This series of products are the indoor complete set equipments of three-phase AC 50HZ single bus system to receiver and distributor of the 35KV power grid. This product applies the hermetically sealed structure and is with the reliable five-defense interlocking device. It applies the whole insulating clapboard of SMC fire-retardant materials primary contact box. It is of good insulation capability and high safe operation capability.
The main switch applies the ZN23-35 vacuum circuit breaker or LN-35 SF6 circuit breaker, which runs safely, long working life, maintenance-free, high adaptation to the environment.
It is the ideal indoor switchgear for 35KV distribution system.
| Item | Unit | Value | ||
| Rated voltage | KV | 40.5 | ||
| Rated insulation level | 1 min power frequency withstand voltage | KV | Phase-phase Phase-earth | Isolation fracture |
| 95 | 118 | |||
| Rated lightning impulse withstand voltage | 185 | 215 | ||
| Rated short-time withstand current (4S) | KA | 20, 25, 31.5 | ||
| Specified short circuit drop-out current | KA | 20, 25, 31.5 | ||
| Rated withstand current (peak) | KA | 50, 63, 80 | ||
| Rated short circuit making current | KA | 50, 63, 80 | ||
| Rated current | A | 1250-2500 | ||
| Protection degree | IP2X | |||
| External dimension (W*D*H) | mm | 1818*2400*2925 |
China
