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YBW-12Outdoor prefabricated substation
1.General Description:
YBW-12 outdoor substation is a 12-40.5 KV &50HZ outdoor substation with function of high voltage control, protect, power transformation and distribution. It can be used in high-rise buildings, building in urban and rural areas, residential communities ,high-tech development areas, small and medium size factories, mining areas, oil fields, temporary construction sites, and other premises.
2.Working Conditions
1.Ambient air temperature: -30°C~+40°C
2.Altitude: ≤1000m
3.Wind speed:34m/s ≤700pa
4.Relative humidity: Daily average relative humidity≤95%.
Monthly average relative humidity≤95%.
5.Installation inclination:≤grade 8 .
6.Applicable in the places without corrosive and flammable gas.
Note: Customized products are available.
3.Technical data
Transformer
No. | Rated voltage | Rated capacity | No-load current % S9、S10/S11 |
1 | 6,6.3,10 | 30~1600 | 0.5~2.2 |
Current transformer
Type | Rated primary current | Rated secondary current | Accuracy class | No less than 10 times | Secondary Load |
LCZ-35Q | 40~500 | 1000~2000 | 0.5/10P10 | 10 | 50 |
LZJC-10 | 100~1000 | 1000~2000 | 0.5/10P10 |
Load switch
Item | Unit | Data | |
Rated voltage | kV | 12 | |
Power frequency withstand voltage/1min(effective value) | kV | 42 | |
Peak lighting impulse withstand voltage | kV | 75 | |
Rated frequency | Hz | 50 | |
Rated current | A | 315 | 630 |
Rated short circuit breaking current | kA | 12.5 | 16 |
Rated withstand current(peak) | kA | 31.5 | 40 |
Rated short time withstand current | kA | 12.5 | 16 |
Rated short circuit sustained current | s | 4 | |
Rated short circuit making current | kA | 31.5、40 | |
Mechanical life | Time | 2000 | |
4.Overall drawing
Circuit breaker series 
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