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. |