ZGS Series
American-type (pad-mounted) substation
A compact prefabricated unit integrating HV switchgear, transformer and LV distribution in a single weatherproof cabinet. Fast installation and low overall cost for estate and industrial feeders.
YB Series
European-type substation
Natural or forced-air cooling with optional fans, widely applied in urban power networks, industrial zones and large public buildings. Stable operation at ambient extremes.
| Unit | Parameter | Value |
|---|---|---|
| HV unit | Rated voltage | 11 / 33 kV |
| Rated current | 400 / 630 / 1,250 A | |
| Power-frequency withstand (1 min) | 42 / 48 kV | |
| Lightning impulse withstand | 75 / 85 kV | |
| Transformer unit | Rated voltage | 6 / 10 / 35 kV |
| Rated capacity | 30 – 2,500 kVA | |
| Vector group | Dyn0.5 / Dyn11 | |
| Impedance voltage | 4 / 4.5 / 6 / 8% | |
| LV voltage | 220 / 380 / 690 / 800 V | |
| LV unit | Main breaker rated current | 50 – 4,000 A |
| Feeder rated current | 5 – 800 A | |
| Protection class (standard) | IP33 (HV room) / IP33 (LV room) | |
| Rated frequency | 50 Hz (60 Hz on request) | |
| Noise level | ≤ 50 dB | |
Capacity 800–2,500 kVA ZGS units: no-load loss 980–2,310 W, load loss (75 °C) 7,500–20,700 W, impedance 4.5–5.5%. Full datasheets on request.