Transmission and Distribution Series

Off-circuit Three Phases Linear Tap Changer It’s used in mineral oil or silicon oil. Its rated voltage is within the range from 10KV to 35KV, and its rated current is within the range from 63A to 300A.  Its tapping position is from 3 to 9. ……

Off-circuit Three Phases Linear Tap Changer

It’s used in mineral oil or silicon oil. Its rated voltage is within the range from 10KV to 35KV, and its rated current is within the range from 63A to 300A.  Its tapping position is from 3 to 9.

Specifications

WST30

Phase number

Three-phases

Connection mode

Central point (II)  Neutral point (III)  Terminal Point(I)

Rated through current (A)

30

Short-circuit capacity

Heat stableness current (KA/2s)

0.7

Dynamic stableness current (KA)

1.8

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

 

Off-circuit Round Tap Changer

It’s used in mineral oil or silicon oil. Its rated voltage is within the range from 10KV to 35KV, and its rated current is within the range from 63A to 250A.  Its tapping position is from 3 to 7. This series of switch was designed together with 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 and etc.. And the switch applies to the three-phase oil-immersed electrical power transformer with the frequency of 50HZ and 60HZ, the rated voltage of 10KV and 35KV, the rated current of 63A, 125A and 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

 

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