Mainly Technical Parameters
Item Units Value
Rated voltage KV 40.5
Rated insulation level 1min power frequency withstand voltage Dry 95
Wet 80
Lighting impulse withstand voltage(peak) 185
Rated current A 1250,1600,2000
Rated short-circuit breaking current KA 20,25,31.5
Rated operating sequence O-0.3s-CO-180s-CO
Rated short-circuit breaking current breaking times times 20
Rated short- circuit closed current (peak) KA 50,63,80
Rated peak withstand current
Rated short-time withstand current 20,25,31.5
Rated short-circuit duration s 4
Average opening speed ms 1.5±0.3
Average closing speed 0.6±0.3
Contact closing bounce duration ms ≤ 5
Three phase closing and opening synchronism ≤ 2
Closing time ≤ 90
Opening time ≤ 60
Mechanism life times 10000
Rated operating voltage and auxiliary loop rated voltage V DC110/220
AC110/220
Phase loop DC resistance (without current transformer) μ Ω ≤ 100
Permitted accumulate wear-thickness of dynamic and static contact mm 3
Weight kg 800
33KV Outdoor Vacuum Circuit Breaker(VCB)
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