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ZW32-12/630-20 Outdoor High Voltage AC Vacuum Circuit Breaker

Negotiable

XJ (Xiamen) Intelligent Power Equipment Co., Ltd.

Located Region:

China

Address:

No.6 Xianghai Road, Xiamen Torch High-tech Zone (Xiang'an) Industrial Park

Biz Consulting:

+86 592 3671600

E-mail:

Online Contact

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The ZW32-12 series outdoor AC high voltage vacuum circuit breaker (pole-mounted switch) is a three-phase AC 50Hz outdoor high voltage switchgear, mainly used in 10kV outdoor distribution systems of rural or urban networks, for breaking and closing load current, overload current, and short-circuit current, and also for other similar places.

Service Conditions

Normal Service Conditions

Altitude: not exceeding 2000m;
Ambient air temperature: -40℃~+40℃
Ambient air may be polluted by dust, smoke, corrosive gas, steam or

salt fog;

Wind speed not exceeding 35m/s;
No frequent severe vibration places;
Pollution level: III.

Special Service Conditions

The circuit breaker can be used under normal service conditions different from the above. In this case, the user's requirements should be negotiated with the manufacturer and a consistent opinion obtained.

Main Technical Parameters of the Circuit Breaker

Name	Unit	Value
Rated Voltage	kV	12
Rated 1min Power Frequency Withstand Voltage	kV	42
Lightning Impulse Withstand Voltage	kV	75
Rated Frequency	Hz	50
Rated Current	A	630
Rated Short-circuit Breaking Current	kA	12.5	16	20
Rated Short-circuit Making Current (peak)	kA	31.5	40	50
Rated Peak Withstand Current	kA	31.5	40	50
Rated Short-time Withstand Current	kA	12.5	16	20
Rated Short-circuit Duration	S	4
Number of Rated Short-circuit Breaking Current Operations	Times	30
Rated Operating Sequence		O-0.3s-CO-180-CO
Mechanical Life	Times	10000
Overcurrent Trip Current	A	5
1min Power Frequency Withstand Voltage of Secondary Circuit	V	2000

Circuit Breaker Parameters

Name	Configuration	Unit	Value
Contact Travel	—	mm	3±0.5
Contact Gap	—	mm	9±1
Average Closing Speed	—	m/s	0.8±0.2
Average Opening Speed	—	m/s	1.4±0.2
Contact Closing Bounce Time	—	ms	≤2
Three-phase Contact Closing Asynchrony	—	ms	≤2
Three-phase Contact Opening Asynchrony	—	ms	≤2
Resistance of Main Circuit per Phase	Without Disconnecting Switch		<80
	With Disconnecting Switch		<150
Pole Center Distance	—	mm	280~340

Main Technical Parameters of CTB Spring Operating Mechanism

No.	Name	Rated Voltage	Normal Operating Range
1	Opening Coil	DC110	Reliable tripping under DC65% or AC85%-120% rated voltage; no tripping under less than 30% rated voltage
		DC220
		AC220
2	Closing Coil	DC110	Reliable tripping under DC80% or AC85%~110% rated voltage
		DC220
		AC220
3	Energy Storage Motor	Rated Voltage: DC/AC 220V
		Rated Power: 40W
4	Closing Spring Energy Storage Time	≤8s	Reliable operation under 85%-110% rated voltage

Disconnecting Switch Parameters

Name	Unit	Value
Rated Voltage	kV	12
Rated 1min Power Frequency Withstand Voltage	kV	42
Lightning Impulse Withstand Voltage	kV	75
4s Rated Short-time Withstand Current	kA	20
Manual Operating Torque	N.m	≤200
Contact Just-closed Position Offset	mm	2
Isolation Contact Gap	mm	≥200
Insulation Distance of Conductive Part to Ground	mm	≥200