GIS circuit breaker (without disconnector,
without earthing) MKG-019
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.