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tem

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9.1

logi

c m

odul

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roup

car

d m

odul

es, p

ower

sup

ply

mod

ules

, H

oote

rs a

nd a

ny o

ther

ele

ctro

nic

mod

ule.

Nos

. 20

% s

pare

s of

eac

h ty

pe in

stal

led

2.9.

2 un

-eng

rave

d w

indo

w b

oxes

co

mpl

ete

with

LE

D e

tc.

Nos

. 5%

spa

res

of e

ach

type

inst

alle

d

2.9.

3 LE

Ds

for a

nnun

ciat

ion

faci

a w

indo

ws

and

LED

s bo

x as

sem

blie

s of

fere

d fo

r the

pro

ject

Nos

. 20

% o

f qty

inst

alle

d

2.9.

4 A

nnun

ciat

or h

oote

r N

os.

One

(1) N

o. o

f eac

h ty

pe

2.10

E

rect

ion

Har

dwar

e

2.

10.1

In

stru

men

t val

ves

Nos

. Te

n (1

0) p

erce

nt o

f eac

h ty

pe &

Siz

e in

stal

led

2.10

.2

Con

dens

ate

pots

of e

ach

type

&

Siz

e in

stal

led

Nos

. Te

n (1

0) p

erce

nt o

f tot

al n

umbe

r of I

nsta

lled

or fo

ur n

umbe

rs

whi

chev

er is

hig

her .

2.

10.3

M

anifo

ld

Nos

. Te

n (1

0) p

erce

nt o

f eac

h ty

pe &

Siz

e in

stal

led

2.10

.4

Fitti

ngs

Nos

. Te

n (1

0) p

erce

nt o

f eac

h ty

pe &

Siz

e in

stal

led

N

otes

for M

anda

tory

Spa

res:

1.

Fo

r C&

I Man

dato

ry S

pare

not

cov

ered

abo

ve: B

idde

r to

supp

ly 1

0% o

r 1 n

o. (w

hich

ever

is m

ore)

of e

ach

type

of

sens

or/in

stru

men

t, in

stru

men

tatio

n/m

echa

nica

l fitt

ings

etc

for a

ny o

ther

ele

ctro

nic

syst

em, f

eede

r con

trol c

abin

ets,

hy

dras

tep

(EW

LI),

Vib

ratio

n M

onito

ring

Sys

tem

, CC

TV, C

&I L

ab In

stru

men

ts, O

n lin

e C

arbo

n in

Ash

ana

lyse

r sys

tem

, O

n lin

e C

oal m

ass

flow

/spe

ed m

easu

rem

ent s

yste

m, O

n lin

e se

cond

ary

air f

low

mea

sure

men

t sys

tem

Mas

s Fl

ow m

eter

, S

olid

flow

met

er, 3

D A

cous

tic ty

pe le

vel t

rans

mitt

ers,

Nuc

leon

ic &

non

nuc

leon

ic d

ensi

ty tr

ansm

itter

etc

. 2.

A

ll S

pare

s m

entio

ned

at S

.No.

1 a

re fo

r Tw

o 66

0 M

W u

nits

. 3.

A

ll S

pare

s m

entio

ned

at S

.No.

2 a

re p

er 6

60 M

W u

nit b

asis

. 4.

Spa

res

not a

pplic

able

for t

he P

acka

ge to

be

spec

ifica

lly q

uote

d as

“NO

T A

PP

LIC

AB

LE”.

Page 116: TANGEDCO - Bharat Heavy Electricals · 2015-07-17 · Seismic Zone III as per IS:1893-2002 1.5 Access to Site Site is well connected to all weather road from Pattamandri on the Thiruvottiyur

TITL

E :

DAT

A SH

EET

A F

ORSP

ECIF

ICAT

ION

NO

. PE

-TS-

412

-165

-N00

1

DEBR

IS F

ILTE

R (D

F)

VOLU

ME

:

II

B

BO

OK

: I

REV

. NO

.

00

D

ATE

-15.

06.2

015

Pag

e 11

of 1

1

S. N

o.D

ESC

RIP

TIO

N

UN

ITS

ENN

OR

E SE

Z ST

PP 2

X660

MW

NO

TE

S: T

hick

ness

of H

ousi

ng P

ipe

shal

l be

as p

er ta

ble

belo

w

NB�

Out

side

Dia

met

er (O

D)

Thi

ckne

ss60

0�61

08�

700�

711.

210�

800�

813

10�

900�

914

10�

1000�

1016

10�

1100�

1118

10�

1200�

1219

10�

1400�

1422

12�

1600�

1626

16�

1800�

1829

16�

2500�

2540

20�

2600�

2640

20�

2700�

2740

20�

2800�

2840

20�

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Page 119: TANGEDCO - Bharat Heavy Electricals · 2015-07-17 · Seismic Zone III as per IS:1893-2002 1.5 Access to Site Site is well connected to all weather road from Pattamandri on the Thiruvottiyur
Page 120: TANGEDCO - Bharat Heavy Electricals · 2015-07-17 · Seismic Zone III as per IS:1893-2002 1.5 Access to Site Site is well connected to all weather road from Pattamandri on the Thiruvottiyur
Page 121: TANGEDCO - Bharat Heavy Electricals · 2015-07-17 · Seismic Zone III as per IS:1893-2002 1.5 Access to Site Site is well connected to all weather road from Pattamandri on the Thiruvottiyur
Page 122: TANGEDCO - Bharat Heavy Electricals · 2015-07-17 · Seismic Zone III as per IS:1893-2002 1.5 Access to Site Site is well connected to all weather road from Pattamandri on the Thiruvottiyur
Page 123: TANGEDCO - Bharat Heavy Electricals · 2015-07-17 · Seismic Zone III as per IS:1893-2002 1.5 Access to Site Site is well connected to all weather road from Pattamandri on the Thiruvottiyur
Page 124: TANGEDCO - Bharat Heavy Electricals · 2015-07-17 · Seismic Zone III as per IS:1893-2002 1.5 Access to Site Site is well connected to all weather road from Pattamandri on the Thiruvottiyur
Page 125: TANGEDCO - Bharat Heavy Electricals · 2015-07-17 · Seismic Zone III as per IS:1893-2002 1.5 Access to Site Site is well connected to all weather road from Pattamandri on the Thiruvottiyur
Page 126: TANGEDCO - Bharat Heavy Electricals · 2015-07-17 · Seismic Zone III as per IS:1893-2002 1.5 Access to Site Site is well connected to all weather road from Pattamandri on the Thiruvottiyur
Page 127: TANGEDCO - Bharat Heavy Electricals · 2015-07-17 · Seismic Zone III as per IS:1893-2002 1.5 Access to Site Site is well connected to all weather road from Pattamandri on the Thiruvottiyur
Page 128: TANGEDCO - Bharat Heavy Electricals · 2015-07-17 · Seismic Zone III as per IS:1893-2002 1.5 Access to Site Site is well connected to all weather road from Pattamandri on the Thiruvottiyur
Page 129: TANGEDCO - Bharat Heavy Electricals · 2015-07-17 · Seismic Zone III as per IS:1893-2002 1.5 Access to Site Site is well connected to all weather road from Pattamandri on the Thiruvottiyur

TITLE : TECHNICAL SPECIFICATION SPEC. NO. PE-TS- 412-165-N001 FOR VOLUME : IIB

DEBRIS FILTER (DF) SECTION : D REV. NO. 0 DATE :

15.06.2015 SHEET 1 of 1

SECTION D2

STANDARD TECHNICAL SPECIFICATION FOR

ELECTRICAL SYSTEMS

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SECTION : D

TITLE : GENERAL TECHNICAL REQUIREMENTs

FOR

LV MOTORS

SPECIFICATION NO. PE-SS-999-506-E101 VOLUME NO. : II-B

REV NO. : 00 DATE : 29/08/2005SHEET : 1 OF 1

GENERAL TECHNICAL REQUIREMENTS

FOR

LV MOTORS

SPECIFICATION NO.: PE-SS-999-506-E101 Rev 00

Page 131: TANGEDCO - Bharat Heavy Electricals · 2015-07-17 · Seismic Zone III as per IS:1893-2002 1.5 Access to Site Site is well connected to all weather road from Pattamandri on the Thiruvottiyur

TITLE : GENERAL TECHNICAL REQUIREMENTs

FOR

LV MOTORS

SPECIFICATION NO. PE-SS-999-506-E101 VOLUME NO. : II-BSECTION : DREV NO. : 00 DATE : 29/08/2005SHEET : 1 OF 4

1.0 INTENT OF SPECIFIATION

The specification covers the design, materials, constructional features, manufacture, inspection and testing at manufacturer’s work, and packing of Low voltage (LV) squirrel cage induction motors along with all accessories for driving auxiliaries in thermal power station.

Motors having a voltage rating of below 1000V are referred to as low voltage (LV) motors.

2.0 CODES AND STANDARDS

Motors shall fully comply with latest edition, including all amendments and revision, of following codes and standards:

IS:325 Three phase Induction motors IS : 900 Code of practice for installation and maintenance of induction motors IS: 996 Single phase small AC and universal motors IS: 4722 Rotating Electrical machines IS: 4691 Degree of Protection provided by enclosures for rotating electrical machines IS: 4728 Terminal marking and direction of rotation rotating electrical machines IS: 1231 Dimensions of three phase foot mounted induction motors IS: 8789 Values of performance characteristics for three phase induction motors IS: 13555 Guide for selection and application of 3-phase A.C. induction motors for

different types of driven equipment IS: 2148 Flame proof enclosures for electrical appliance IS: 5571 Guide for selection of electrical equipment for hazardous areas IS: 12824 Type of duty and classes of rating assigned IS: 12802 Temperature rise measurement for rotating electrical machnines IS: 12065 Permissible limits of noise level for rotating electrical machines IS: 12075 Mechanical vibration of rotating electrical machines

In case of imported motors, motors as per IEC-34 shall also be acceptable.

3.0 DESIGN REQUIREMENTS

3.1 Motors and accessories shall be designed to operate satisfactorily under conditions specified in data sheet-A and Project Information, including voltage & frequency variation of supply system as defined in Data sheet-A

3.2 Motors shall be continuously rated at the design ambient temperature specified in Data Sheet-A and other site conditions specified under Project Information Motor ratings shall have at least a 15% margin over the continuous maximum demand of the driven equipment, under entire operating range including voltage & frequency variation specified above.

3.3 Starting Requirements

3.3.1 Motor characteristics such as speed, starting torque, break away torque and starting time shall be properly co-ordinated with the requirements of driven equipment. The accelerating torque at any speed with the minimum starting voltage shall be at least 10% higher than that of the driven equipment.

3.3.2 Motors shall be capable of starting and accelerating the load with direct on line starting without exceeding acceptable winding temperature.

Page 132: TANGEDCO - Bharat Heavy Electricals · 2015-07-17 · Seismic Zone III as per IS:1893-2002 1.5 Access to Site Site is well connected to all weather road from Pattamandri on the Thiruvottiyur

TITLE : GENERAL TECHNICAL REQUIREMENTs

FOR

LV MOTORS

SPECIFICATION NO. PE-SS-999-506-E101 VOLUME NO. : II-BSECTION : DREV NO. : 00 DATE : 29/08/2005SHEET : 2 OF 4

The limiting value of voltage at rated frequency under which a motor will successfully start and accelerate to rated speed with load shall be taken to be a constant value as per Data Sheet - A during the starting period of motors.

3.3.3 The following frequency of starts shall apply

i) Two starts in succession with the motor being initially at a temperature not exceeding the rated load temperature.

ii) Three equally spread starts in an hour the motor being initially at a temperature not exceeding the rated load operating temperature. (not to be repeated in the second successive hour)

iii) Motors for coal conveyor and coal crusher application shall be suitable for three consecutive hot starts followed by one hour interval with maximum twenty starts per day and shall be suitable for mimimum 20,000 starts during the life time of the motor

3.4 Running Requirements

3.4.1 Motors shall run satisfactorily at a supply voltage of 75% of rated voltage for 5 minutes with full load without injurious heating to the motor.

3.4.2 Motor shall not stall due to voltage dip in the system causing momentary drop in voltage upto 70% of the rated voltage for duration of 2 secs.

3.5 Stress During bus Transfer

3.5.1 Motors shall withstand the voltage, heavy inrush transient current, mechanical and torque stress developed due to the application of 150% of the rated voltage for at least 1 sec. caused due to vector difference between the motor residual voltage and the incoming supply voltage during occasional auto bus transfer.

3.5.2 Motor and driven equipment shafts shall be adequately sized to satisfactorily withstand transient torque under above condition.

3.6 Maximum noise level measured at distance of 1.0 metres from the outline of motor shall not exceed the values specified in IS 12065.

3.7 The max. vibration velocity or double amplitude of motors vibration as measured at motor bearings shall be within the limits specified in IS: 12075.

4.0 CONSTRUCTIONAL FEATURES

4.1 Indoor motors shall conform to degree of protection IP: 54 as per IS: 4691. Outdoor or semi-indoor motors shall conform to degree of protection IP: 55 as per IS: 4691and shall be of weather-proof construction. Outdoor motors shall be installed under a suitable canopy

4.2 Motors upto 160KW shall have Totally Enclosed Fan Cooled (TEFC) enclosures, the method of cooling conforming to IC-0141 or IC-0151 of IS: 6362.

Motors rated above 160 KW shall be Closed Air Circuit Air (CACA) cooled

4.3 Motors shall be designed with cooling fans suitable for both directions of rotation.

Page 133: TANGEDCO - Bharat Heavy Electricals · 2015-07-17 · Seismic Zone III as per IS:1893-2002 1.5 Access to Site Site is well connected to all weather road from Pattamandri on the Thiruvottiyur

TITLE : GENERAL TECHNICAL REQUIREMENTs

FOR

LV MOTORS

SPECIFICATION NO. PE-SS-999-506-E101 VOLUME NO. : II-BSECTION : DREV NO. : 00 DATE : 29/08/2005SHEET : 3 OF 4

4.4. Motors shall not be provided with any electric or pneumatic operated external fan for cooling the motors.

4.5 Frames shall be designed to avoid collection of moisture and all enclosures shall be provided with facility for drainage at the lowest point.

4.6 In case Class ‘F’ insulation is provided for LV motors, temperature rise shall be limited to the limits applicable to Class ‘B’ insulation. In case of continuous operation at extreme voltage limits the temperature limits specified in table-1 of IS:325 shall not exceed by more than 10�C.

4.7 Terminals and Terminal Boxes

4.7.1 Terminals, terminal leads, terminal boxes, windings tails and associated equipment shall be suitable for connection to a supply system having a short circuit level, specified in the Data Sheet-A.

Unless otherwise stated in Data Sheet-A, motors of rating 110 kW and above will be controlled by circuit breaker and below 110 kW by switch fuse-contactor. The terminal box of motors shall be designed for the fault current mentioned in data sheet “A”.

4.7.2 unless otherwise specified or approved, phase terminal boxes of horizontal motors shall be positioned on the left hand side of the motor when viewed from the non-driving end.

4.7.3 Connections shall be such that when the supply leads R, Y & B are connected to motor terminals A B & C or U, V & W respectively, motor shall rotate in an anticlockwise direction when viewed from the non-driving end. Where such motors require clockwise rotation, the supply leads R, Y, B will be connected to motor terminals A, C, B or U W & V respectively.

4.7.4 Permanently attached diagram and instruction plate made preferably of stainless steel shall be mounted inside terminal box cover giving the connection diagram for the desired direction of rotation and reverse rotation.

4.7.5 Motor terminals and terminal leads shall be fully insulated with no bar live parts. Adequate space shall be available inside the terminal box so that no difficulty is encountered for terminating the cable specified in Data Sheet-A.

4.7.6 Degree of protection for terminal boxes shall be IP 55 as per IS 4691.

4.7.7 Separate terminal boxes shall be provided for space heaters.. If this is not possible in case of LV motors, the space heater terminals shall be adequately segregated from the main terminals in the main terminal box. Detachable gland plates with double compression brass glands shall be provided in terminal boxes.

4.7.8. Phase terminal boxes shall be suitable for 360 degree of rotation in steps of 90 degree for LV motors.

4.7.9 Cable glands and cable lugs as per cable sizes specified in Data Sheet-A shall be included. Cable lugs shall be of tinned Copper, crimping type.

4.8 Two separate earthing terminals suitable for connecting G.I. or MS strip grounding conductor of size given in Data Sheet-A shall be provided on opposite sides of motor frame. Each terminal box shall have a grounding terminal.

4.9 General

Page 134: TANGEDCO - Bharat Heavy Electricals · 2015-07-17 · Seismic Zone III as per IS:1893-2002 1.5 Access to Site Site is well connected to all weather road from Pattamandri on the Thiruvottiyur

TITLE : GENERAL TECHNICAL REQUIREMENTs

FOR

LV MOTORS

SPECIFICATION NO. PE-SS-999-506-E101 VOLUME NO. : II-BSECTION : DREV NO. : 00 DATE : 29/08/2005SHEET : 4 OF 4

4.9.1 Motors provided for similar drives shall be interchangeable.

4.9.2 Suitable foundation bolts are to be supplied alongwith the motors.

4.9.3 Motors shall be provided with eye bolts, or other means to facilitate safe lifting if the weight is 20Kgs. and above.

4.9.4 Necessary fitments and accessories shall be provided on motors in accordance with the latest Indian Electricity rules 1956.

4.9.5 All motors rated above 30 kW shall be provided with space heaters to maintain the motor internal air temperature above the dew point. Unless otherwise specified, space heaters shall be suitable for a supply of 240V AC, single phase, 50 Hz.

4.9.6 Name plate with all particulars as per IS: 325 shall be provided

4.9.7 Unless otherwise specified, the colour of finish shall be grey to Shade No. 631 and 632 as per IS:5 for motors installed indoor and outdoor respectively. The paint shall be epoxy based and shall be suitable for withstanding specified site conditions.

5.0 INSPECTION AND TESTING

5.1 All materials, components and equipments covered under this specification shall be procured, manufactured, as per the BHEL standard quality plan No. PED-506-00-Q-006/0 and PED-506-00-Q-007/2 enclosed with this specification and which shall be complied.

5.2 LV motors of type-tested design shall be provided. Valid type test reports not more than 5 year shall be furnished. In the absence of these, type tests shall have to be conducted by manufacturer without any commercial implication to purchaser.

5.3 All motors shall be subjected to routine tests as per IS: 325 and as per BHEL standard quality plan.

5.4 Motors shall also be subjected to additional tests, if any, as mentioned in Data Sheet A.

6.0 DRAWINGS TO BE SUBMITTED AFTER AWARD OF CONTRACT

a) OGA drawing showing the position of terminal boxes, earthing connections etc. b) Arrangement drawing of terminal boxes. c) Characteristic curves: (To be given for motor above 55 kW unless otherwise specified in Data Sheet).

i) Current vs. time at rated voltage and minimum starting voltage. ii) Speed vs. time at rated voltage and minimum starting voltage.

iii) Torque vs. speed at rated voltage and minimum voltage. For the motors with solid coupling the above curves i), ii), iii) to be furnished for the motors coupled with driven equipment. In case motor is coupled with mechanical equipment by fluid coupling, the above curves shall be furnished with and without coupling.

iv) Thermal withstand curve under hot and cold conditions at rated voltage and max. permissible voltage.

Page 135: TANGEDCO - Bharat Heavy Electricals · 2015-07-17 · Seismic Zone III as per IS:1893-2002 1.5 Access to Site Site is well connected to all weather road from Pattamandri on the Thiruvottiyur

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Page 136: TANGEDCO - Bharat Heavy Electricals · 2015-07-17 · Seismic Zone III as per IS:1893-2002 1.5 Access to Site Site is well connected to all weather road from Pattamandri on the Thiruvottiyur

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Page 137: TANGEDCO - Bharat Heavy Electricals · 2015-07-17 · Seismic Zone III as per IS:1893-2002 1.5 Access to Site Site is well connected to all weather road from Pattamandri on the Thiruvottiyur

TITLE : TECHNICAL SPECIFICATION SPEC. NO. PE-TS- 412-165-N001 FOR VOLUME : IIB

DEBRIS FILTER (DF) SECTION : D REV. NO. 0 DATE :

15.06.2015 SHEET 1 of 1

SECTION D3

STANDARD TECHNICAL SPECIFICATION FOR

C&I SYSTEMS

NOT APPLICABLE