ZW32-40.5/1250A type outdoor high voltage vacuum circuit breaker|Jingshe Electric Co., Ltd.

ZW32-40.5/1250A type outdoor high voltage vacuum circuit breaker

Product Category：Outdoor high voltage vacuum circuit breaker

Intro：ZW32-40.5/1250A type outdoor high voltage vacuum circuit breaker is the three-phase AC 50Hz, suitable for the rated voltage of 40.5kV outdoor high-voltage switchgear, which comply with the national standard GB1984 "high voltage AC circuit breakers" and professional standards JB3855 "3.6 ~ 40.5kV outdoor AC high voltage vacuum circuit breakers" and related IEC standards. It can be used for the control and protection of electrical equipment for industrial and mining enterprises, power plants and substations, and suitable for frequent operation. The circuit breaker has the ability to break off and fast break off multiple times

Product Consultation

Description
ZW32-40.5/1250A type outdoor high voltage vacuum circuit breaker is the three-phase AC 50Hz, suitable for the rated voltage of 40.5kV outdoor high-voltage switchgear, which comply with the national standard GB1984 "high voltage AC circuit breakers" and professional standards JB3855 "3.6 ~ 40.5kV outdoor AC high voltage vacuum circuit breakers" and related IEC standards. It can be used for the control and protection of electrical equipment for industrial and mining enterprises, power plants and substations, and suitable for frequent operation. The circuit breaker has the ability to break off and fast break off multiple times

Environmental conditions
- Ambient temperature: -35℃~ +45℃;
- Relative humidity: monthly average 90%, daily average 95%;
- Saturated vapor pressure: Daily average value is no more than 2.2×10-3 MPa; Average monthly value is not more than 1.8×10-3 MPa; In high humidity temperature drop, may condensation;
- Altitude: ≤2000m;
- Earthquake intensity is not more than 8;
- There is no fire, explosion, serious pollution, chemical corrosion, and violent vibration;
- Can be also customized as the exact request.

Technical Data

1	Rated voltage		kV	40.5
2	Rated current		A	1250/1600/2000/2500
3	Rated frequency		HZ	50/60
4	Rated insulation level	Lightning impulse withstand voltage	kV	185
4	Rated insulation level	1 min power-frequency withstand voltage	kV	80, 95/95
6	Rated short-circuit breaking current		kA	25/31.5
7	Rated short-circuit making current (peak value)		kA	63/80
8	Rated short-time withstand current		kA	25/31.5
9	Rated withstand current (peak value)		kA	63/80
10	Rated operating sequence			O-0.3s-CO-180s-CO
11	Rated short-circuit duration		s	4
12	Times of breaking with the rated short-circuit current		Times	30
13	Mechanical life		Times	10000
14	Mechanism control voltage		V	AC/DC220
15	1min secondary circuit power frequency withstand voltage		kV	2
16	Contact open distance		mm	16 ±1
17	Contact Over-travel		mm	4±0.5
18	Average opening speed		m/s	1.4±1.8
19	Average closing speed		m/s	0.4-0.8
20	Three phase simultaneity		ms	≤2
21	Contact closing bounce time		ms	≤5
22	Main circuit DC resistance per phases		μΩ	≤80
23	Polar distance		mm	460 ±2
24	Opening time		ms	≤50
25	Closing time		ms	≤100