132/11 kv, 25 MVA MOBILE SUBSTATION

Transcription

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

2 Summary Mobile substation consists of two semitrailers. One trailer is for 132 kv equipment (HV equipment) and another trailer is for medium voltage (MV) and auxiliary equipment. HV semitrailer HV semitrailer 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 semitrailer One container and two cable drums with medium voltage cables are situated on medium voltage semitrailer. 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 File name: Mob EN katalog1 Zagreb, Page: 2 od 9

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 3axis accelerometer (impact recorder). Acceleration should be less than 2g (2x9,81 m/s 2 ). File name: Mob EN katalog1 Zagreb, Page: 3 od 9

4 SUBSTATION SINGLE LINE DIAGRAM File name: Mob EN katalog1 Zagreb, Page: 4 od 9

5 SNGLE LINE DIAGRAM OF 132 kv PLANT File name: Mob EN katalog1 Zagreb, Page: 5 od 9

6 SNGLE LINE DIAGRAM OF 11 kv SWITCHGEAR File name: Mob EN katalog1 Zagreb, Page: 6 od 9

7 TOTAL WEIGHT = kg HV SEMITRAILER File name: Mob EN katalog1 Zagreb, Page: 7 od 9

8 RECTIFIER 2 BATTERIES RECTIFIER 1 BATTERIES BATTERIES 48 V DC DISTRIB. 48 V DC 110 V DC DISTRIB. 110 V DC 110 V DC CONTROL& 400 V AC PROTECTION TELECOMMUNICATION METERING SCADA DISTRIBUTION INTERFACE =K07 =K06 =K05 =K04 TOTAL WEIGHT = kg =K07 =K06 =K05 =K04 =K03 =K02 =K01 TO THE MV CONNECTION BOX OF POWER TRANSFORMER =K03 =K02 =K01 CABLE DRUM CABLE DRUM 2800 kg 2800 kg CABLES CABLES CABLES CABLES CONTROL& 400 V AC PROTECTION TELECOMMUNICATION METERING SCADA DISTRIBUTION INTERFACE CABLE DRUM CABLE DRUM 2800 kg 2800 kg MV SEMITRAILER File name: Mob EN katalog1 Zagreb, Page: 8 od 9

9 3D PICTURE OF HV SEMITRAILER File name: Mob EN katalog1 Zagreb, Page: 9 od 9