40.5kv Outdoor High Voltage Vacuum Circuit Breaker (ZW7) with Spring Operating Mechanism

Product Description

Company Profile Zhejiang Maiyu Electric Co. , Ltd. is a professional manufacturer, high voltage vacuum circuit breaker series, indoor high voltage vacuum circuit breaker series, load switch series, lightning arrester series, high voltage disconnector series, drop fuse series, grounding switch series, cable box series and other electrical equipment companies, the company is composed of a group of people engaged in electrical industry for many years, with professional technical research and development and product sales team, perfect production equipment, integrity management, strict quality control. Product Description
ZW7-40.5 type outdoor high voltage vacuum circuit breaker is the three-phase AC 50Hz outdoor high voltage electrical equipment, suit for control and protection of 20-40.5kV transmission and distribution system; can also be used for sectional circuit breaker and switching capacitor bank occasions; this product can be matched with piecewise controller, reclose device can realize the power system intelligent segmentation, reclose control. And can add the current transformer for measurement and protection. Circuit breaker equipped with spring or electromagnetic actuator, reliable mechanical performance, frequent operation; no fire and explosion danger; circuit breaker conforms to the national standard GB19841989 "AC high voltage circuit breaker" and the International Electrotechnical Commission Standard IEC56, IEC62271-100 "high voltage AC circuit breaker" requirements. Product Parameters

serial number	project			unit	parameter
1	Rated voltage			KV	40.5
2	Rated insulation level	1min power frequency withstand voltage	Dry test	KV	95
			Wet test	KV	80
		Lightning impulse withstand voltage (peak)		KV	185
3	Current rating			A	1250,1600,2000
4	Rated short-circuit interrupting current			KA	20,25,31.5
5	Rated sequence of operations				min-0.3s-combine-180s-combine
6	Rated number of short-circuit current interruptions			times	12
7	Rated short-circuit closing current (peak)			KA	50,63,80
8	Rated peak withstand current			KA
9	Rated short-time withstand current			KA	20,25,31.5
10	Rated short-circuit duration			S	4
11	Contact opening distance			mm	22±2
12	Contact overtravel			mm	4±1
13	Average opening speed			m/s	1.5±0.2
14	Average closing speed			m/s	0.7±0.2
15	Contact closing bounce time			mS	≤2
16	Three-phase (split) gate synchronous time difference			mS	≤2
17	Closing time			ms	≤150
1Q	Opening time			mS	≤60
19	Mechanical life			times	10000
20	Rated operating voltage, auxiliary circuit rated voltage			V	DC110/220,AC110/220
21	Current resistance per phase loop (without transformer)			μΩ	≤100
22	weight			kg	700

Installation Instructions