Outdoor High Voltage Vacuum Circuit Breaker

• Customization: Available
• Breaking Capacity: High Voltage Circuit Breakers
• Operation: Manual Type
• Model NO.: ZW32-12
• Speed: Normal Type Circuit Breaker
• Arc-extinguishing Medium: Vacuum
• Installation: Fixed
• Structure: ACB
• Poles Number: 3
• Type: Circuit Breaker
• Function: Conventional Circuit Breaker, Circuit-Breaker Failure Protection
• Certification: ISO9001-2000
• Transport Package: Wooden Craft
• Origin: China

Product Description

ZW31-12/630-Outdoor  AC High Voltage vacuum circuit breaker  for rated voltage of 12kV,Three-phase AC 50HZ outdoor distribution equipment.Mainly used for opening,closing and electronic system load current,overload current and short circuit current.For susbtation and industrial and mining enterprises in the power distribution system for protection and control using.Rural power grid the place of frequent operation.Also can be used as power disconnect switch,after adding controller,can realized the automation of power distribution network.


 

Name		Unit	ZW32-12(G)/T400-12.5	ZW32-12(G)/T630-16	ZW32-12(G)/T630-20
Rated voltage		kV	12
Rated current		A	400	630	630
Rated short-circuit breaking current		kA	12.5	16	20
Rated short-to-medium current (peak)			31.5	40	50
Rated peak withstand current			31.5	40	50
Rated short-time withstand current			12.5	16	20
Rated short circuit duration		S	4
Rated insulation level	Lightning impulse withstand voltage (peak)	kV	Interphase, to ground 75, fracture 85
	1min power frequency withstand voltage		Interphase, to ground 42, fracture 48
Rated operation sequence			Separate -0.3s - combined -180s - combined (motorized mechanism)
Rated short circuit current breaking times		times	30
Mechanical life			10000
Rated operating voltage (divided coil)		v	DC220,100, AC220
Dynamic static head allows wear cumulative thickness		mm	3
Overcurrent release rated current		A	5
Current transformer current ratio			200/5     400/5     600/5
Contact opening distance		mm	9±1
Contact overtravel			2±0.5
Average opening speed		m/s	1.2±0.3
Average closing speed			0.6±0.2
Opening time		ms	30-60
Closing time			20-40
Closing bounce time			≤20
Three-phase switching			≤2
DC resistance per phase loop		μΩ	≤80
Energy storage motor	Rated voltage	V	-220
	rated power	W	200
	Energy storage time	S	≤8
Isolation switch	Loop resistance (circuit breaker terminal to isolation switch inlet board)	μΩ	≤120
	Center yaw amount when three-phase knife shutter is closed	mm	≤2
	Three-phase knife gate division and closing synchronization deviation		≤2
	Conductive part to ground insulation distance		≥160
	Fracture opening		≥200
Weight		kg	80