Main Technical Parameters Table of GTZNV-40.5D/630-31.5 Indoor High-Voltage AC Combined Vacuum Circuit Breaker
ZW32-15.5：
Rated voltage (KV): 40.5
Frequency (Hz): 50
1min power frequency withstand voltage between phases, to ground/isolating fracture (kV): 95/118
Lightning impulse withstand voltage, phase-to-phase, to ground/isolating fracture (kV): 185/215
Control circuit power frequency withstand voltage for 1 minute (kV): 2
Rated current of circuit breaker (A): 630-1250
Rated short-circuit breaking current of circuit breaker (kA): 20-31.5
Rated short-time withstand current of circuit breaker / (kA): 20-31.5/4
Rated peak withstand current of circuit breaker (kA): 50-80
Rated operation sequence of circuit breaker: 0-0.3S-C0-180S-CO
Mechanical life vacuum load switch (times): 10,000
Mechanical life of vacuum circuit breaker (times): 10,000
Mechanical life isolating switch (times): 3000
Mechanical life grounding switch (times): 30 00
Operating voltage (v) of spring operating mechanism: AC, DC, 220, 110
Mechanical characteristics of circuit breakers
Contact opening distance (mm): 18±2
Overtravel (mm): 6±2
Closing time (ms): 20-70
Contact closing bounce time (ms): ≤5
Asynchrony between contact closing and opening (ms): ≤2
Average closing speed (last 12mm) (m/s): 0.6-1.2
Opening time (ms): 20-50
Average opening speed (for the first 12mm) (m/s): 1.2-1.8
Opening contact rebound amplitude (mm): ≤3
Zhejiang public network security 33038202002692No.