|
Main Technical Data
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|
|
|
Rated voltage
|
kv
|
72.5
|
|
Rated current
|
A
|
2500/3150
|
|
Rated frequency
|
Hz
|
50/60
|
|
Rated short-time power frequency withstand voltage(1min) ☆
|
kv
|
140
|
|
Rated lighting impulse withstand voltage ☆
|
kv
|
375
|
|
Rated short-time withstand current
|
kA
|
31.5/40
|
|
Rated withstand current(peak)
|
kA
|
80/125
|
|
Rated short-circuit making current
|
kA
|
31.5/40
|
|
Rated closed-loop breaking current
|
A
|
630
|
|
Rated active load breaking current
|
A
|
630
|
|
Rated cable charging breaking current
|
A
|
10
|
|
Rated single capacitor bank breaking currentrrent
|
A
|
400
|
|
Rated duration of short-circuit
|
s
|
4
|
|
Mechanical life
|
times
|
10000
|
|
Contact closing force due to bellows and atmosphere
|
N
|
220±40
|
|
Counterforce at rated contact stroke
|
N
|
330±50
|
|
Circuit resistance at rated contact force
|
μΩ
|
≤20
|
|
Shelf life
|
years
|
20
|
|
Contact erosion limit
|
mm
|
3
|
|
Weight of moving parts
|
kg
|
≤4.2
|
|
Mechanical Data Required For Matched Vacuum Switchgear
|
|
|
|
Rated contact stroke
|
mm
|
38±2
|
|
Average opening speed
|
m/s
|
2.8±0.2
|
|
Average closing speed
|
m/s
|
1.6±0.2
|
|
Added contact force
|
N
|
4500±100
|
|
Contact bouncing duration at closing operation
|
ms
|
≤5
|
|
Contact bouncing bank amplitude of opening operation
|
mm
|
≤2
|
|
Three-pole simultaneity
|
ms
|
≤2
|
|
|
|
|
|
Note:Rated characteristics can be given on requirment ☆：dir air 0.5MPA
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|
|
