Compact Substation
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Item | HV unit | Transformer | LV unit |
Rated voltage (kV) | 400,630,1250 | 10(11)/12, 35/40.5 | 690 |
Rated current (A) | 50~4000 | ||
Rated capacity (kV/A) | 30~2500 | ||
Rated short-time withstand current (kA) | 12.5(2s or 4s), 16(2s or 4s), 20(2s or 4s) | ||
Rated peak withstand current (kA) | 31.5,40,50 |
Item | HV unit | Transformer | LV unit |
Rated voltage (kV) | 12 | 12/0.4 | 0.4 |
Rated current (A) | 630 | 100-2500 | |
Rated capacity (kV/A) | 30~1600 | ||
Rated short-time withstand current (kA) | 20/3 | ||
Rated peak withstand current (kA) | 50 | 30/1 |
Item | LBS |
Rated voltage (kV) | 12 |
Rated current (A) | 315, 630 |
Impulse withstand voltage (kV) | 75 |
Rated short-time withstand current (kA/s) | 12.5/2,16/4 |
Rated peak withstand current (kA) | 31.5,40 |
1. Altitude: 1000m;
2. Ambient temperature: -25 ~ 40 ;
3. Wind speed: 34m/s (Wind pressure: 700Pa);
4. Ice thickness: 20mm;
5. Relative humidity: daily average 95%, monthly average 90%;
6. Without fiercely shake and impulse;
7. Occasions without flammable, explosive, serious pollution and chemical corrosion.
Item | HV unit | Transformer | LV unit |
Rated voltage (kV) | 12 | 11/0.4 | 0.4 |
Rated current (A) | 630 | 144~2309 | |
Rated capacity (kV/A) | 100~1600 | ||
Rated short-circuit withstand current (kA/s) | 20~31.5(CB) | 30/1 | |
Rated peak withstand current (kA) | 50~80(CB) | 63 |
Item | HV side | Transformer | LV unit |
Rated voltage (kV) | 12 | 0.4 | |
Rated current (A) | 630(200) | ||
Rated frequency (Hz) | 50 | 50 | 50 |
Rated short-time withstand current (kA/s) | 20/3 | ||
Rated peak withstand current (kA) | 50 |
The YB-Z▪D-12 Underground Compact Substation is a kind of compact substation which can be semi-underground or fully-underground. It is underground, so the noise pollution and electromagnetic radiation can be reduced. Thus, YB-Z▪D-12 Underground Compact Substation is suitable for cities with large population density. It can be used for illumination and power distribution in the street, airport, port, tour sites etc.
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