Zw7/Zw7a-40.5 Outdoor Pole Mounted Hv AC Vacuum Circuit Breaker

• Customization: Available
• Breaking Capacity: High Voltage Circuit Breakers
• Operation: Electric Type
• Model NO.: ZW7/ZW7A-40.5
• Speed: Normal Type Circuit Breaker
• Arc-extinguishing Medium: Air
• Installation: Fixed
• Structure: ACB
• Poles Number: 3
• Type: Circuit Breaker
• Function: Conventional Circuit Breaker, Circuit-Breaker Failure Protection, Overcurrent Protection
• Certification: ISO9001-2000
• Rated Voltage: 40.5kv
• Rated Current: 630A/1250A/1600A/2000A
• Mechanical Life: 10000
• Rated Short-Time Withstand Current: 20ka/25ka/31.5ka
• Transport Package: Wooden Box
• Specification: Custmer made
• Trademark: ZGHQDL
• Origin: China
• HS Code: 8535210000
• Production Capacity: 3000/M

Product Description

ZW7/ZW7A-40.5 type outdoor HV AC vacuum circuit breaker is used to make and break load current, overload current and short-circuit

current in the power system with rated voltage 40.5kV, three-phase AC 50/60Hz. It is applicable to substations, industrial and mining

enterprises, unban and rural electric power networks, especially to the occasions with frequent operation and automatic power

distribution networks for power network control and equipment protection. It is a new type of high quality circuit breaker which adopts

domestic and foreign advanced technology. So the switch has the advantages of reasonable design, easy assembly, novel appearance,

safe and reliable operation, convenient maintenance and long mechanical life. The product conforms to the standards of IEC62271-100

& GB1984: AC high voltage circuit breaker, IEC60694 & GB/T11022: HV general technical requirement of switch and control apparatus.

No.	Item			Unit	Data
1	Rated voltage			kV	40.5
2	Rated insulation level	1min P.F withstand voltage	Dry test		95
			Wet test		80
		Lighting impulse withstand voltage(peak)			185
3	Rated current			A	630^,1250^,1600^,2000
4	Rated short-circuit breaking current			kA	20	25	31.5
5	Rated short-circuit making current (peak)				50	63	80
6	Rated operating sequence				O-0.3s-CO-180s-CO
7	Rated short-time withstand current			kA	20	25	31.5
8	Rated peak withstand current				50	63	80
9	Rated short-circuit duration			s	4
10	Rated operating voltage			V	DC/AC220
11	Breaking times of rated short-circuit breaking current			times	12
12	Complete breaking time			ms	≤80
13	Mechanical s life			times	10000
14	Average opening speed			m/s	≥1.4
15	Average speed of closing				≥0.4
16	Contact close-bouncing time			ms	≤5
17	Three-phase opening non-simultaneity				≤2
18	Opening time			ms	≤60
19	Closing time				≤90
20	DC resistance for each phase loop			µΩ	≤100
21	Phase-to-phase spacing			mm	710
22	Allowed accumulative wear thickness for moving and static contacts				3
23	Dimension (length×width×height)				2080×500×2275
24	Contact self-closing pressure			N	2500
25	Net weight			kg	800/740