Structure and performance
GN38-12D upper isolating switch structure design is novel, reasonable and unique. The outgoing line adopts the through-wall type, which directly forms an insulating partition in the busbar room and the circuit breaker room. Its incoming terminal is easy to be directly connected with the horizontal busbar of the parallel cabinet, which can reduce the height of the switch cabinet, reduce the transition joint and reduce the cost.
The operating mechanism drives the isolating switch shaft to rotate, and drives the operating arm to push and pull the isolating blade, so that it opens and closes with the incoming line contact, or with the grounding contact to achieve isolation or grounding.
Technical Parameters
| Model Specifications | GN38-12/630 | GN38-12/1250 | GN38-12/1600 | |
| GN38-12D/630 | GN38-12D/1250 | GN30-12D/1600 | ||
| Rated voltage (kV) | 12 | |||
| Rated current (A) | 630 | 1250 | 1600 | |
| 4s short-time withstand current (kA) | 20 | 31.5 | 80 | |
| Rated peak withstand current (kA) | 20 | 31.5 | 80 | |
| Rated insulation level | Lightning impulse voltage (kV) | Phase-to-phase, relative to ground 75, fracture 85 | ||
| 1min power frequency withstand voltage (kV) | Phase, relative to 42, fracture 48 | |||
Installation Dimensions
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