The ZGS11 Prefabricated Substation is a turnkey solution combining transformers, switchgear, and protection in a fully insulated, sealed kiosk. Its ultra-compact design reduces volume by up to 80% compared to traditional European styles, making it ideal for urban, industrial, or remote sites. A split-cabin layout segregates transformer oil chambers to avoid contamination, while dual full-range HV fuses and optional RMU or termination switchgear with load-break connectors deliver flexible network configurations.
Equipped with intelligent features—such as electronic phase-failure protection and beehive composite panels for superior thermal separation—the ZGS11 also supports oil-immersed or SF₆ load switches with future-ready motorized operation. Compatible with S13 or S20 series distribution transformers, it provides reliable, low-maintenance power distribution for utilities, commercial complexes, and challenging environments.
| TECHNICAL SPECIFICATION | Main technical data of the substation | |
| Description | Unit | Specifications |
| Rated voltage | KV | 10/0.4 (HV/LV) |
| Max.operating voltage | KV | 12 (HV compartment) |
| Rated frequency | Hz | 50 |
| Rated apacity | KVA | 50-1600 |
| Rated power frequency withstand voltage (1min) | KV | 35 |
| Rated lighting impulse withstand voltage | KV | 75 |
| Cooling | Oil-immersed self-cooled | |
| Rated breaking current of high voltage backup fuse | KA | 50 |
| Rated breaking current of plug-in fuse | KA | 2.5 |
| Air temperature | ℃ | -35~+30 |
| Coil temperature rise | ℃ | 65 |
| No load tap | ±5% or ±2×2.5% | |
| Noise Level | db | 50 |
| Degree of protection | IP43 | |
