GIS circuit breaker (with disconnector, without earthing) MKG-020
Technical parameter
NO
Item
Unit
Technical data
1
Rated frequency
Hz
50
2
Rated current
A
630
3
Rated short time
withstand current
KA
20/25
4
Rated peak
withstand current
KA
63
5
Rated duration of
short circuit
s
2
6
Rated short
circuit making current
KA
63
7
Theoretic
operation
times
5000
Matters need attention during operating
environment
1.altitude not over 2000m, earthquake
magnitude not over 8 degree
2.air temperature lower than +40℃, but not
lower than -30℃. Relative temperature daily average not over 95%,
month average
not over 90%.
3.the installation site with frequent
serious vibration, water vapour, gas, chemical corrosive deposit, salt mist,
dust, fire and explosion hazard,which evidently affect mechanism’s
performance, is not applicable.
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