China Three-Phase Communication Metal-Armored Shifting Switchgear New Type Withdrawable, Find details about China Switch Cabinet, Voltage Stabilizer from Three-Phase Communication Metal-Armored Shifting Switchgear New Type Withdrawable
project | Technical Parameters | ||
Rated voltage24 | 12kV | ||
Rated frequency | 50Hz | ||
Rated current for main bus | 630A~4000A | ||
Phase to phase, phase to earth | Primary isolating fracture | ||
Rated insulation level | 1 min power frequency withstand voltage (effect value) | 42kV | 42KV |
Ligntning impulse withstand voltage | 75kV | 85KV | |
Auxiliary control circuit 1 min power frequency withstand voltage | 2000V | ||
Rated short circuit breaking current | 25kA, 31.5kA,40kA | ||
Rated short circuit closing current(peak value) | 63kA, 80kA,100kA | ||
Rated short time withstand current(4s) | 25kA, 31.5kA,40kA | ||
Rated peak value withstand current | 63kA, 80kA,100kA | ||
Rated voltage of control circuit | AC110V, 220V; DC110V, 220V | ||
External dimensions(W*D*H) | 800(1000)*1500(1660)*2300 mm | ||
Protection class | When circuit breaker chamber door is closed | IP4X | |
When circuit breaker chamber door is opened | IP2X | ||