The smart way to energy !

11DS 0010-01/1000

The company was established in 1991. Our activity is: Production: • Low voltage switchgears (distribution and control panels, metering panels, SCADA panels, ...), • Panels for power factor correction: rated voltage of 0.4 kV and 6/10 kV, • Compact substation 10(20)/0,4 kV, • Panels for medium voltage metering, prepared for connecting with RMU, • Medium voltage, arc proof, air-insulated, metal clad switchgears, rated voltages 12kV, 24kV and 36kV Services: •Complete engineering for 110/35/10(20) kV Substations, •Erection works in industrial, power plants, mining, public and housing buildings, on low voltage and medium voltage levels. •Retrofit and assembling of medium voltage switchgears, •Complete engineering for medium and low voltage switchgears, substations 10(20)/0,4 kV and 35/10(20) kV, all types of electrical instalations, motor drive, monitoring, scada and control systems. •Engineering in all the aspects, designing, manufacturing and assembling. All employees have remarkable references in designing, organising and executing tasks within the company activities. In designing and organising process we use modern methods and CAD tools (Software suites Caddy++ , EPLAN, AutoCAD, ...) For completing Tasks whitin the company activities, we are equiped with (transportation equipment, CNC machines, tools, ...) as well as equipment for testing and certification of all types of installations and facilities in electricity.

11DS 0010-01/1000

Starting from 2010, DELING have been involved in creation of “ENERGOINVEST GROUP” Sarajevo and became its active member. In Bosnia and Herzegovina, we are a reliable and steady partner of many well known companies: Bosnia and Herzegovina General Electric Company and GEC of all Balkan countries: ENERGOINVEST Sarajevo INSTITUTE FOR CONSTRUCTION OF CANTON SARAJEVO Public Enterprise ”Federation Highways” Public Enterprise ”Federal Roads” Cement Factory of the region BH, Coke industry “GIKIL”, Soda factory “SISECAM”, Paper industry “Natron Hayat” Mittal Steel Coal Mining of BiH and Kosovo Republic and many other companies in the industry and the public sector, In abroad we cooperate with renowned companies, equipment manufacturers in the field of electricity: • ABB, Siemens, Schneider, Koncar, SKW, ELKA, Sitecom, Philips and others Deling cooperate with Faculty of Electrical Engineering Zagreb , Sarajevo & Tuzla Company “DELING” Ltd. has concluded the process of introducing a quality management system and from 2004 th year, is certified with ISO 9001: 2000. (Reg. Nr. 0410020041371)

11DS 0010-01/1000

Our goal is to maintain and ensure high quality of our products and services, with a steady process of improving the production process, and actively participate in the supply of domestic and foreign markets with products and services in the electric power sector.

Continuous education of employees, ensures a high level of quality for made works in all spheres of activities, in that process are involved:

1 Holder of PhD in Electrical Engineering

3 Master of Electrical Engineering

17 Graduated Electrical Engineers

1 Graduated Civil Engineer

2 Graduated Mechanical Engineers

4 Technicians of Electrical Engineering

5 Graduated of Economics and Business Administration

2 Technicians of Economics

145 Highly qualified and qualified Electricians, Locksmiths, and workers of other specialization

11DS 0010-01/1000

Vision: To be a leading private company in electro industry in the region, that will, with its development strategy, differentiated product line, management, direction and orientation toward the global European and world markets - quickly, well and reliably meet customer requirements and strive to exceed their expectations.

Production and services

overview

11DS 0010-01/1000

Production of series of compact substations is the result of long time experience and development of experts DELING Ltd company. Materials (concrete prefabricated elements and Al sheets) of which Substations are made ensure reliable and safe operations, long life, wide range of possibilities for arrangement of equipment. Wide range of types of Substations ensures the fulfillment of the most users needs.

Production of LV distribution switchgears in a modular system opens a wide range of different configurations. LV distribution switchgears include wide area of application in power distribution and industrial facilities, as well as in the service sector facilities.

New in DELING manufactory program are distribution switchgears that are manufactured and assembled by the agreement of TTA Striebel & John, Germany.

High-performance LV distribution switchgear

Compact Substations with Al and concrede housing

11DS 0010-01/1000

Production of MV metal-clad switchgears is based on TCA platform with ABB Italy and provides a wide range of possibilities for applications in power distribution and all other branches of industry, transport and service sector. DELS-24 / 12

Production

Standard compact transformer substations

10(20)/0.4 substations are intended to transform the voltage and supply consumers with electricity at low voltage. Thanks to their dimensions and external appearance they fit into any urban and industrial area.

Compact substations are produced and type tested in accordance with standards: EN 62271-202, IEC 60071, EN 60529, EN 6043-1, EN 60947-1 In licenced laboratory of Končar institute, have been made type test and we got certificates for all compact SS which are made in accordance to standard IEC 62271-202. Certificates include all types of CSS except substations with three transformers.

Names of typical compact substations

KBTS Compact concrete transformer station with outdoor operated for the installation of transformer up to 630 kVA, dimensions : 200x300x270 cm

KBTS-1 Compact concrete transformer station with outdoor operated for the installation of

transformers up to 1000 kVA, dimensions : 220x300x270 cm KBTS -1 m Compact concrete transformer station with outdoor operated for the installation of

transformers up to 1000 kVA, with the metering panel at the medium voltage, dimensions :250x300x270 cm

KBTS-2 Compact concrete transformer station with outdoor operated for the installation of

transformers up to 2x1000 kVA, dimensions : 240x420x270 cm KBTS-2 m Compact concrete transformer station with outdoor operated for mounting the

transformer to 2x1000kVA, with the metering panel at the medium voltage, dimensions : 250x420x270 cm

KBTS-3 Compact concrete transformer station with outdoor operated for the installation of

transformers up to 3x1000 kVA, dimensions : 250x594x270 cm

KBTS-1-up Compact concrete transformer station with indoor operated for the installation of the transformers up to 1000 kVA, dimensions: 220x420x270 cm

(options: enclosure dimensions 240x420x270 cm, 250x420x270 cm)

BTS-2-up Compact concrete transformer station with indoor operated for the installation of the transformers up to 2x1000 kVA, dimensions: 332x500x270 cm

KBTS-3-up Compact concrete transformer station with indoor operated for the installation of the transformers up to 3x1000 kVA, dimensions: 500x500x270 cm KALTS-1 Al - sheet compact transformer substation with outdoor operated for the installation

of transformers up to 1000 kVA, dimensions of TS: 220x300x275 cm LMTS Al - sheet compact transformer substation with outdoor operated for the installation

of transformers up to 630 kVA, dimensions of TS: 213x213x270 cm LMTS – 250 Al - brass compact transformer substation with outdoor operated for the

installation of transformers of 250 kVA, dimensions of TS: 190x190x228 cm

UN

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UN

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-240

kV

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630

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SN

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KBTS-1 Disposal of equipment in KBTS-1-m

Compact substations are divided by type into two main groups and two subgroups: Group 1 consists the KBTS types Enclosure of various sizes are made of AB base, bearing steel structures and reinforced concrete prefabricated elements, who form the body of the SS, and a concrete or Al roof. Ventilation doors and blinds are made of aluminum, corrosion protected is realised with electrostatic powder coating and facades color based on relief or optionally by the Purchaser order, substations have a high degree of natural ventilation. The subgroup is divided into SS with outdoor and indoor operated.

Compact substations have the application in the terms of the aggressive environment (humidity, solar radiation, dust, salt fog).

KBTS

420

220

SN

blo

k 3

V+

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KBTS-1-up; indoor operated Disposal of equipment in KBTS-1-up

300

200

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KBTS outdoor operated

KBTS-2-up; indoor operated N

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B-1

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250 250

332

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Disposal of equipment in KBTS-2-up indoor operated

Disposal of equipment in KBTS-2-up; outdoor operated KBTS-2; outdoor operated

+LVC1 +LVC2

+M

VC

1

+T1

1000 kVA

+T2

1000 kVA

MDB-16 MDB-16

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250

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Group 2 consists the LMTS types ... Housing of different sizes are made from the concrete base, corrosion protected steel structure and prefabricated profile components made of aluminum sheet δ = 3mm, which form the construction and body of SS. The roof is a compact, consisted of prefabricated profiles, and ventiation doors are also made of sheet aluminum δ = 3mm. All the elements of LMTS are protected against corrosion with electrostatic process of painting , painted in light gray or color as desired by request of customer. LMTS were grouped in the compact substation subgroup with the outdoor operated.

LMTS in phase of production

• Passing or node with cable connection • Quick and easy installation • Long life with minimum maintenance • Reliable operation • Wide range of possibilities for equipment arrangement • Option for addition housing unit

In the substation is possible to install SF6 insulated MV switchgear of different manufacturers and types, and in SS with indoor operated as well as other types of MV switchgears. LV assemblies are the standard, distributive, or combined depending on the requirements of the customer, and it is possible to place automatic panel for power factor correction. Into the transformer boxes is possible to mount reconnectable transformers up to 1000 kVA, under which in the plane of concrete basehave beeb installed metal oil tube for collecting of possibly leakage oil.

Jahorina 2000 m

Compact and solid construction enables the transport and installation in off road places

Easy and fast installation, on the “AB” prepared base

Properties and characteristics:

Low-voltage distribution switchgears

Transport: Airports, ports, railways Service Sector: Shopping centers, hospitals, and infrastructural facilities

Application areas: Power plants for production and distribution of electricity: power plants (hydro and thermal), substations, main and auxiliary plants Industry: Paper, chemical, food processing, cement and petrochemical industry

Production and assemblage LV switchgears for distribution according to the TTA Agreement: DELING - ABB Sriebel & John Germany

Characteristics of LV distribution switchgears LV switchgears are intended for distribution of electricity and control of electrical drives and processes in industry at the low-voltage level. They are produced for short circuit currents up to 60 kA, and type tested up to 2500 A. Above 60 kA and up to 4000A distribution switchgears are manufactured and assembled by standardized configurations (agreement by ABB Striebel & John) and have a status of type tested assembly switchgears, with short circuit currents up to 100KA. The structure of switchgears is made of perforated two pickled steel sheet thickness of δ = 2.5 mm, interconnected by welding or using the technology of assembly with prefabricated profiles and corner fixing casts, licensed by Striebel & John. The front door opens to the angle of 120°, and side as well back sides according to demands or as fixed covers. Cover with a lock or a combination of fixed and hinged cover door can be used for access to equipment from the back side. Swinghandle on the front door has three point of fixing. For placing equipment inside the switchgears a vertical and horizontal supporting frames are used, they are made of perforated steel plate pickled δ = (2 - 3) mm. The switchgear is composed of structures consisting of modular kits which can be built up in different combinations able to cover applications in distribution. IP degree of protection, depending on the conditions and the installation site, is IP20 to IP55. High level of IP protection is achieved by using automated technology for placement polyurethane seals on doors and switchgear covers. Corrosion protection is performed by electrostatic powder coating, in standard RAL 7032/7035 color or in the shade as required by the Purchaser.

Switchgear dimensions are standard, but depending of the conditions on site they may be different. The standard dimensions for switchgears are: Freestanding type ISL: Width 400-1200mm, Depth 400-900 mm, Height 1600-2200mm. Upgraded/Installed Locker NL type: Width 400-1400mm, Depth 200-350 mm, Height 550-1400mm.

Examples of application for different models of switchgears

Distribution switchgears to be used in subdistribution, power supply and motor drives, etc.

Automatic device for power factor corerction:

AKU-N-400

• Undamped with a small proportion of higher harmonics • Damped with a greater proportion of higher harmonics • Damped -dynamic for consumers of faster pulse

Panels for quick installation, wired and prepared for installation in

distribution switchgears

Cable distribution switchgears for

outdoor installation

LV switchgear for installation in substation with indoor

operated

Switchgears for SCADA systems, protections, measurement of electric energy transmission, assembling of communication and information processing equipment

Distribution switchgears for IT systems; special applications in medical facilities

Distribution switchgears for the main purpose of distribution, IT systems, secondary distribution, ...

Production of switchgears is based on a modular system, so that opens up a vide range of configurations options. Free standing wall and distribution switchgears in the IP30 - IP54 protection are completed with PVC insulation panels, which use completely prevented accidental contact with parts of live elements.

Production and assemblage of the LV switchgears for distribution to the TTA Agreement: DELING - ABB Striebel & John Germany

Distribution switchgears manufactured and assembled by the standardized configurations have the status of type tested assembly switchgears. Verification of compliance with the standard configuration does Striebel & John, and also verifies the type-approval for the assembled switchgear according to verified scheme.

RO – primary distribution RO – secondary distribution

Technical characteristic of LV switchgears according to standards: IEC 60439-1 (EN 60439-1)/ IEC 61439-1, IEC 61439-2 Rated operation voltage (Ue) ................ Up to 690V Rated isolation voltage (Ui) ................. Up to 1000V Rated frequency ............................... 50-60Hz Rated impulse withstand voltage ................ 8kV Rated current ................................ Up to In=4000A Rated maximum withstand current (Ipk) 0,1 sec .... Up to 220 kA Rated short-circuit withstand current (Icw) 1,0 sec ... Up to 100 kA

Quick installation panels, wired and prepared

for installation in distribution switchgears

High level of technical quality for low voltage switchgear have been verified by type testing of main distribution panels of type MDB for current up to 2500 A, made in Končar institute which have licence from: EA european co-operation for Accreditation

D E L S

Medium voltage, metal-clad, air-insulated, arc proof switchgears

Main features of DELS switchgear Metal-clad, air insulated switchgear. Intended for energy distribution on medium voltage level, for indoor installation, arc proof testing. Parts of the switchgear are separated by metal barriers that are connected with cell grounding, and the parts that are under voltage are in the air. It is equipped with a mechanical safety blocks, and switching devices and earthing are controlled from the front with door closed. Commissioning, maintenance and service can be implemented from the front of the switchgear. Provides a wide range of functionality with any application, it is easy to configure, with wide selection of equipment for installation: gas and vacuum circiut breaker, V contact, the standard current and voltage transformers or power sensors of new generation. Switchgear was performed with modular assembly which eases montage of standard cells one to another in a coordinated manner. DELS switchgear allows : High availability and reliability Complete sefety of personnel Minimal maintenance Protection against the faulty handling Fast and easy installation

Applications: Utilities and Power plants Power generations (hydro and thermal), Transformer stations Switching stations Main and auxillary switchgears. Transportation: Airports, ports, railways Industry: Paper, chemical, food processing, cement and petrochemical industry Service sector: Shopping centers, Hospitals, spetial and infrastructure facilities

Single level section view for switchgear 12kV i 24kV

Single level section view for switchgear 36kV

Type tests in CESI Milano

Preparation of panels for the arc proof testing

Panels during the arc proof testing

Type tests of the DELS switchgear have been performed in the CESI laboratories in Milano, in accordance with IEC 62271-200 standard Voltage (insulation) test Temperature rise test Short-circuit tests Switchgear is particularly tested on internal arc (arc proof testing)

Voltage Tests

Panel prepared for the short-circuit testing

Type tests of the DELS switchgear have been performed according to standard IEC 62271-200 in accredited laboratories of KONČAR Institut Zagreb,

Switchgear 12kV instaled in addition of wall mounted switchgear

Electrical characteristics of switchgears

Switchgear of series DELS

Type of switchgear DELS DELS-24 DELS-36

Rated voltage kV 7,2 12 24 36

Rated insulating voltage kV 7,2 12 24 36

Test voltege at power frequency kV (1min) 20 28 50 70

Impulse withstand voltage kV 60 75 125 170

Rated frequency Hz 50 50 50 50

Rated short-time withstand current

Peak current kA 3s

31,5

(16÷31,5)

31,5

(16÷31,5)

25

(16÷25)

25

(16÷25)

Making capacity kA 80

(40÷80)

80

(40÷80)

63

(40÷63)

63

(40÷63)

Internal arc withstand current kA 1s 31,5 31,5 25 25

Main busbar rated current A 630 - 2500 630 - 2500 630 - 2500 630 - 1250

Rated current of the branch

connections A 630 - 2500 630 - 2500 630 - 2500 630 - 1250

Panel dimensions

Type of Switchgears DELS DELS-24 DELS-36

Rated voltage [kV] 12 24 36

Rated current [A] 1250 2000 2500 1250 2500 1250

Width (L) [mm] 600 750 1000 750 1000 1000

Depth (P) [mm] 1550 1900 2400

Hight (H) (A1 without gas channel) [mm] 2160 2160 2310

Hight (H) (A2 with gas channel) [mm] 2600 2600 2662

Services

11DS 0010-01/1000

Erection works in industrial, power plants, public and housing buildings, and mining on low voltage and medium voltage levels. Retrofit and assembling of medium voltage switchgears.

Transportation: Airports, ports, railways

Industry: Paper, chemical, food processing, cement and petrochemical industry

Service Sector: Shopping centers, hospitals, hotels, physical and infrastructural facilities

Applications: Utilities and Power plants Power generations (hydro and thermal), Transformer stations Switching stations Main and auxillary switchgears.

11DS 0010-01/1000

Excerpt from the list of characteristcs and reference objects

The construction and retrofit of facilities 35/10 (20) kV More than 25 facilities in Bosnia and Herzegovina: Brcko District, Zeleni Jadar-Srebrenica, Nemila, Gornji Vakuf, etc.

Many substation are revitalised by using diffrent types of retrofit.

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Excerpt from the list of characteristcs and reference objects

The construction Container substation 35/10 (20) kV More than 10 facilities in Bosnia and Herzegovina: Tinja, Žitoprerada Mihaljevac-Cazin, etc.

Container substation 35/10kV “Tinja”

Container substation 35/10(20)kV “Žitoprerada“ Metal-clad Switchgear 24 kV installed into

CSS 35/10(20)kV “Žitoprerada“

11DS 0010-01/1000

Excerpt from the list of characteristcs and reference objects

Industry: Paper, chemical, food processing, cement and petrochemical industry

Natron Hayat (paper industry) Reconstruction and automation of electric drive in facility and power plant

Cement factory LUKAVAC Erection electro works - retrofiting the 35 kV and 10 kV cubicles Producing and assembly of new 10 (7.2) kV switchgears

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Excerpt from the list of characteristcs and reference objects

Mining of lignite KREKA - Tuzla Open pit Dubrave Dredge SRs402 before starting of reconstruction

Dredge SRs402 after reconstruction Phase of trial work

Mining:

Project: Reconstruction of dredge SRs 402

Dredge SRs402 out of function Reconstructed dredge SRs402 in phase of trial work

Despription of done activity: Design of main project of reconstruction Manufacturing of MV and LV switchgears and cubicles Delivery and instalation af lighting fixtures. Mounting of electro equipment and laying of cables System parametring Commissioning and measurements Putting into operation of dredge

Phase of mounting and testing

Retrofiting of the 6 kV block 5 “TPP Tuzla”

Reference works on reconstruction and retrofitting of power plants and industrial facilities are numerous and highly rated by users

11DS 0010-01/1000

Powerplants (hidro and thermo) Transformer substations, Generator panels Main and auxiliary facilities

Some of the switchgears in which we have successfully done retrofit and reconstruction are: TPP Tuzla; blocks 3, 4, 5 and 6 Pump station Modrac TPP Kakanj; block 5 and 7 HPP on Neretva: HPP Jablanica, HE Grabovica, HE Salakovac Small hydro power plants in Bosnia, Iran, Sri Lanka

6kV switchgear before retrofiting

6 kV switchgear of block 5 during the retrofit phase

6 kV block 5 switchgear after retrofiting

6 kV switchgear after retrofiting “PUMP STATION MODRAC Tuzla”

11DS 0010-01/1000

Reconstruction of the connection block transformer 4 240 MVA “TPP Tuzla”

Replacement of the Block transformer 6 270 MVA “TPP Tuzla”

Powerplants (hidro and thermo) Generator panels Main and auxiliary facilities

Reference works on reconstruction of power plants and industrial facilities are numerous and highly rated by users

11DS 0010-01/1000

Installation of generator circuit breakers AREVA and reconstruction of the connections and

enclosed busbars – “TPP Kakanj"

Powerplants (hidro and thermo) Generator panels Main and auxiliary facilities

Generator Circuit breaker “ABB” TPP Kakanj-Block 6

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Small Hydro Power Plant

SHPP VITEZ 2 MVA MH POL KOOLO 2 – ISLAMYC REPUBLIC of IRAN POWER 3x2,4 MW MH MAGAL GANGA – SCHRI LANKA, POWER 4x2,5 MW and many odher ...

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Installation the new CB 110kV and

Busbar system reconstruction of 110kV switchyard

Reconstruction of Substation 110 kV “TPP KAKANJ”

The new110kV switchyard “TPP Tuzla”

Old 220kV switchyard before reconstraction

Reconstruction of Substation 220/110 kV “TPP Tuzla”

Installation of new 220kV equpment in switchyard

11DS 0010-01/1000

Reference for this electric works are many and highly rated from user, this kind of work have been done in BiH, Monte Negro, Italy, Germany.

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Bosnian Institut in Sarajevo,

Design, delivery and mounting of equipment, performing works for installations of outdoor lighting.

Hotel Bristol Sarajevo,

Delivery and mounting of equipment, execution of all type of electro instalations.

Instalations in power supply, safety systems, communications, control and monitoring.

Service Sector: Shopping centers, hospitals, hotels,

VF commerce, Mercator, BBI Center, Mercur, ... Business Center: Lake (SA), ... Hotels: “Bristol” SA, “Budva”, ... Hospitals: KCU Sarajevo, Tuzla BH Srce Infrastructure facilities: Bjelasnica-Igman, Rosulje-Sarajevo, Vlasic, ...

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Mercator center Tuzla,

Delivery, mounting of equipment and performing of all types works for electro installations.

Busisness center BBI Sarajevo,

Delivery, mounting of equipment and performing of all types of works for electro installations.

Installations: power supply, safety systems, comunication, monitoring and control via PLC.

Service Sector: Shopping centers, hospitals, hotels,

11DS 0010-01/1000

Installations:

power supply,

Safety systems,

Communications

control and monitoring

Heart center BH Tuzla

Main design,

Delivery, mounting of equipment and performing of all types works for electro installations.

Service Sector: Shopping centers, hospitals, hotels,

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Tunnel “KARAULA” on main road M17

Manufacturing and delivery of equipment, Performing of electromounting works on electrification of tunnel.

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Public lighting Jošanica,

Delivery and mounting of equipment, performing of electro installation works on public lighting.

Service Sector: physical and infrastructural facilities

Transportation: Reconstruction and producing of Substation 2x630 kVA “Airport TIVAT”, Monte Negro

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Electrification of tunnel“Ormanica”

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Electrification of tunnel“Oštrik in construction”

Electrification of tunnel“Oštrik in construction”

Service Sector: physical and infrastructural facilities

RETROFIT

PLANT

Replacement of the main parts of the Switchgear

4DS 0009-12/400

Retrofit of switchgear have their optimum use in medium voltage substations and electrical industrial plants of 12(7.2) kV

Benefits of retrofit: • Quick replacement of breaking elements, and it significantly prolong the effective liftime of switchgear

• Enhanced availability and operational reliability by reducing the risk of failure.

• The outage required to complete a retrofit is much shorter in duration than that required to replace a switchboard.

• Maintains compliance with evolving industry standards and legislation.

• Phased modernisation of your installation increases budgetary and operational flexibility.

• No substation redesign work and construction investment

The smart way to energy!

Unmodified busbar system

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Retrofit Type 1: Near-wall type plant, metal enclosed cubicle with fixed low oil circuit breaker etc, measuring transformers, disconnectors.

Retrofit installation is done by mounting pannels with removable CB and screw spindle for positioning into service and test position. This type of "PowerCube" panel may be with or without earthing switch. Replacement of the measurement transformers is carried out depending on the age and technical parameters. Busbar disconnector can be retained optionally, replaced or disassembled.

The old part of facility Part of facility after retrofit

Facility after retrofit

Retrofit Type 2: switchgear with fixed low oil CB with the pull cart, cubicle type NS900 Energoinvest etc.

Retrofit is performed by installing a fixed CB onto base with flexible connections to existing or replaced conductive insulator - connector. The toggle elements are prearranged to achieve the blocking function for preventing incorrect manipulations, according to appropriate standards. The LV boxes are fitted with protective, monitoring and controling equipment. Measuring transformers are replaced and built at the same position.

The existing switchgear with the low oil CB

Removeable part of cubicle with fixed switchgear

Removeable part of cubicle after retrofit with fixed CB

Retrofit installation is done by mounting pannels with withdrawable circuit breaker and screw spindle for positioning into operating and test position. Cassettes can be with or without earthing switch , and is equipped with movable metallic shutters across the contact terminals and blockings to prevent incorrect manipulation of the circuit breaker and earthing switch.

New

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B

Fixed CB on pull carts

Switchgear before retrofiting

Front view of cubicle after retrofit

Retrofit Type 3:

Plant with fixed low-oil-circuit breaker with the pull cart, cubicle type NS900 Energoinvest etc.

Wit

hra

wab

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B

Retrofit Type 3:

Switchgear with fixed low-oil-CB with the pull cart, cubicle type NS900 Energoinvest etc.

Retrofit installation is done by mounting pannels with withdrawable circuit breaker and screw spindle for positioning into service and test position.

The LV boxes are fitted with the protective, monitoring and controling equipment. Measuring transformers were replaced and built at the same position.

Switchgear after the retrofiting

Switchgear in the retrofiting phase Switchgear in the retrofiting phase

Back and fixed side of the facility after retrofiting. Busbar system wasn’t changed while all other Cu connections are.

From practical experience, the parts of switchgear that are subjected to intensive wear are the contact assemblies and operating mechanisms of circuit breakers, as well as the electromechanical relays. Metal enclosures, busbar arrangement supporting frames, insulators, secondary wiring and transformers age less rapidly and their remaining lifetime is comparable to that of a new installation. Replacment of worn-out componentes with more modern, sophisticated ones provides not only failure-free operation but improved system performance.

Compered to the demolition of the substations and erection of new ones, retrofiting has the following advantages: -(60÷70) % the price of a new installation - No demolition and construction investment -No approval procedures -Minimum idle time -Short fulfillment time

Retrofit cubicle Type EDR-900

Retrofit cubicle type EDR-900, produced as a replacement for the type of cubicle NS900, Energoinvest production of the 1980'

Fixed part of NS900 Energoinvest cubicle

• new measurement transformers are installed

•Fixed part of cubicle and the cable entrance position remain unchanged

• Busbar system, with eventual replacement of insulators, remains unchanged

Retrofit cubicle Type EDR-900

Retrofit cubicle type EDR-900, produced as a replacement for the type of cubicle NS900, Energoinvest production of the 1980'

Assembly drawing of retrofit cubicle

EDR-900 and the remaining fixed part of an

existing cubicle type NS900 Energoinvest.

Fixed part of NS900 Energoinvest cubicle

1

2

3

4

3

2

4

Fixed part of NS900 Energoinvest cubicle

(new measurement transformers are installed and

insulators if needed)

Retrofit cubicle Tip EDR-900, is consisted of:

1.Freestanding – self supported steel construction

2.Casset for placing the withdrawable CB, with monoblocks

3.Compartment for the LV equipment for protection, control and operation,

4.Cable compartment for accesing to the cable section

75000 Tuzla, Šići bb , Bosnia & Herzegovina tel +387 35 32 01 00 Fax + 387 35 21 55 05 http//www.deling.ba e-mail: office@deling.ba

References of products delivery, instaltion and services have been recorded in:

• Thermal and hydro power plants, small hydropower plants, • Substations for primary distribution and cable networks, • Main and auxiliary facilities; • Airports • Paper, chemical, cement and food industries, • Shopping malls, hospitals, • Infrastructural facilities

Complex DELING spreads on 12.000 m2 with manufacturing and business areas of 6.000 m2