PART 1B Tech Specification

Tidel - Coimbatore Tech. Spec

C.R.Narayana Rao 1 DG Set Architects & Engineers

TIDEL PARK COIMBATORE LTD.

CONSTRUCTION OF INFORMATION TECHNOLOGY PARK BUILDING COMPLEX AT COIMBATORE, TAMILNADU

DESIGN, SUPPLY, INSTALLATION, TESTING AND COMMISSIONING,

OPERATION MAINTENANCE OF DIESEL GENERATOR SETS WITH AMF FACILITY, SCRUBBER, EXHAUST CHIMNEY, UNDERGROUND DIESEL STORAGE TANK, EXHAUST PIPING, ACOUSTIC ROOM INSULATION,

VENTILATION SYSTEM, EARTHING AND CONNECTED WORKS

INDEX S.No. Description Page No.

I. Technical Specification for Diesel Generator Set

II. Technical Specification for 2000 KVA Diesel Engine Radiator Cooled Type

IV. Technical Specification for Control Panels

V. Technical Specification for Relays

VI. Technical Specification for Earthing

VII. Technical Specification for Ventilation System

VIII. Technical Specification for Air Pollution Control System

IX. Technical Specification for Treatment and Disposal of Waste Water from Scrubber System

XI. Technical Specification for Civil Works

XII. Recommended Makes of Equipments



TIDEL PARK COIMBATORE LIMITED

CONSTRUCTION OF INFORMATION TECHNOLOGY PARK BUILDING COMPLEX AT COIMBATORE, TAMILNADU

DESIGN, SUPPLY, INSTALLATION, TESTING AND COMMISSIONING,

OPERATION MAINTENANCE OF DIESEL GENERATOR SETS WITH AMF FACILITY, SCRUBBER, EXHAUST CHIMNEY, UNDERGROUND DIESEL STORAGE TANK, EXHAUST PIPING, ACOUSTIC ROOM INSULATION,

VENTILATION SYSTEM, EARTHING AND CONNECTED WORKS

PROJECT INFORMATION TIDEL Park Limited is implementing a state of the art high rise intelligent building for

Information Technology Park located at Coimbatore, TamilNadu. TIDEL Park Ltd has

proposed to install Diesel Generating sets and connected works for the building.

The ambient temperature : 42oC

Relative Humidity : 100%

Design ambient for alternator : 50oC



I. TECHNICAL SPECIFICATION FOR DIESEL GENERATOR SET 1.0 SCOPE 1.1 Design, Manufacture, and testing of 5 Nos. 2000 KVA / 1600 KW

0.8 PF, Diesel Generator set, speed of Diesel engine not exceeding 1500 RPM, four stroke engine, designed for operating on high speed diesel, 415 V Diesel Generator sets consisting of air-cooled engine alternator and engine mounted radiator along with manual control panel with AMF facility having with auto synchronization, auto load sharing & auto changeover control panel along with all accessories and components such as scrubbers, chimney, ventilation system, fuel system etc. at CONTRACTORs and / or his sub-CONTRACTORs works, supply, transport and delivery to site including , insurance, handling, unloading and safe keeping etc. at site complete erection and installation on foundation prepared by another agency, connecting to all completed accessories and components and integrating the performance of all sub-systems, testing and commissioning and performance testing, maintenance of entire installation of the plant system including all connected structural, electrical and minor civil works required for the proper and efficient functioning of DG sets as specified in Specification / Bill of Quantities and Drawings

The capacity of the DG sets offered should be as specified in this

document. No credit will be given for any additional (extra) capacity DG set offered. If DG sets of capacity less than that specified is offered the same will not be accepted.

1.2 Design, Manufacture, Supply, installation, testing and

commissioning of silencer Exhaust pipes with insulation, wet scrubber including treatment plant for effluent, chimneys as required etc.


commissioning of earthing arrangements. 1.4 Design, Manufacture, Supply, Installation, testing and

commissioning of necessary heavy duty anti-vibration spring type mounts suitable for the DG sets with necessary bolts etc. for satisfactory installation.


commissioning of 2 Nos. of 30KL Diesel under ground steel storage tank for 5 Nos. of 2 MVA DG sets including all civil works such as excavation, raft foundation, RCC wall, filling of river sand etc., connected piping works with valves, flame proof fuel pump along with switches, starters housed in a weather proof enclosure, cabling, earthing, fencing arrangement including platform, safety arrangements as required for satisfactory installation and as per the regulation stipulated by various authorities.




commissioning of fuel pipe lines from Diesel storage tank to day tank with necessary pumps suitably for the 5 Nos of 2 MVA DG sets, valves etc. as per the drawing enclosed.

1.6 a. Compressed Air Start-up System Compressed air system shall be used to supply instrument air,

service air, and for starting air of DG sets. Air starting system is optional to the Bidder.

Two (2) Nos. 100% capacity air compressors with electric motors

and necessary controls shall be provided. Each compressor shall be of multistage air cooled type equipped

with safety valves, air intake filters, etc. The compressed air shall be supplied to an air bottle (one air bottle

for each engine). The capacity of the air bottle shall be sufficient for six cold starts of the engine at the required air pressure.

The starting air system shall be complete with interconnecting

piping, fittings, supports etc. as required. Instrumentation air as required for the plant instrument and control

system shall be drawn from the above compressed air system through suitable pressure reducing valves and 2 x 100% capacity air drying plants.

The plant service air requirements shall also be drawn from the

above compressed air system. Bidder shall provide suitable pressure reducing valves to achieve a service air pressure of 7 Kg/cm2(a). Bidder shall also provide necessary safety valves down stream of pressure reducing valves.

The capacity of the each compressor shall be sized for the

following:

a) Starting air requirement of One DG set, if air start is provided.

b) Service air requirement of 100 Nm3/hr

c) Instrument air requirement of DG sets and auxiliaries and FGD plant auxiliaries.

1.7 Supply, installation, testing and commissioning of 3200 A copper

busduct from generator to generator control panel.

1.7 Design and Preparation of the drawings for scrubber, treatment plant for



effluent, exhaust chimney; provision of sampling ports for all types of stacks, submission and obtaining approval and necessary certificate from Pollution Control Board and other statutory authorities.

1.8 Design and Preparation of the drawing for Diesel storage tank and

obtaining approval from Explosive authorities, Fire Service department and other statutory authorities such as Pollution Control Board etc. for commissioning the system including arranging inspection and also necessary approval / safety certificate from authorities etc.

1.9 Design and Preparation of electrical drawings for generator and connected

electrical installation work submission, obtaining approval to drawings arranging inspection, obtaining supply certificate from Electrical Inspectorate, Government of Tamilnadu and other Statutory authorities.

1.10 The Client will render necessary assistance to the successful Tenderer in

the form of furnishing letters and documents for obtaining such approvals. But the responsibility for obtaining approvals including arrangements for inspections etc. is that of the Tenderer. The necessary statutory fees / charges will be paid by the client against demand advice.

1.11 The scope shall include fabricate, supply and install FIVE numbers of 990 Ltrs. capacity day M.S. tank with the building to serve the D.G sets. For 5(five) Nos. of D.G sets of 2.0 MVA capacity will be provided with 990 Litres day tank each. The scope shall include all supporting frame work, anticorrosive treatment and connected pipe line and valves. The quoted rate shall include first filling of H.S.D. in day tanks after commissioning, at the time of handing over. Similarly, first fil of lube oil for the engine shall also be included in scope.

1.12 Design, manufacture, supply, installation, testing and commissioning of water line B class G.I pipe with necessary coupling valves, taps etc. for radiator cooling and for scrubber.

1.13 Water and Power for construction purposes will be made available by the

Main Contractor at a point inside or near the Service building. The tenderer shall extend the power and water as per the requirements for execution of the work. In respect of permanent service connection for Water and Power to the Plant and Machinery coming under the scope of this tender, the responsibility shall be that of the successful D.G. Contractor to ensure that the entire Electrical System and Water distribution system required for the operation of the D.G. Sets with all its components and accessories as well as sub-systems shall be part and parcel of the D.G. Contractor. As such quoted rates shall include the entire Power distribution system and Water distribution system, both being made available by the Owner at a point inside / near the Service Building. Beyond this point of interface, the successful tenderer shall be responsible for execution of Electrical and Water Distribution system.



1.14 The scope of package for DG set tender shall include the tenderer to

design, fabricate, supply, install, test, commission, hand over and maintain, during the guarantee period all required accessories and components that are required for a fully functional power generating station. Such accessories and components shall include all the following but not limited to:

a) Two sets of wet scrubbers, one connected to three-DG sets and the other

connected to the remaining. The wet scrubber shall be of suitable design and capacity to perform satisfactorily treating exhaust from all DG sets either working individually or collectively. Each of the two scrubbers shall have a minimum capacity to handle flue gas emitted from three numbers of 2000 KVA D.G sets.

b) Exhaust Chimney out of scrubbers to suitable heights conforming to the

statutory regulations by Environment Authorities. The height of the Chimney shall take into account the location of air-conditioning air cooled chiller plants on the terrace of the service building. The height of the Chimney should not be more than 20 Mtrs. and lightning arrestor shall be 0.5 Mtr. above Chimney with reference to Ground level. The Chimney shall be self supporting type and shall include necessary holding down bolt arrangements. However, civil works for foundations of Scrubber and Chimney is not in the scope of the D.G. Set tender.

c) Effluent Treatment Plant (ETP) to treat effluent including So2 component

from the exhaust The Plant shall be compact and self contained taking into account the space restrictions for which the tenderer shall carefully study all relevant drawings and the site conditions. In the design of Chimney and ETP, the tenderers shall include all costs during design as well as redesign if required, so as to conform to all statutory environment and local authority regulations as well as new amendments applicable at the time of commissioning. No additional claim for extra payment will be entertained on account of tenderers failure to take into these aspects. The tenderers shall furnish with the tender all technical data, design calculations with supporting drawings and diagrams to explain and justify the design and equipment for Scrubber, Chimney and ETP.

d) The Owner / Architect reserves the right to scrutnise and call for any modifications in the design of any components, if required such change in design is handled to meet the Owners requirements as well as statutory requirements. In such a case, tenderers shall be required to incorporate the changes without any claim to extra.

e) Vibration Isolation Mounts All generators shall be resting on

foundations, which will be constructed by the Main Contractor. All necessary Design, data to be furnished by the tenderer facilitate design and construction of foundation through other agencies. The tenderers shall however include necessary bolts, insert plates, connectors etc. as may be required and supply of such interface components shall fall within



the scope of the tenderer. The successful tenderers technical personnel should be available at all time during the execution of connected civil works and certify important construction parameters such as alignment, levels including cut outs etc. If any interrelated civil works have to be carried out for which necessary technical support from successful tenderer is not available in time, any cost incurred by the Owner in rectification / remaking of such interface items will be to the account of successful tenderer for the DG Set package.

f) All water circuits for the Scrubbers including circulating pumps, circulating

lines, connected electrical installation and piping shall be within the scope of the DG Set Contractor.

g) The scope shall include design and installation of efficient acoustic

treatment to the D.G sets as well as to the building in such a manner that the sound levels with all the D.G sets operating will be within 105 dBA at 1.5 metres from the DG sets and less than 70 dBA at the nearest boundary of the site during night time and less than 75 dBA at the nearest boundary of the site during day time. All necessary measures to attain this, shall be indicated separately by the tenderer. Tenderer shall note that the specified acoustic performance shall be guaranteed by him. Such measures involving civil works will be implemented by the Owner. Other measures involving mechanical items (such as ducting, hoods, canopies, silencers etc.) will be implemented by the D.G Contractor. Cost of all such measures, (i.e. other than civil works) to reduce noise levels shall be indicated by the tenderer separately. Measures recommended by the DG set tenderer involving civil works shall be listed separately.

1.15 Battery Limits :

The Electrical source & water supply will be located at site:

The Successful Tenderer shall extend the supply for water and electrical power supply in one location.

Effluent disposal will be made by the other agency. 1.16 Site and Building Space Restriction: In the attached site plan and building drawings, space allocation has been shown

for the D.G sets as well as all accessories. The Tenderer shall ensure that all equipments are fitted within the space earmarked. No other space will be made available. In case any Tenderer indicates that space within the D.G plant building is not adequate for the engine, alternator and radiator or indicates that for the D.G offered by him radiators have to be placed outside the building, his offer will not be considered further.

2.0 GENERAL SPECIFICATIONS FOR DIESEL GENERATOR The diesel generator set shall consist of diesel engine coupled to alternator having

self brushless excitation system and including all necessary accessories and the



control panel. The engine and alternator shall be mounted on the single robust fabricated steel frame. Required set of anti-vibration pads should be supplied.

3.0 CODES AND STANDARDS FOR DIESEL ENGINE The Diesel Generator Set with all its components shall comply with latest

applicable standards, regulations and safety codes in the locality where this equipment will be installed. The equipment shall conform to the following standards with latest additions. The DG set shall be tested as per ISO 3046.

BS : 5514 or ISO 3046 - Diesel engines for general purposes. IS : 10000 - Method of test for I.C. engines.

IS :10002 - Performance of constant speed compression ignition engines for general purposes.

IS : 1460 - Specification for diesel fuels. IS : 4722 - Rotating Electrical Machines.

IS : 4889 - Method of determining efficiency of rotating electrical machines.

DIN: 6271) OR - Over load capability. BS : 5514) VDI : 2063 - Limiting vibration of the engine. The fuel analysis of HSD shall be taken from IS : 1460 1995. 4.0 GENERAL SPECIFICATION FOR A.C. GENERATOR This specification cover the minimum technical requirements for the design,

manufacture, testing and supply of self excited, brushless generator with automatic voltage regulator and other accessories as a part of diesel generator set.

5.0 CODES AND STANDARDS FOR ALTERNATOR 5.1 Alternator shall be designed, manufactured and tested as per currently applicable

statutes, regulating and safety codes in the place where the equipment will be installed.



5.2 The equipment offered shall conform to the following codes/standards.

Unless they are in variance with the clause of this specification, the synchronous generators and their components shall comply with the latest edition of the applicable standards listed below:-

BS-2613 : The Electrical Performance of Rotating Electrical Machinery. IEC-34-1 : Rotating Electrical Machines. IS-4722 : Specification for Rotating Electrical Machines. BS4999/ 5000 : All applicable parts of BS-4999/5000 IEEE115 : Test procedure for synchronous machines.

VDE 0530 : Rotating electrical machine 5.3 Any other recognised International Standard may be used in lieu of the above,

subject to the approval of the Owner. 5.4 Alternator shall also conform to the latest editions of standards including all

revisions and addenda currently applicable at the time of placement of order. 6.0 A.C GENERATOR - 2000 KVA DIESEL GENERATOR SET 6.1 The alternator offered shall be suitable for the site conditions indicated in the

project information data sheet. 6.2 The generators shall be of Brushless EXCITATION 2000 KVA, 415 volts, 0.8 PF,

3 phase, 50 Hz. and should be of Double bearing type. 6.3 The degree of protection shall be IP-22 & method of cooling IC-01 7.0 INSULATION 7.1 The alternator stator windings shall be of Class H insulation temperature rise

limited to Class 'B' insulation. The windings and overhangs shall be braced to withstand the temperature and short-circuit forces. The windings should be, vacuum pressure impregnated (VPI)and treated with Epoxy gel coating.

7.2 The field windings shall have Class 'H' insulation.



8.0 VOLTAGE / FREQUENCY VARIATION 8.1 The generator shall be capable of satisfactory continuous operation at rated KVA

and power factor at any voltage from 90% to 110%. Rated voltage and with a frequency range of 47.5 Hz to 51.5 Hz.

8.2 The transient voltage dip should not exceed 20% for rated load and should be

restored within 0.8 Second. 9.0 OVERLOAD AND SHORT CIRCUIT The alternator shall also be capable of withstanding without any damage a 10%

overload for a period of one hour in every twelve hours of operation. The alternator should be capable of delivering 3 to 4 times the full load current for a period of 3 seconds.

10.0 SPACE HEATERS Suitably rated space heaters shall be installed within the generator. Location and

maximum surface temperature of the heaters shall be such that no damage is caused to the insulation. The leads of the space heater should be brought to a separate terminal box. Heaters shall be suitable for single phase 240 V AC. 50 Hz with Auto Cut off feature.

10.1 Winding temperature sensors :

These should be provided in each phase for monitoring the temperature (2 Nos. of RTDs per phase) platinum RTD of 100 ohms at 0C as per IS 2848 shall be used.

10.2 Bearing temperature sensors:

These should also be provided for monitoring temperature of bearings.(1 no BTD per bearing) platinum BTD of 100 ohms at 0C as per IS 2848 shall be used.

11.0 EXCITATION SYSTEM The generator shall be provided with a brushless excitation system capable of

supplying the excitation current of the generator for any change in output between no load and full load at any power factor between 0.5 and unity, lead and lag for an engine speed variation of 4%.

Rotating AC exciter shall have stationary field circuit powered by tapping off from

the stator or by a PMG.



12.0 AUTOMATIC VOLTAGE REGULATOR (AVR) 12.1 The AVR shall control the generator voltage under steady state load conditions

and over the whole of the operating range of the exciter within +1.0% of the setting value without hunting.

12.2 All the potential free contacts required for REMOTE OPERATION & INDICATION

ETC shall be provided. 12.3 The automatic solid state voltage regulator shall be provided with the following

features as minimum

a) Short-circuit protection b) Voltage build-up circuitry c) Over voltage protection d) Under and over excitation. e) Nos. AVR with auto change over facility shall be incorporated. f) Loss of Excitation g) Diode Failure detection h) Field forcing 150% for 10 Secs. i) AVR 1 failure Alarm Signal j) AVR 1 & 2 failure Trip Signal.

13.0 OTHER TECHNICAL REQUIREMENTS The alternator shall be mounted on a common base frame together with prime

mover unless otherwise agreed upon. The alternator shall be provided with necessary lifting hooks.

14.0 PROTECTION Each generator shall be provided with the following minimum protection and as

shown in SLD. However, other protections as considered necessary by the generator manufacturer shall be included.

1. Differential protection (High impedance type).

2. Voltage controlled over current IDMT protection

3. Over Load Alarm

4. Under/over frequency Alarm

5. Earth fault IDMT protection

6. Under voltage / over voltage protection.

7. Fuse failure protection.

15.0 TERMINAL BOX Terminal box shall be fabricated out of cold-rolled steel sheet and shall be



complete with an access cover. The bus bar material used in the terminal shall be electrolytic copper sleeved with

flame- retardant insulating material. Bus bars shall be supported on fiberglass insulators at regular intervals to withstand short-circuit forces arising out of specified fault level.

16.0 RATING PLATE

A rating plate of corrosion-resistant metal shall be fixed on the generator

frame and shall give the following information:

1. - Manufacturers Name 2. - Serial Number, Type and frame reference. 3. - Rated output in MVA and MW. 4. - Rated power factor 5. - Rated frequency 6. - Rated voltage 7. - Rated stator current 8. - Rated speed in Rev/Min 9. - Class of insulation 10. - Phase rotation (CW or CCW) 11. - Rotor current and voltage at rated output 12. - Customers indent number 13. - Year of Manufacturer 14. - Weight of alternator in Kg.

17.0 TESTS & INSPECTION

17.1 The Client/Consultant/ his authorized representative may visit the works during

manufacture of equipment to assess the progress of work as well as to ascertain that only quality raw materials are used for the same. He shall be given all assistance to carry out the inspection. Detailed quality assurance plan shall be furnished to the Client.

17.2 Detailed test procedures along with the facilities available at CONTRACTORs

works shall be submitted along with the bid. Owners representative shall be given minimum four weeks advance notice for witnessing the final testing. Test certificates including test records and performance curves etc, shall be furnished by the supplier.

17.3 TESTS

Generator set with all auxiliaries and controls shall be assembled and tested to verify compliance with the guaranteed technical particulars and for satisfactory performance. Relevant standards shall be followed as guideline for testing. All the tests shall be witnessed by customer or his representative.

Following minimum tests shall be carried out on the generators for all DG sets as



per IS 4722.

1) Measurement of cold resistance.

2) Remnant voltage measuring.

3) Voltage balance.

4) Rotating field control.

5) Load characteristic of p.f = 0.1

6) Vibration

7) Excitation system

8) AVR

a) Adjustment of voltage regulator

b) Under speed protection adjustment.

9) Short-time overload with p.f. = 0.1 or SC.

10) Winding test.

11) Over speed test at 120% rated speed.

12) High voltage test

13) Measurement of insulation resistance

14) Adjustment of additional units for voltage regulators.

a. Type Test

The following type test shall be conducted for 1 No. 2000 KVA generator set as per IS 4722. a. Open Circuit characteristic test

b. Short Circuit characteristic test

c. Temperature rise test

d. Over load test

e. Over speed test

f. Vibration measurement test

The tenderer shall submit authenticated test certificate for the type test carried out

by them and if required the Client / Consultant can insist for a type test to be carried out on the Generator in the presence of Client / Consultant.

17.4 FINAL CHECK



General check and test of assembled parts, wiring, labels, connection diagram,

rating, heater, etc. 18.0 GUARANTEE DURING DEFECTS LIABILITY PERIOD

The Supplier shall have final and total responsibility for the design and

performance of all equipment supplied under this specification. Tenderer shall guarantee that the equipment shall satisfy the requirements of its intended use and be free from latent defects. Contractor shall repair and replace any equipment, which proves to be defective within 12 months from the date of commissioning and handing over the installation. If any defect is noticed during the guarantee period it shall be rectified/replaced at no extra cost. The guarantee period will again commence from the date of such rectification / replacement. Penalty shall be levied if the Contractor fail to meet the performance in the second time also. 10% value of the work ordered value will be deducted towards penalty. If the defects are not rectified the same will rectified by the client at the cost of Contractor.

The following performance guarantee parameters shall be furnished along with the

tender :

a) Net electrical output on battery limit after deducting excitation power, all electrical losses and auxiliary power consumption.

b) Specific fuel consumption (SFC) at 100%, 75%, 50% load.

c) Specific lube oil consumption.

d) Over load test.

e) Noise level.

f) Vibration as per standard.

18.1 PERFORMANCE GUARANTEES AND TESTS

The items listed below shall be guaranteed at site performance test for the site conditions as indicated in project information of the specification, under correction. The performance test shall be conducted separately for each diesel generator and each FGD plant. The actual value of power output of each diesel generator, sulpher capture, effluent discharge quality and auxiliary power consumption of FGD plants and for other items listed below for performance guarantee shall be indicated by the BIDDER in the performance guarantee schedule.



Item Limits beyond which penalty is leviable or correction is to be carried out Tolerance (Design

and manufacturing)

1)

DG set

a. 100% power output of the diesel generator set at generator terminals after deducting excitation power, electrical losses and auxiliary power consumption on Net power Under Penalty. (-) 0.0%

b. Vibration and noise level Under correction (+) 0.0%

c. Noise level Under correction

Noise level with all DG sets working, over the full range of load upto 110% power output at 1.5 mtrs. from outline of the equipment in any direction (+) 0.0%

Noise level at nearest site boundary. (+) 0.0%

d. Other tests are called for in the performance guarantee test code Under correction. 0.0%

2) Flue gas desulphurisation plants

SO2 emission limits at FGD plant outlet at guaranteed power output - Under correction

(-) 0.0%

Auxiliary power consumption Under correction (+) 0.0%

Effluent discharge quality from FGD plants as per applicable norms Under correction.

(-) 0.0%

3) Specific fuel consumption Under correction (+) 0.0%

18.2 The CONTRACTOR shall demonstrate successful operation of diesel generators

with specified fuel on automatic / manual control called for in the specification. Only measurement tolerances shall be applicable during the performance testing. No other tolerance will be entertained.

18.3 The performance test results shall be reported as computed from the performance

test observations, with corrections for ambient temperature, relative humidity and instrument calibrations. No additional allowances for errors in measurement are permissible. Tolerance on the performance test guarantee values, reported on the basis of above test shall not exceed the limits indicated. Should the performance



test results deviate from the guaranteed values including the specified tolerance the CONTRACTOR shall correct his equipment at no extra cost to the OWNER and repeat the performance tests within the period agreed mutually between the OWNER and the CONTRACTOR. If, however, the CONTRACTOR fails to meet the guarantee values in the 2nd test also in regard to the items under correction the CONTRACTOR shall replace the equipment with one which shall meet the guaranteed values with out any additional cost to OWNER within the mutually agreed time period.

18.4 All instruments and accessories used in performance tests shall be calibrated and

be guaranteed for the accuracy traceable to National level / standards.

19.0 SPECIAL TOOLS

The Supplier shall supply all special tools required for field inspection and

maintenance of the complete generator package.

20.0 SPARES(DELETED)

20.1 All start up and commissioning spares as required till handing over the plant shall be supplied by the CONTRACTOR.

20.2 Bidder shall furnish a list of recommended spares with unit prices for all the

equipment / systems being supplied by him. Bidder shall note that these spare parts (both essential and / or recommended) would be purchased either fully as per the list or partly as decided by the OWNER. The purchase of these spares would be done either along with the main order or by a separate order or an amendment to the main order. CONTRACTOR shall furnish complete information such as instruction manuals / general arrangement and spars identification drawings, etc. for the equipment to enable the OWNER to finalise the exact requirements. Subsequent to placement of order for recommended spares, CONTRACTOR shall furnish details / dimensional drawings for all such spares.

20.3 The CONTRACTOR shall guarantee to the OWNER that before going out of

production spare parts for the equipment furnished he shall give at least twelve (12) months advance notice to OWNER so that the latter may order his requirement of spares in one lot if he so desires.

21.0 PAINTING Internal and external parts of the casing and all metal parts likely to come in

contact with the surrounding air shall be protected with anti-acid, anti-alkali Epoxy paint to resist corrosion under specified atmospheric conditions.



22.0 List of data/drawings to be submitted by the tenderer along with the tender.

The list shall essentially include the following: a. P & I drawing of the entire system envisaged. b. Over all dimensions and major parameters of the diesel engine and balance of plant system along with technical literature. c. List of sub-CONTRACTORs for major equipment and system. d. Bar chart and network schedules covering all milestone activities. e. Technical parameters and other relevant data of all equipment offered

f. Overall layout. g. Equipment layout.

23.0 DEVIATION:

Deviations from Commercial and Technical aspects of this Bid Documents are

discouraged. No deviation from Commercial aspects will be accepted and if any, stipulated may either render the Bid to be rejected or cause suitable financial loading to the Bid value as deemed reasonable by the Owner. In all such matters, the decision of the Owner shall be final and binding on all the Bidders.

In respect of deviations of Technical matters, the Bidders are required to list in a

separate Annexure, titled, Technical Deviations and enclose the same in the first sealed Envelope superscribed Technical Bid . This statement shall not be enclosed with the Price Bid as the Owner would like to evaluate the Technical Deviations first before opening the Price Bid. Owner reserves the right to reject the Bids of such Bidders whose Technical Deviations are not acceptable to the Owner, or to ask the Bidder to comply without any deviation to the Tender Specification, without any change in the quoted rate / value in the Price Bid. In the list of Technical Deviation the Bidder shall follow the following format.

Annexure

Technical Deviation

.No. Item no. of

Bid Document

Page No. Brief Description of Item as required in Bid Specification Nature of Deviations

Reason as to why the Bid

Specification can not be met

1.



2.

3.

4.

24.0 DELETIONS

Owner reserves the rights to accept any tenders or reject any or all tenders without assigning any reasons. The Client further reserves the right to alter the scope of the work at any time to any extent due to which there shall be no change in accepted rates. Such changes in scope may include deletion or addition of any item, as considered necessary by the Owner and the same shall be informed to bidder.

25.0 EVALUATION OF ELIGIBILITY CRITERIA:

Tenderers shall be required to submit fully authenticated documents in support of their capability to satisfy the eligibility criteria specified in the Notice Inviting Tender. All supporting documents shall be enclosed in a separate cover superscribed Eligibility Criteria (Part : C) and shall be placed in the envelope containing (Part : A) and (Part :B) of the tender documents. Tenderers not fulfilling the minimum eligibility criteria or those not furnishing required documents will be rejected and their price bid (PART II) will not be opened.



PERFORMANCE GUARANTEE SCHEDULE

BIDDER TO INDICATE THE VALUES

Sl. No. Items Guaranteed Value

1) DG set

i. a) 100% power output of the diesel generator set for site conditions at generator terminals after deducting excitation power electrical losses and auxiliary power consumption. KW

ii. b) Vibration level over the full range of load upto 110% Power output of the DG set. mm/sec

c) Noise level

Noise level with all DG sets working, over the full range of load upto 110% power output at 1.5 mtrs. from outline of the equipment in any direction. dBA

Noise level at the nearest site boundary. dBA

d) Other tests as per code ISO 3046 shall be performed and proved. Yes

2) Flue gas de-sulphurisation plant SO2 emission limits at FGD plant outlet at guaranteed

power output. PPM

Auxiliary power consumption for each FGD Plant KW

Effluent discharge quality from FGD plants - pH - Suspended solids mg/1 - Total dissolved solids mg/1

SEAL OF THE COMPANY SIGNATURE : NAME : DESIGNATION : DATE :



TECHNICAL SPECIFICATION FOR 2000 kVA DIESEL ENGINE RADIATOR COOLED TYPE

The diesel engine shall be vertical single acting direct injection type with turbo

charged and after cooled. KW rating, auxiliary power consumption, guaranteed fuel consumption, governor performance and tortional vibrations shall be in accordance with ISO : 3046 or BS : 5514. The engine shall be supplied with radiator and blower fan.

The speed of the diesel engine offered shall not exceed 1500 RPM. The engine

offered shall be a four (4) stroke engine designed for operating on high sulphur diesel (HSD)

Material / item if any which may found omitted but required to make a complete

diesel generator set should be supplied. The diesel engine for 2000 kVA Diesel Generator set should consist of the

following: Air Inlet System Air intake filters (dry type) with service indicators. Turbo charger After cooler Exhaust System Exhaust elbow dry Exhaust manifold dry Exhaust flexible fittings Silencers - Residential Flywheel Housing Flexible coupling/Flex plate Flywheel Flywheel housing SAE standard rotation Cooling System Engine driven water pump of centrifugal type Blower fan with radiator, fan drive and fan guard Engine Thermostats Fuel System Injectors Fuel lines Fuel filter Primary fuel filter



Fuel priming pump Fuel water separator Fuel cooler Fuel oil gear pump Lube oil System Lube oil cooler Oil filling point with dipstick Oil pump gear type Oil pan Crankcase breather Lube oil filters Lube oil priming pump Closed crankcase venting system Engine electrical Dual Electric starting motor Charging alternator Battery, Battery Stands and leads Instrumentation Start and stop switch Lube Oil pressure indication Water temperature indication Battery voltage indicator Engine speed indication Engine running hours indication Lube oil pressure Low trip indication High water temp. trip indication Over speed trip indication Governing System Electronic, complying to class A1 governing levels, droop adjustable.

Engine Monitoring System Controllers indicating engine and alternator parameters. CAN Bus communication system. AMF Module. Engine Management System Integrated electronic engine control and monitoring system for

Engine speed control Engine monitoring and display of engine operating parameters and alarms Engine protection against critical operating parameters.



Automatic start sequence control. Communication with an external system.

Note: The Engine shall be supplied with first fill of lube oil.



III. TECHNICAL SPECIFICATION FOR CONTROL PANELS

1.0 GENERAL Free floor standing indoor type cubicle D.G. control panel, fabricated out of 14/16

SWG steel sheet with front hinged bolted rear doors, with dust and vermin proof totally enclosed should be supplied.

2.0 SPECIFICATION FOR 2000 kVA D.G SET STANDARD CONTROL PANEL 2.1 GENERAL

This specification covers the technical requirements of Design, Manufacture, Test at Works and Supply of 415V Control Panel, complete with all accessories for efficient and trouble free operation.

2.2 STANDARDS The equipment covered by this specification shall, unless otherwise stated, be designed, constructed and tested in accordance with the requirements of the latest revision of Indian standards. IS : 4237 - General Requirements of Switch gears and control gears for Voltage not exceeding 1000 V. IS : 8623 - Factory Built Assemblies IS : 2147 - Degree of protection provided by enclosures for low voltage Switch gear and control gear. IS : 375 - Marking and arrangement for switch gear busbar main Connections and auxiliary wiring. IS : 4064 - Heavy duty switches IS : 2959 - Air Break contactor IS : 8544 - Motor starters and over load relays IS : 9224 - HRC Fuses IS : 2705 - Current transformers IS : 1248 - Electrical indicating instruments. IS : 13947 - Circuit breakers

3.0 CONSTRUCTION

The control Panel shall be metal enclosed, compartmentalised, modular type, and construction suitable for Indoor installation. The control Panel shall be dust and vermin proof and the enclosure shall provide a degree of protection of not less than IP 45 as per IS 2147. Control Panel shall be fabricated out of adequate thickness mild steel structural sections. The frames shall be enclosed with steel sheet of not less than 2.0 mm thickness with rubber



gaskets at all joints and openings including doors. All bolts, nuts and other fastener shall be cadmium plated only. The ACB or MCCB used as isolator shall be 4 pole, manually operated fixed type breaker. All bolted joints shall be provided with toothed/spring washers to ensure good earth continuity. The control Panel shall have a series of cubicles of uniform height placed side by side with front access for operation. The maximum operating height of the devices on the panel shall not exceed 1800 mm and minimum operating height shall not be less than 300 mm. Control Panel shall be supplied along with base channel fabricated out of 3 mm thick steel sheet, painted black.



V. TECHNICAL SPECIFICATION FOR SANDWICH COPPER LT BUSDUCT

1.0 SCOPE

This specification covers the technical requirements of design, manufacture, test at works, supply, installation, testing & commissioning of 433V LT, Non-segregated SANDWICH copper busducts and accessories for efficient and trouble free operation. The busduct shall be erected from DG set to Breaker control Panel & from Auto Synchronisation & Load sharing panel

This specification covers

Sandwich type busbar trunking for use as feeder busbars for interconnection between separate electrical equipment / load centers, and for use as plug in

busbar risers.

2. System details The busbar shall be suitable for operation in a 415 V with operating frequency of 50 Hz. & System non-effectively earthed system.

3. Standards The busbar shall be designed and manufactured in accordance with the following

international standards for busbar trunking:

BS 5486 Part 2: Particular requirements of busbar trunking systems IEC 439 2 : Particular requirements of busbar trunking systems IEC 529 : Degree of protection IEC 60331 : applicable for the cast resin busbar fire rating

Where required and specified, the busbar shall conform to IEE, NEMA BU1, JIS, Seismic protection certification.

4. Testing



The busbars shall be type tested at a reputable international test laboratory (ASTA or CPRI) for short circuit withstand. The test shall be for a minimum duration of 1 second. Tests shall be performed over a range of current ratings, covering the different frame sizes of the manufacturer.

Degree of ingress protection (IP rating) shall also be tested at any reputed independent laboratory. This test shall be for IP68 in the case of cast resin busbars, and for IP42/ IP55/IP66 for sandwich busbars

750 degree C fire test (for cast resin busbars) at an independent laboratory 5. General

The busbars shall be of sandwich construction, non-ventilated design. It shall be possible to mount the busbar system in any orientation, without affecting the current rating. The sandwich busbar configuration must be compatible with the cast resin busbar, and must allow for interconnection of the two types, wherever required.

6. Busbars

The busbars shall of high conductivity Copper, as specified in the tender. Where an earth conductor is required, it shall be a separate, integral earth

conductor, of the same high conductivity material as the phase conductors, and

at least 50% cross section of the phase conductor. GI body / GI strips will not be

acceptable as earth conductors.

It should be possible to provide a 100% Neutral where specified. 7. Insulation

The busbars shall be insulated throughout their length by epoxy coating. The insulation material used shall be of Class H (180 deg. C). The insulation should be 100% water resistant even for IP 42 trunking. The insulation must comply to UL 94 V-O..It shall be Halogen Free.

8. Housing

The housing shall be made of 1.6mm electrogalvanised sheet steel, with an epoxy powder coated paint finish. The housing shall be profiled, to provide higher strength and efficient heat dissipation. The width of the housing shall preferably be the same for all ratings of busbars, in order to provide interchangeability of tap off boxes.



9. Joints

The joints between sections shall be made so as to provide flexibility during installation and expansion / contraction of busbar during operation. The joints shall be of the single bolt type

The joint construction must have the following features

Heat expansion of at least 3mm per joint. The joint insulation must be of one piece molded design and not have any cut

edges which can absorb moisture.

The joint construction must allow a +/- 14mm adjustment at the time of installation, for ease of adjusting to site measurement variations.

The joint bolt must be insulated with a bolt insulator. The bolt insulator must be of molded one piece.

The joint system must be designed in a way that the installer cannot insert the busduct length too far and damage the bolt insulator.

The busbar ends shall not have holes or slots at the joints the electrical continuity shall be through pressure plates, achieving a high area of joint cross

section and expansion capability.

It shall be possible to install and remove the joints without disturbing the busbar run.

10.0 Accessories

A full range of accessories like bends, end flanges, end feed units, support brackets etc. shall be available.

11.0 TESTS

Bus bar trunking shall be completely assembled, adjusted and tested for operation under simulated conditions to ensure proper functioning of all equipments. a. Type Tests

The Bidder shall furnish two (2) sets of type test certificates for all the tests

conducted on similar equipment. The temperature rise test shall be conducted

on atleast one section of the straight runs of each rating specified in the

Schedule of Quantities will be witnessed by Client/Architect.



1. Short time current test.

2. Temperature rise test.

3. One minute power frequency voltage withstand test.

b. Routine Tests

1. Mechanical operation test.

2. Dielectric tests. 13. 0 Drawings and Documents The following drawings and documents shall be furnished in six (6) copies and

get approval before execution of work.

1. General arrangement drawing for Rising main showing.

2. Overall Dimensions for Different rating.

3. Terminal locations.

4. Total weight / metre.

5. Sectional views.

6. Fixing details.

7. Sectional view of Tap Off Box.

8. Single Line Diagram.

9. Technical details for Fuse switches.

10. Manufacturing schedule and test schedule.

11. Calculation for busbar sizing.

12. & M Manual.

14. IDENTIFICATION LABEL Each piece of the Bus Riser shall be provided with suitable identification label for

easy identification while installation.

NAME PLATE Suitable name plate shall be provided in bus riser containing Manufacturers name,

Voltage rating, current rating, frequency etc. which shall be clearly visible after installation.



15. PACKING AND DESPATCH All the equipments covered under this specification including all accessories shall

be properly packed and delivered at the site without any damage. Note : The tender drawing and the conductor size indicated in the drawings and

BOQ shall be used only for reference and guidance. Successful Tenderer shall provide all the above details based on the requirements specified in the tender document. Sizing calculation shall be furnished for review by Client/ Consultant.

16. SPECIFIC REQUIREMENTS FOR SANDWICH BUS RISER AS PER IS

8084

S.No. Description Units

1a). System nominal voltage - 415 V

b). APPLICABLE STANDARDS - IS: 8084, IEC439-2; BS5486 Part2; NEMABU1; JISC 8364.

2. Rated continuous current - As specified in the drawing.

3. System frequency - 50 Hz

4. Number of phases - TPN

5. a. Minimum phase to phase clearance (clear) - 25 MM

b. Phase to body clearance (clear) - 19 MM

c. Phase to neutral (clear) - 19 MM

6. Neutral Grounding(NGR shall be rated to limit a fault current of 100Amps for a duration of 30secs.)

- Solidly earthed.

7. Insulation level

1 min dry power frequency withstand voltage

- 2.5 kV rms

8. Short time rating (symmetrical KA) - 50 KA/1Sec.

9. Dynamic withstand current - 100 KA peak.

10. Cooling - Self-cooled

11. Design ambient temperature - 50 C 12. Location - Indoor

13. Degree of protection - IP 42



15. Acceptance tests - As per IEC 6.0 AIR CIRCUIT BREAKERS 6.1 General

Air circuit breakers shall be of 3 pole / 4 pole 100% coated neutral and shall have

Over load, short Circuit and Earth Fault protections wherever specified. They

shall be complete in all respects having the following minimum requirements.

Shall comply to IEC 60947-2 / IS 13947 2.Confirming to test sequence I,II,&III. Should be suitable for Isolation as per standard. Shall have the Isolation between power circuit and Control circuit. Shall have Micro Processor trip-release with EMC compatibility, thermal memory,

contacts for ZSI, true rms sensing and trip unit self diagnostics.

Facility to change setting in ON condition. Breaker Capacity should be Ics value only. Should have short time withstand capacity [Ics=Icw / 1Sec]. Shall have in built current display and have the facility to read the % of loading on

each phase for incomer Breakers.

Should have facility of local fault identification (OC, SC, EF wherever E/f is specified) microprocessor failure alarm indication.

The Breaking capacity shall be as indicated in the Schedule of Quantities. Com RS485 Port wherever specified in BOQ/SLD.

6.2 Construction

Shall have facility for rating interlocking. Motor wound spring closing mechanism wherever specified. Full draw-out type with indication for service, test and isolated positions. Trip free mechanism. Mechanical open, closed and spring charges indicator. Main contacts made up of copper. Magnetic blow out arc control device. Facilities for pad locking.



Contact erosion.

The circuit breaker shall be fully draw out type. Suitable guides shall be provided to facilitate easy withdrawal of the trolley. All identical feeder compartments shall be inter-changeable.

All current carrying contacts of the breaker shall be silver plated. Contacts subjected to arcing shall be tipped with suitable arc resisting material. - Shall have facility of O/C Pre-Trip alarm at set current.

The contacts shall be self-aligning, plug-in type, designed to ensure adequate contact pressure on the main busbars and requiring minimum maintenance.

- ACB shall have Line and Load Reversibility. - Should have the Anti-pumping feature.

6.3 Operating Mechanism

The operating mechanism shall be trip-free. Failure of spring, vibrations or

shocks shall not cause un-indented operation of breaker or prevent intended

tripping operation. Closing of breakers shall be prevented unless the spring is

fully charged.

6.4 Interlocks

- Should be suitably of Isolation as per standard.

The breaker shall be provided with all necessary interlocks to prevent inadvertent

operations and to ensure safety of operating personnel and also the equipment.

It shall not be possible to push in a drawn out breaker in closed condition or

withdraw a breaker in closed condition. Compartment doors shall be interlocked

against opening when breaker is in Closed condition. It shall not be possible to

operate the breaker in intermediate position while inserting or withdrawing a

circuit breaker.

7.0 MOULDED CASE CIRCUIT BREAKERS

- The MCCB upto 630A shall be current limiting category A and 800A and

above shall be Cat.B, Icw / 0.5 20KA and shall comply with the requirement



of IEC 60947-2 / IS13947-2:test sequence I, II, III.MCCBs shall have Class II

Front Facia.

- Should be suitable for isolation as per standard. - Shall have Thermal Magnetic release upto 250A & MicroProcessor

/electronic releases of above 250A. - Micro processor / electronic releases should be EMC compatibility, thermal

memory and true rms sensing. - The breaking capacity shall be Ics values upto 630A and Icu for higher

ratings as per the Schedule of Quantities.

- Should have the facility to change the setting in on condition.

- Shall have the Isolation between power circuit and Control circuit.

- Shall have with front door handles

- MCCB shall have minimum 15000 cycles electrical life upto 160A

The MCCB shall comprise of switching mechanism, contact system, arc

extinguishing device and the tripping unit all mounted inside a moulded case.

The MCCB shall be provided with field settable over load protection and S/C

protection.

MCCB shall employ quick make and quick break switching mechanism

independent of the speed of operation of the operating handle. The operating

mechanism also be trip free. The operating handle shall indicate the position of

the MCCB in ON / OFF / TRIP. The operating handle shall have provision for

padlocking. Door interlocking shall be provided in the drawing and specification.

MCCBs shall be rated as specified in the Schedule of Quantities.

Upto 160A rating, adjustable O/L settings 200A and above, adjustable o/l and

adjustable s/c settings. Sub-panel incomer shall switch dis-connector type MCCB

as per IEC 947-3 with possibility of fixing NO/NC, S/T, auxiliaries, as required.

8.0 CONTACTORS

Contactor shall be of electromagnetic type rated for uninterrupted duty as defined



in IS-13947-4-1 unless otherwise specified and also suitable for capacitor duty.

The main contacts shall be of silver or silver alloy.

The insulation class for the coil shall be class F or better.

Each contactor shall be provided with 2 N/O and N/C aux. contacts.

Contactor coil rating shall be minimum pick up of 85% of rated voltage and

minimum drop out of 75% rated voltage.

Type-II co-ordination shall be followed for MOTOR feeders.

9.0 PUSH BUTTONS Push buttons shall be generally shrouded. Each push button shall be provided

with 1 N/O and 1 N/C aux. contacts. "Stop" push button shall have, 'stay-put'

feature. Colour code shall be as per IS-6875.

10.0 INDICATION(ACB/MCCB) 10.1 Indication lamps shall be provided in each feeder with indicate 'ON' / 'OFF' /

TRIP.

10.2 Potential free contact shall be provided for monitory ON / OFF / Trip status for remote operation & indication etc..

11.0 SPACE HEATERS

Anti-condensation space heaters, with thermostat suitable for 230 V, 1 Ph supply

along with a switch / fuse shall be provided in each panel.

12.0 CONTROL SWITCHES A general purpose control switch shall be provided for selection of "Auto" &

"Manual". The switch shall be provided with engraving plate in the front with "Auto", Manual" & "Off" inscription. This switch shall be normally of the fixed-control bar type heavy duty unit.

All the Switches shall be lockable in all position.

13.0 MEASURING INSTRUMENTS

Ammeters and Voltmeters shall be of digital type. They shall be industrial grade

and shall have means of zero adjustment from the front without dismantling



them. They shall be capable of carrying the normal full load current (via CTs) and

shall not be damaged by effects of rated fault current. The instruments shall

have an accuracy class of 1.0 as per IS - 1248.

14.0 CONTROL WIRING

Panel shall be supplied with all internal wiring comprising of PVC insulated 1.1

KV grade, multi-stranded flexible copper conductor of 2.5 Sq.mm / 4.0 Sq.mm

cross section.

Wiring associated with a particular phase shall be the colour of that phase viz.

Red / Yellow, or Blue, wiring associated with earthing shall be with green colour

insulation and for neutral it shall be with black colour insulation.

Wiring shall be neatly laid and run on insulated cleats of limited compression type

insulated straps.

All cables shall have crimped terminations and shall be identified by means of

glossy plastic ferrules at both ends, showing the wire number as indicated in the

schematic diagrams. The ferrules shall be indelibly marked.

Wiring to items mounted on hinged doors or wiring that is subject to movement,

shall run in helical binding. The binding shall be securely anchored at both ends

and sufficient slack provided to prevent any strain being imposed on wiring.

15.0 EARTHING

All the metal parts of all equipment supplied with in the panel (including doors

and gland plates) other than those forming part of all electric circuit, shall

be connected by means of two independent earth conductors to continuous

copper earth bar of size 25 x 3 mm running along the full length of the panel.

The panel shall be provided with two brass earthing stud terminals, with

suitable nuts, washers etc. for connection to ground bus.

16.0 TERMINAL BLOCK

Terminal blocks shall preferably be grouped according to circuit functions and



each terminal block group shall have atleast 10% spare terminals. Terminal

blocks for control circuit shall be of 650V grade with contact ratings not less

than 10A and stud/clamp type.

Not more than two wires shall be connected to any terminal block.

17.0 LABELS

Labels shall be provided to describe the duty of or otherwise identify every

Instrument, or other item of equipment mounted internally and externally. Switch

positions shall be fully identified. Wording shall be clear, concise and

unambiguous.

Each label shall be permanently secured to the panel surface below the item to which it refers.

The labels shall be engraved plastic (4 mm THICK) with white letters in black background.

In addition to component labels, each cubicle door shall bear a large

identification labels and the panel shall include large, prominent overall

identification label.

18.0 PAINTING:

Care shall be taken in workmanship and selection of materials to prevent the

occurrence of any form of damage or corrosion due to damp or highly humid

conditions.

The panel shall be prepared, primed, filled and painted to the highest standards.

All items shall be cleaned and deburred after fabrication and welding is complete.

External surfaces shall be filled and rubbed down as necessary to obtain a

perfectly flat smooth surface free from blemishes and imperfections and the

whole shall be Powder Coated with Epoxy paint and the shade shall be

indicated later.

The panels shall be fabricated at such work shops where the following facilities are available.



a) Sand blasting b) Pretreatment (Seven tank process) c) Spray booth d) Heating oven for all sizes of panels. e) Heat shrinking of PVC sleeves.

19.0 TESTS

The panel shall be completely assembled, wired, adjusted and tested for

operation under simulated conditions to ensure accuracy of wiring, correctness

of control scheme and proper functioning of all equipment.

20.1 Type Tests

The Bidder shall furnish the (2) sets of type test certificates for all the tests,

conducted on similar panel.

1. Short time current test.

2. Temperature rise test

3. One minute power frequency voltage withstand test.

20.2 Routine Tests (To be witnessed by Clients / Architect) 1. Mechanical operation test

2. Dielectric tests

3. Functional/Wiring test

20.3 Drawings and Documents The following drawings and documents shall be furnished.

a. General Arrangement drawing of the panel showing.

i. Overall Dimensions ii Terminal locations iii. Total weight iv Foundation details v. Sectional view vi. Bill of materials b. Single line diagram and wiring diagram. c. Technical details for ACBs, Switchgear, lamps, meters etc. d. Manufacturing schedule and test schedule. e. Calculation for sizing of busbars.

d. Quality Plan



e. O & M manual

The bidder shall furnish a tentative drawing showing the overall dimensions of

the panel, along with the bid.

21.0 TOOLS AND TACKLES

All tools, normal as well as special tools if any, required for the repairs or

maintenance of panel shall be recommended and supplied along with the panel

without extra cost.

22.0 SPARES 22.1 Commissioning Spares

The quoted price shall be inclusive of all necessary commissioning spares. 22.2 Maintenance Spares

Contractor shall recommend and quote for maintenance spares.



BILL OF MATERIAL FOR 5 Nos. OF 2000 KVA DG SETS AMF PANEL -1 & 2

2000 KVA DG SETS AMF PANEL ( DG SET INCOMER 5 NOS,

OUTGOING FEEDERS 5 NOS, BUSCOUPLER 4 NOS) EACH DG SET INCOMER SHALL COMPRISE OF THE FOLLOWING: (All ACB shall be rated for 75kA.)

Sl.No

Description Rating for (2000 kVA)

QTY

1. 4 POLE Electrically operated with draw-able air circuit breaker with shunt trip arrangement without in-built releases, UV release

3200A, 100 kA 1No.

2. 4P MDO MCCB for neutral Isolation 800 A with 400Amps setting also suitable for 100Amps setting

1No.

3. Cast Resin Current Transformers

b. Protection class, 5P20 3200/5A 3 Nos.

c. Class PS for differential application 3200/5A 3 Nos.

4. Static type High stability 3P differential relay

5. Comprehensive Micro processor based Generator protection Relay Protection.

1 No.

3ph. Over current and Earth fault Protection with site selectable IDMTL ANSI / BSC curves. (50,50N)

Thermal image Protection (49)

Instantaneous Over current and Earth fault Protection. (51,51N)

Voltage Controlled over current Protection (51v)

Loss of excitation ( 40 )



Sl.No


QTY

3ph. Undervoltage (27), Overvoltage (59), Voltage Unbalance (47) Protection, Negative sequence / unbalance (46) with independent time delay.

4 stage selectable under / over frequency (81) protection

4stage rate of change of frequency (81R)

Under, Over, Reverse Power (32).

Syncro check Function.(25)

Breaker Control Function (46 BC)

All the relays shall be numerical type & the NUMERICAL protection relay shall offer the following minimum metering functions.

Current for each phase (I)

Neutral Current

Phase to ground Voltage in each phase.

Phase to phase voltage for two phases

Average phase to phase voltage.

Peak Hrs

MWH

Active Power( MW)

Reactive Power ( MVAR)

Apparent Power (MVA)

Power Factor

Active energy Counter ( positive and negative)

Reactive Energy counter ( positive and negative )



Sl.No


QTY

Frequency

Current Maximeter

Harmonics distort ion factor in IA,IB, IC and average in percentage.

Harmonics distort ion Factor in voltage in VA,VB,VC and average in percentage.

The relay shal l offer minimum 400 t ime stamped events in clear text format, 20 fault records, 40 Osci l lographic records in COMTRADE format, 200 histor ical records.

6 AMF Logic with EB sensing for

under/over voltage, under/over

frequency, unbalance, programmable

start/stop timings, DG battery

supervision, integral push buttons for

DG start/ stop, EB/DG breaker

close/open, Auto/ Manual/Off and

annunciator accept/reset.

Programmable mains restoration, re-

cooling timings and in built 8 window

annunciator for DG faults.

7 8 channel Temperature scanner for monitor ing Bearing and winding temperatures.

1

8 Battery chargers: 24Volts, 40Amps,SCR controlled battery charger made up of 16SWG MS sheet enclosure with all accessories having automatic boost and trickle charging arrangements with volt and current limiting circuits, voltmeter for AC/DC supply, ammeter for charging

1



Sl.No


QTY

circuit (DC), automatic cut off facility when the Engine alternator is in working condition, MCB for protection, suitable for 230V,50Hz, AC supply, interconnections, body earthing.

9 DC Voltmeter and ammeter 1

10 Push button for Emergency stop(turn to release type), Trip circuit healthy etc.

1

11 Indication lamps for DG Terminal Voltage, DG healthy, continuous visual indication for Trip -circuit- heal thy etc,.

1

G ANNUNCIATION 1 Static 20 Window Annunciator with test,

reset, accepts push buttons. 1

2 Hooter for trip alarm 1 3 Bell for non-trip alarm 1

The operation height of the panel shall not be more than 1800 mm & not less than 300 mm.

DESCRIPTION OF WINDOWS FOR FACIA ANNUNCIATOR: Description Function 1. Differential Relay operated Trip 2. Winding temperature high Alarm 3. Bearing temperature high Alarm 4. Over current Relay operated Trip 5. Earth fault Relay operated Trip 6. Over voltage Relay operated Trip 7. Under voltage Relay operated Trip 8. Over Frequency / Under Frequency Relay operated Trip 9. Battery Voltage Low Alarm 10. Water temperature high Alarm 11. Water temperature very high Trip 12. Lube oil pressure low Alarm 13. Lube oil pressure very low Trip 14. 8 nos. Windows Trip 15. Fuse failure Alarm 16. LOSS OF EXCITATION Trip



17. AVR 1 failure Alarm 18. AVR 2 failure TRIP

OUTGOING FEEDERS 5 NOS: EACH DG SET OUTGOING SHALL COMPRISE OF THE FOLLOWING : 1. 4P 3200 A, 100 kA Electrically operated with draw able air Circuit breaker

with Shunt trip without releases 1 No. 2. Alphanumeric type 3O/C + 1E/F relay with selectable IDMTL/DMTL

characteristics and in built High set feature on O/C and E/F 1 No. 3 Digital type Ammeter with selector switches 1 No. 4 Digital type Voltmeter with selector switches 1 No. BUSCOUPLER 4 NOS: EACH BUSCOUPLER SHALL COMPRISE OF THE FOLLOWING : 4P 6300 A, 100 kA Electrically operated with draw able air Circuit breaker with Shunt trip without releases 1 No.

BUSBARS

The switchboard busbar shall be of copper bus with the main busbar rated for 6400A and the jumpers of 6400 A. The temperature rise shall be restricted to 40 over an ambient of 50. The switch board shall designed for copper sandwich BUS DUCT entry and exit. NOTE: A minimum of 20% spare terminal shall be provided apart from the terminals required for interfacing the temperature scanner, AVR, and Synchronising panel.

Minimum 2 nos. of 2N/C contactor of all relays shall be wired upto the terminal

block for the clients use. Minimum 10% spare terminal shall be provided. Timer and auxiliary relays as required for satisfactory operation of D.G sets and

also as per the Electrical Inspector Requirement shall be provided. Suitable adopter box should be provided to terminate the incomer supply from DG



set and outgoing supply to main panel. Both the supplies have to be taken by 3200A TPN copper busduct.

Batteries : Battery shall be capable of supplying the starting current of each D.G set and the

required control supply. It shall be possible to start each D.G 3 times consequently.

BRIEF DESCRIPTION AND PHILOSOPHY OF OPERATION FOR 5 NOS. OF 2000KVA DG SETS

1. There are Five DG sets of each 2 MVA,415V,0.8 pf rating and these are named

as GEN-1 to GEN-5. 2. These sets are AMF and Auto Synchronizing type.

3. All these sets Generate Power and feed to 415V switch board named DG

Synchronizing Power Panel.

4. The detailed bill of materials cum specification is given separately.

Operation Philosophy

1. There will be System Auto / Manual /Semi-Auto Mode Selector switch. 2. With this selector switch in Auto mode the complete system will be in Automatic

mode. 3. Events like DG Set starting, ACB closing, ACB tripping, DG set stopping and

Synchronizing with the running machine will happen automatically. Manual Mode:

1. In Manual mode the events like DG Set starting, ACB closing, ACB tripping and DG set stopping and Synchronizing with the running machine can be carried out manually by actuating the respective pushbuttons/Switches.

2. In manual Mode each set can me made to feed individual outgoings by operating

all the sets on no parallel mode by tripping the bus couplers.



AUTO MODE: Master Selector Switch: Since there are Five DG sets and only one set can be made to start first in the event of Grid failure. Therefore with this switch any one of the sets 1-5 can be selected as master. Subsequent sets will be started depending on load on the set already running. Example: Supposing the Set No 2 selected as Master. On Grid failure the Set 2 will start and the ACB will get closed. The load on this set will be monitored and in the event the load exceeds 80% of rated capacity (1.6 MVA) the set 3 will start and gets synchronised with the running machine Set 2.Even after synchronization of sets 2and 3,incase the load on set 3 exceeds 80% of the rated capacity (1.6 MVA) the next set in the queue set 4 will start and gets synchronised with the running machines.( 2 and 3) and so on. The sequence of sets to be started will be as follows. set 1 as master: 2-3-4-5 set 2 as master: 3-4-5-1 set 3 as master: 4-5-1-2 set 4 as master: 5-1-2-3 set 5 as master: 1-2-3-4 After start of the first set and closure of the its ACB all the Bus coupler ACBs will get closed automatically. On restoration of Grid supply the ACBs will get tripped in reverse order and the sets will get switched off. Semi Auto Mode: The bus couplers can not be closed. All the five DG sets will get started when there is grid failure. All the sets will feed the load independently through the out going ACBs and there will not be any parallel operation. On restoration of Grid supply the Outgoing ACBs and incoming ACBs will get tripped and sets will get stopped. Interlocking: The Bus couplers should not be possible to close when two sides of the bus coupler breaker is live. It can be closed only on dead bus. Similarly the incoming ACBs can be closed on dead bus. if the bus is live this can be closed only with the help of synchronizing relay and not directly.



Single Line diagram and Operation Philosophy for 5 nos 2.0 MVA 415 V DG sets

Future DG



TECHNICAL DATA SHEET

ENGINE

S.No. Description Units Bidder to Indicate

1. Name of manufacturer :

2. No. of Diesel Engine :

3. Power rating of the engine @ 1500 rpm.

EkW

4. Engine rating at site condition KW

5. Model of Engine 6. Standard Rating type 7. Gross Engine BHP BHP

8. Gross Engine KW KW

9. Length (Engine Alone) mm

10. Width (Engine Alone) mm

11. Arrangement of Cylinder

12. Height (Engine Alone) mm

13. No. of Cylinders No.

14. a Bore mm

b. No. of Strokes.

15. Displacement L

16. Compression ratio No

17. BMEP of the engine KPa

18. Direction of rotation

19. Operating Speed

20. V angle Deg.

21. Fining order 22. Aspiration of engine 23. Piston speed of engine M/Sec

.

24. Max. over speed allowed (Trip set at) rpm



25. Max. Engine rating at site with 10% overload

KW

26. Total dry weight of engine Kg

27. Total wet weight of engine Kg

28. Max. allowable static bending moment at the rear face of flywheel housing

29. Friction horse power lost KW

30. Mechanical efficiency of the engine % 31. Thermal efficiency of the engine % 32. Ref. standards for these engines

33. Height of base rail used for the engine mm

Exhaust System

1. Exhaust system back pressure (max.) KPa

2. Diameter of engine exhaust outlet (inside)

mm

3. Exhaust flange details - No. of holes No. - Dia. of holes mm - PCD mm

4. No. of exhaust outlets required No.

5. Max. weight of the exhaust system Kg

6. No. of silencers supplied with each engine

No.

7. Noise reduction provided by the silencers

dB(A)

8. Restriction offered by silencers In.H20

9. Exhaust gas flow rate CPM

10. Exhaust gas flow rate M3/Min

11. Exhaust gas temp (Chimney) Deg. C

12. Exhaust silencer type Residential

13. Height of each Chimney M Heat exchangers (Shell & Tube

Type) Lube Oil Jacket

Water System System

1. No. of heat exchanger per DG set Nos.

Construction Features



1. Type

Shell side

1. Fluid circulated Lube Oil Jacket Water

2. Quantity of fluid circulated M3/hr

3. Temperature inlet C 4. Temperature outlet

C

S.No.

Description Units Bidder to Indicate

Tube Side

1. Fluid circulated Raw Cooling water

2. Quantity of fluid circulated M3/hr

3. Temperature inlet C 4. Temperature outlet C Material Specification

1. Shell

2. Tubes

3. Tube sheet

4. Gaskets

Position of Center of Gravity(Approx.)

1. Forward from rear face of the block mm 2. Above crank shaft centerline mm

3. Right of crankshaft centerline mm

Specific Fuel Consumption

1. Specif ic Fuel Consumption @ 100% load

g/bkW-Hr


g/bkW-Hr


g/bkW-Hr




g/bkW-Hr

5. Tolerance g/bkW-Hr

Fuel Consumption in Liters

1. Fuel Consumption in Liters @ 100% load

L/Hr


L/Hr


L/Hr


L/Hr

5. Tolerance considered

6. Density of fuel considered Kg/L

7. Alternator Efficiency considered %

Lube oil Consumption of the Engine

1. Lube oil Consumption @ 100% load L/Hr


S.No.




5. Recommended lube oil

6. Lube Oil change period Hrs.

7. Minimum acceptable lube oil temperature at start up

C

8. Lube oil priming pump Yes/No

9. Lube oil priming pump Engine Driven / AC motor driven / DC motor driven

10. AC motor driven stand by pump if any Included / excluded

11. DC motor driven stand by pump if any Included / excluded

Heat Rejection Details

1. Heat Rejection to coolant kW



2. Heat Rejection to exhaust kW

3. Heat Rejection to atmosphere kW

4. Heat Rejection to after cooler kW

5. Heat Rejection to the lube oil kW

6. Heat that can be recovered from exhaust

kW

7. Fuel LHV kW

8. Fuel HHV kW

Deration Details

1. Deration of the engine Altitude(normal temp)

M

2. Deration of the engine Altitude ( @ 50 deg C)

M

3. Deration of the engine Temperature Deg. C

4. Deration of the engine Humidity

5. Inlet air temperature %

6. Cooling water temperature %

7. Overall de-rating factor %

Air Intake System

1. Intake f i l ter type

2. Air intake restriction with clean element

kPa

3. Air intake restriction with dirty element

kPa

S.No.


4. Filtration capacity in microns Microns

5. Intake manifold pressure kPa

6. Max. intake manifold temperature Deg. C

7. Combustion air inlet flow rate CFM

8. Combustion air inlet flow rate M3/Min



Fuel System

1. Fuel System type

2. Filter type & No.

3. Filtration capacity (particle size) Microns

4. Full oil suction filters

5. Priming pump type AC/DC motor driven / Engine Driven

6. Fuel supply line restriction max. allowable

kPa

7. Fuel return line restriction min. allowable

kPa

8. Normal fuel pressure kPa

9. Fuel flow to transfer pump (max.) L/Hr.

10. Max. head on transfer pump static / dynamic

11. Fuel filter change recommended Hrs.

Fuel Oil System

1. No. of bulk underground storage tanks.

Nos.

2. Capacity of each underground tanks.

M3

3. Design of underground tanks conforming to IS 10987 1992

Yes / No

4. No. of fuel oi l transfer pumps Nos.

5. Fuel oi l transfer pump capacity M3 / hr

6. Motor rat ing of fuel oi l transfer pump

kW

7. Fuel oi l priming pump AC/DC motor driven / Engine Driven

8. Day tank size Litres

9. Fuel Oil suct ion f i l ters

Type and Number

Engine Construction Future

1. Turbo charger / Super charger Included / excluded



S.No.


2. Name of the manufacture

3. Number

4. Speed RPM

5. After cooler Included / excluded

6. Inter cooler Included / excluded

Lube Oil System

1. Engine lube oil capacity L

2. Refill volume with filter L

3. Sump capacity low mark level L

4. Sump capacity high mark level L

5. Sump angle Front down Deg.C

6. Sump angle Front up Deg. C

7. Sump angle Side to side Deg. C

8. Oil temp. max. Deg. C

9. Oil pressure normal range kPa