132/11 kV, 25 MVA MOBILE SUBSTATION - Končar âČAR POWER PLANT AND ELECTRIC TRACTION ENGINEERING INC. ZAGREB – REPUBLIC OF CROATIA DEVELOPMENT PROJECT 132/11 kV, 25 MVA MOBILE

KONââČAR POWER PLANT AND ELECTRIC TRACTION ENGINEERING INC.

ZAGREB – REPUBLIC OF CROATIA

DEVELOPMENT PROJECT 132/11 kV, 25 MVA MOBILE SUBSTATION

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Project No.: 8350-10-13-001

Document No: Exx-101 rev N

File name: Mob EN katalog1 Zagreb, 11.11.2014. Page: 1 od 9

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RP

017.0

2E

RE

V. 3

132/11 kV, 25 MVA MOBILE SUBSTATION




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Project No.: 8350-10-13-001



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RP

017.0

2E

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V. 3

132/11 kV, 25 MVA MOBILE SUBSTATION

Summary

Mobile substation consists of two semi-trailers. One trailer is for 132 kV equipment (HV

equipment) and another trailer is for medium voltage (MV) and auxiliary equipment.

HV semi-trailer

HV semi-trailer is equipped with power transformer 132/11 kV, 25 MVA, 132 kV apparatus

(PASS combination - circuit breaker, disconnector with earthing switch) and 120 kV surge

arrestor. Neutral of power transformer is connected over 80 kV surge arrestor and disconnector

with earthing grid. Auxiliary transformer 11/0,4 kV; 100 kVA is also connected to medium

voltage terminals of power transformer.

MV semi-trailer

One container and two cable drums with medium voltage cables are situated on medium

voltage semi-trailer. Container is equipped with seven 11 kV cubicles, 0,4 kV distribution, DC

distributions (110 VDC and 48 VDC) and secondary equipment (metering, measuring,

protection, telecommunication). Container is air conditioned (heating and cooling).

Applications

Mobile substation is useful in case of:

- Refurbishment or maintenance of existing substations when uninterrupted supply is

required

- Natural disasters (earthquake, flood, ice rain, big snow, lightning)

- Unexpecting faults (fire of power transformer)

- Temporary supply of some site or industrial plant.

Mobile substation data

Service conditions

Climatic conditions are as follows:

- Altitude above sea level < 1000 m

- Ambient temperatures from -20°C to +55°C

- Humidity < 92%

- Wind velocity < 145 km/h

Specification of 132 kV electrical system

- Rated voltage 132 kV




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Project No.: 8350-10-13-001



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RP

017.0

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V. 3

- Highest system voltage of equipment 145 kV

- Power frequency system voltage (1 min, 50 Hz) 275 kV

- Impulse withstand voltage 1,2/50 µs 650 kV

- Rated current 630 A

- Rated breaking capacity 40 kA

Specification of 11 kV electrical system

- Rated voltage 11 kV

- Highest system voltage of equipment 12 kV

- Power frequency system voltage (1 min, 50 Hz) 28 kV

- Impulse withstand voltage 1,2/50 µs 75 kV

- Rated current transformer bay 1600 A

- Rated current outgoing bays 300 A

- Rated breaking capacity 31,5 kA

General traveling conditions of mobile substations

Speed:

- Maximum speed: for paved road 40 km/h

- for unpaved road 10 km/h

- Cruising speed for paved road 35 km/h

Dimension of mobile substation:

- Height from the ground to the highest top of equipment 4,5 m

- Width including any protruding part of equipment 3,4 m

- Longitudinal length 20,0 m

Trailer is provided with one set of mechanical type 3-axis accelerometer (impact recorder).

Acceleration should be less than 2g (2x9,81 m/s2 ).




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Project No.: 8350-10-13-001



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RP

017.0

2E

RE

V. 3

SUBSTATION SINGLE LINE DIAGRAM




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Project No.: 8350-10-13-001



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RP

017.0

2E

RE

V. 3

SNGLE LINE DIAGRAM OF 132 kV PLANT




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Project No.: 8350-10-13-001



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RP

017.0

2E

RE

V. 3

SNGLE LINE DIAGRAM OF 11 kV SWITCHGEAR




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Project No.: 8350-10-13-001



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RP

017.0

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V. 3

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HV SEMI-TRAILER




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Project No.: 8350-10-13-001



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Project No.: 8350-10-13-001



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RP

017.0

2E

RE

V. 3

3-D PICTURE OF HV SEMI-TRAILER

Documents

132/11 kV, 25 MVA MOBILE SUBSTATION - Končar âČAR POWER PLANT AND ELECTRIC TRACTION ENGINEERING INC. ZAGREB – REPUBLIC OF CROATIA DEVELOPMENT PROJECT 132/11 kV, 25 MVA MOBILE