40.5KV Outdoor Vacuum Circuit Breaker

Type: ZW7
Outdoor high-voltage vacuum circuit breaker(VCB) is outdoor high-voltage electrical appliance equipment with three-phase AC 50Hz and rated voltage of 40.5kV. This circuit breaker is attached to install spring operation mechanism or electromagnetism operation mechanism. It can far control electrically operated opening and closing operations, also can manually store energy, manually opening and closing ..The design conforms to the national standards of GB 1984 "AC High Voltage Circuit Breaker" and IEC standards of IEC-65 "High Voltage AC Circuit Breaker".

No.	Item			Unit	Data
1	Rated voltage			kV	40.5/35
2	Rated current			A	1600		2000
3	Rated short circuit breaking current			kA	20	25	31.5
4	Rated short circuit breaking current (peak value)				50	63	80
5	rated short time withstand current				20	25	31.5
6	Rated peak value withstand current				50	63	80
7	Rated short-circuit duration			s	4
8	Rated insulation level	Power frequency withstand voltage	Dry type	kV	95
			Wet type		80
		Impulse withstand voltage			185
9	Rated sequence of operations				O-0.3s-CO-180s-CO
10	Mechanical life			Time	10000
11	Breaking times for rated short circuit current			Time	20
12	Full breaking time(to match spring operating device)			ms	≤80