Box Substation
ZGS13 Pad-mounted Substation (American-type)
Compact American-type prefabricated substation with oil transformer, 1/3–1/5 the volume of European type.
ZGS13 is an American-type combined transformer (pad-mounted substation) integrating high-voltage switch, an oil-immersed transformer and low-voltage distribution in a fully insulated, fully sealed enclosure. Its volume is only 1/3 to 1/5 of a comparable European-type box substation, shortening civil works and commissioning.
Key Technical Parameters
| Rated voltage | 10(6) kV (HV) / 0.4 kV (LV) |
|---|---|
| Transformer | oil-immersed S9 / S11 |
| HV protection | dual high-voltage fuses, full-range |
| LV protection | electronic phase-loss protection |
| Enclosure | fully insulated, fully sealed, low-maintenance |
| Ambient temperature | -35 °C to +40 °C |
| Altitude | up to 1000 m |
| Standards | GB/T 17467, IEC 62271-202 |
Structure & Features
- Compartmentalized HV / transformer / LV sections; 200A load current pluggable cable on HV side.
- Volume 1/3–1/5 of European-type box substation.
Application Scenarios
- Residential quarters, industrial parks, roads and temporary sites where space is limited.
Model Designation & Variants
- ZGS = combined transformer (prefabricated substation); □□ = design series; /□-□ = HV voltage / LV voltage / transformer capacity.