This series switch was designed together by Shenyang Transformer Research Institute and many Chinese switch manufacturers.The switch adopts new structure, new material, and new technology, having the advantages of reasonable structure, good hand-feeling, flexible rotation, accurate location etc.And the switch applies to the three-phase oil-immersed electrical power transformer with the frequency of 50HZ、60HZ, the rated voltage of 10KV、35KV, the rated current of 63A、125A、250A. Off-circuit tap-changers can be directly fixed on the tank cover of the transformer.

Specifications

WSP 63

Phase number

Three-phases

Connection mode

Central point (II)  Neutral point (III)

Rated through current (A)

63

Short-circuit capacity

Heat stableness current (KA/2s)

1.6

Dynamic stableness current (KA)

4

Rated frequency

50~60

Insulation level (KV)

Rated voltage (KV)

10KV

Power-frequency withstand Voltage (50Hz/1min)

42KV

Impulse (1.2/50μs)

75KV

Sealing performance (KPa/24h)

60

Machine life (Thousands of times)

2