Product Details

ZW32-12 (G) series outdoor high voltage vacuum circuit breaker

ZW32-12 (G) series outdoor high voltage vacuum circuit breaker for AC 50HZ, voltage 10 ~ 12KV three-phase power system, as breaking, Closing load current use, it has overload and short circuit protection function, to meet the control and measurement requirements, also allows remote control and monitoring. For protect and control the distribution systems of substation and industrial and mining enterprises and for the frequent use places of the rural power grid.

Mainly Technical parameters

No	Item				Unit	Value
1	Rated voltage				kV	12
2	Rated insulation level	1min power frequency withstand voltage		Dry		42
				Wet		34
		Lightning impulse withstand voltage (peak)				75
3	Rated current				A	630;400;200
4	Rated short-circuit breaking current				kA	20;16;12.5
5	Rated operating sequence					O-0.3s-CO-180s-CO
6	Rated short-circuit breaking current breaking times				times	30
7	Rated short-circuit closed current (peak)				kA	50
8	Rated peak withstand current				kA	50
9	Rated short-time withstand current				kA	20
10	Rated short-circuit duration				s	4
11	Opening time (magnetic releasing)		Max operating voltage		ms	23~45
			Rated operating voltage
			Min operating voltage			23~60
12	Closing time				ms	25~45
13	Total break time				ms	≤100
14	Arcing time				ms	≤20
15	Mechanism life				times	1000
16	Storage energy motor rated input power				W	40
17	Rated operating voltage and auxiliary circuit rated voltage				V	DC220,110,24
						AC220,110,24
18	Storage energy time on rated voltage				s	≤10
19	Over-current tripper		Rated current		A	5
			Tripping current precision		%	±10