Orient-ZW7 Vacuum Circuit Breaker

ZW7 Vacuum Circuit Breaker is a kind of outdoor high-voltage switchgear under three-phase AC 50Hz, 36kv rated voltage and below. It can be used to switch on and off the loading, overloading and short-circuit current.

ZW7 Vacuum Circuit Breaker Description:
Type ZW7-36 outdoor high-voltage vacuum circuit breaker is a kind of outdoor high-voltage switchgear under three-phase AC 50Hz, 36kv rated voltage and below. It can be used to switch on and off the loading, overloading and short-circuit current.

ZW7 Vacuum Circuit Breaker

ZW7 Vacuum Circuit Breaker Features:
1. Storage, making and breaking by motor, It can operating by handle.
2. Breaking short-circuit current up to 25kA.
3. Mini motor spring mechanism (about 30W).
4. Installation method: adopt two type installation method.
5. Sealing performance: adopt reliable sealing technical.
6. Incoming & Outgoing method: adopt silicon bushing to make enough insulate distance.
7. Safe operating: there is an equipment to protect explosion.

W7 Vacuum Circuit Breaker Techincal data:

Item			Unit	Data
Rated voltage			KV	36
Rated current			A	1250,1600,2000
Rated short-circuit breaking current			KA	20,25,31.5
Rated insulation level	Power frequency withstand voltage	Dry	KV	95
		Wet	KV	80
	Lightning impulse withstand voltage (peak value)		KV	185
Rated operating sequence				O-0.3s-CO-180s-CO
Rated capacitor group breaking current			A	400
Rated short-circuit breaking current			Time	20
Rated peak withstand current			KA	50,63,80
Rated short - time withstand current			KA	20,25,31.5
Rated Short-circuit Continuing Time			S	4
Machinery life			Time	10000
Permissible gross wearing thickness for dynamic/static contacts			mm	3

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