Zwha-24 Outdoor Pole Mounted Hv AC Vacuum Circuit Breaker

• Customization: Available
• Breaking Capacity: High Voltage Circuit Breakers
• Operation: Electric Type
• Model NO.: ZWHA-24
• 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: 24kv
• Rated Current: 630A/1250A
• Mechanical Life: 10000
• Rated Short-Time Withstand Current: 16/20/25ka
• Transport Package: Wooden Box
• Specification: Custmer made
• Trademark: ZGHQDL
• Origin: China
• HS Code: 8535210000
• Production Capacity: 3000/M

Product Description

ZWHA-24 series 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 24kV, 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. 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	24
2	Rated insulation level	1min P.F withstand voltage	Dry test		65/79(isolating distance)
			Wet test		50/64(isolating distance)
			Auxiliary loop and control loop		2
		Lightning impulse withstand voltage(peak)			125/145(isolating distance)
3	Rated frequency			Hz	50/60
4	Rated current			A	630,1250
5	Rated operating sequence				O-0.3s-CO-180s-CO
6	Rated short-circuit breaking current			kA	16	20	25
7	Rated short-circuit making current(peak)				40	50	63
8	Rated peak withstand current(peak)				40	50	63
9	Rated short-time withstand current				16	20	25
10	Rated short-circuit duration			s	4
11	Breaking times of rated current			times	1000
12	Breaking times of rated short-circuit breaking current				20
13	Closing time			ms	20~80
14	Opening time	At max. operating voltage			20~80
		At rated operating voltage			20~80
		At min. operating voltage			20~80
15	Complete breaking time				≤100
16	Mechanical life			times	10000
17	Closing power			J	70
18	Rated input power for energy storage motor			W	≤70
19	Rated operating voltage and rated auxiliary loop current			V	DC/AC220
20	Energy storage time under rated voltage			S	≤8
21	Over-current tripping device	Rated current		A	5
		Tripping current accuracy		%	±10
22	Average opening speed			m/s	1.5±0.2
23	Average closing speed				0.8±0.2
24	Contact close-boucing time			ms	≤3
25	Three-phase opening non-simultaneity				≤2
26	DC resistance for each phase loop(with isolator)			μΩ	≤80(150 with isolator)
27	Allowed accumulative wear thickness for moving and static contacts			mm	3
28	Phase-to-phase spacing				390±1.5
29	Contact self-closing pressure			N	2000±200
30	Net weight			kg	125(155 with isolator)