Zw10-12 Outdoor Pole Mounted Hv AC Vacuum Circuit Breaker

• Customization: Available
• Breaking Capacity: High Voltage Circuit Breakers
• Operation: Electric Type
• Model NO.: ZW10-12
• 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: 12kv
• Rated Current: 630A
• Mechanical Life: 10000
• Rated Short-Time Withstand Current: 20ka
• Transport Package: Wooden Box
• Specification: Custmer made
• Trademark: ZGHQDL
• Origin: China
• HS Code: 8535210000
• Production Capacity: 3000/M

Product Description

ZW10-12 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 12kV, three-phase AC 50/60Hz. It is applicable to substations, industrial and minding

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 can be also used as a sectionalizing switch after equipped

with a disconnect switch, thus the installation space and working hours can be saved more. 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	12
2	Rated current			A	630
3	Rated insulation level	1min P.F withstand voltage	Dry test	kV	42
			Wet test (to earth, external insulation)		34
		Lightning impulse withstand voltage(peak)			75
4	Rated frequency			Hz	50/60
5	Rated short-circuit breaking current			kA	20
6	Rated operating sequence				O-0.3s-CO-180s-CO
7	Breaking times of rated short-circuit breaking current			times	30
8	Rated short-circuit making current(peak)			kA	50
9	Rated peak withstand current				50
10	Rated short-time withstand current				20
11	Rated short-circuit duration			s	4
12	Rated operating voltage /rated auxiliary loop voltage			V	AC/DC 220
13	Average opening speed			m/s	1.0±0.3
14	Average closing speed				1.0±0.25
15	Contact close-bouncing time			ms	≤2
16	Three-phase opening/closing non-simultaneity				≤2
17	Closing time			ms	25~50
18	Opening time	At highest rated operating voltage			15~50
		At lowest rated operating voltage			30~16
19	DC resistance for each phase loop			μΩ	≤120(200 with isolator)
20	Phase-to-phase spacing(measure from arc chamber's end)			mm	260±2.0
21	Mechanical life			times	10000
22	Net weight			kg	135(155 with isolator)