Overview
XGN2-12 fixed type metal-enclosed switchgear (referred to as switchgear) is used in 3.6, 7.2, 12KV three-phase AC 50Hz systems to receive and distribute electric energy. It is suitable for frequent operation occasions. The busbar system is a single busbar (single busbar with bypass and double busbar structure can be derived). It complies with GB 3906 “3~35KV AC Metal-enclosed Switchgear” and IEC298 stan-dards, with “five-protection” locking function.
The main switch adopts ZN28-12 series vacuum circuit breaker, equipped with CD17 series electromagnetic operating mechanism or CT19 series spring op-erating mechanism, and the disconnector adopts GN30-12 rotary or GN22-12 high current disconnector.
Operating Conditions
1. Ambient temperature: upper limit + 40℃, lower limit ‒5℃;
2. Altitude: ≤1000m;
3. Relative humidity: daily average 95%, monthly average 90%;
4. Seismic resistance: 8 magnitude;
5. Places without fire, explosion hazard, serious pollution, chemical corro-sion and severe vibration;
6. Exceeding environmental conditions requires negotiation with the manu-facturer.
Model and meaning
Technical Specification
| Item | Unit | Parameters | |||||
| Rated Voltage | kV | 3.6, 7.2, 12 | |||||
| Rated Current | A | 630 – 2500 | |||||
| Maximum Working Current | 630 | 1000 | 1250 | 2000 | 2500 | 3150 | |
| Rated Breaking Current | kA | 20 | 31.5 | ||||
| Rated Thermal Stability Current | 20 | 31.5 | |||||
| Rated Dynamic Stable Current | kV | 50 | 80 | ||||
| Rated Closing Current | 50 | 80 | |||||
| Thermal Stabilization Time | s | 4 | |||||
| Protection Class | IP2X | ||||||
| Busbar Level | Single bus/single bus with bypass double bus | ||||||
| Mode of Operation | Electromagnetic/spring energy storage | ||||||
| Dimensions (w × d × h) | mm | 1100 × 1200 × 2650 | |||||
| Weight | kg | less 1000 | |||||
External Dimensions
