Armored Withdrawable AC Metal-enclosed Switchgear High and Low Voltage Switchgear
Item
|
Unit
|
Technical Data
|
||
Rated Voltage
Rated voltage |
kV
|
12
|
||
Rated insulation level
(With altitude of 3000m) |
1min frequency withstand voltage (effective) value)
|
Interphase, phase to earth
|
kV
|
42,54*
|
|
|
Isolating fracture
|
|
48,61*
|
|
Lightning impulse withstand voltage (peak value)
|
Interphase, phase to earth
|
kV
|
75,96*
|
|
|
Isolating fracture
|
|
85,109*
|
Rated frequency
|
Hz
|
50
|
||
Rated current
|
A
|
630,1250,1600,2000,2500,3150
|
||
Rated short-time withstand current
|
kA
|
31.5,40
|
||
Rated peak withstand current
|
kA
|
80,100
|
||
Rated short-circuit current duration
|
s
|
4
|
||
Protection grade
|
|
Shell : IP4X,Breaker compartment door (in open condition): IP2X
|
||
Operational continuity category
|
|
LSC2B
|
||
* Means the correction parameter values of test site with an altitude of 1000m and below.
|