Product Name: ZW7 vacuum circuit breaker 33kv auto recloser 3 phase
Type: Circuit Breaker
Parameters:
ZW7-40.5 series outdoor high voltage vacuum circuit breaker
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Item
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Unit
|
data
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||
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Rated voltage
|
kV
|
40.5
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||
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Rated insulation level
|
1min power frequency withstand voltage
|
dry
|
kV
|
95
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wet
|
80
|
||||
Lightning impulse withstand voltage (peak)
|
185
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||||
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Rated current
|
A
|
1250,1600,2000
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||
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Rated short-circuit breaking current
|
kA
|
20,25,31.5
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||
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Rated operating sequence
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|
O-0.3s-CO-180s-CO
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||
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Rated short-circuit breaking current breaking times
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times
|
20
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||
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Rated short- circuit closed current (peak)
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kA
|
50,63,80
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||
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Rated peak withstand current
|
kA
|
50,63,80
|
||
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Rated short-time withstand current
|
kA
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20,25,31.5
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||
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Rated short-circuit duration
|
s
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4
|
||
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Average opening speed
|
ms
|
1.5±0.3
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||
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Average closing speed
|
ms
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0.6±0.3
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||
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Contact closing bounce duration
|
ms
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≤5
|
||
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Three phase closing and opening synchronism
|
ms
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≤2
|
||
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Opening time
|
ms
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≤90
|
||
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Closing time
|
ms
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≤60
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||
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Mechanism life
|
times
|
10000
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||
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Rated operating voltage and auxiliary loop rated voltage
|
V
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DC 110/220
|
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AC 110/220
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|||||
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Phase loop DC resistance (without current transformer) |
µΩ
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≤100
|
||
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Permitted accumulate wear-thickness of dynamic and static contact
|
mm
|
3
|
||
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Weight
|
kg
|
800
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36kv Outdoor Electrical Circuit Breaker ZW7-40.5: