SMC insulated outdoor HV vacuum circuit breaker

Outdoor AC vacuum circuit breaker is used to make and break load current, overload current and short-circuit current in12kV,50/60Hz power system. Its applicable for substations, industry and mining, urban and rural electricity power networks, especially applicable in occasions with frequent operation and automatic power distribution network.

General:

The operating mechanism of this series of products is CT23 type spring energy storage operating mechanism, which is divided into electric and manual two kinds. Circuit breaker and isolation knife combination, called combined circuit breaker, can be used as a segmented switch, can also provide its own power supply, can be built-in PT or external PT.

Service Environment

Altitude:≤2000mm;
Ambient air temperature:-40C-+45℃;
Wind speed: 34m/s;
Earthquake intensity:8degree;
Relative humidity: monthly average 90%, daily average 95%;
Ice thickNess: 10mm;
Pollution degree: IV;
There will be have dew under the condition of high temperature low down hastily.

Key Feature

Use vacuum interrupter to extinguish arc.
The composite insulation of silicone rubber and engineering plastics is adopted to avoid the possibility of insulation accidents caused by oil deterioration in oil insulation.
Combined with the controller, it can be used as an automatic recloser or automatic sectioner.

Technical Data

Name		Unit	Data
			16kA	20kA	25kA
Rated voltage		kV	10
Max. operation voltage		kV	12
Rated current		A	630/1250
Rated short-circuit breaking current		kA	16	20	25
Rated short-circuit making current		kA	40	50	63
Rated peak withstand current		kA	40	50	63
Rated short-time withstand current		kA	16	20	25
Rated Insulate level	1min P.F withstand voltage	kV	42/48
	Lightning impulse withstand voltage(peak)	kV	75
Rated operating sequence			O-0.3s-CO-180s-CO
Mechanical life		times	10000
Rated short-circuit breaking current breaking times		times	30
Rated Operating Setup Closing Voltage		V	AC220 DC220,100
Rated Operating Setup Opening Voltage		V	AC220 DC220,100
Contact Stroke		mm	11±1
Contact Over travel (Contact Spring Constringent Length)		mm	3
Out Of Simultaneity Of Contact Closing And Opening		ms	≤2
Contact Closing Bounce Time		ms	≤2
Average opening Speed		m/s	1.0±0.2
Average Closing Speed		m/s	0.7±0.15
Opening Time	The Highest Operating Voltage	s	0.015-0.05
	The Lowest Operating Voltage	s	0.03-0.06
Contact Closing Time		s	0.025-0.05
Current by Phase Circuit Resistance		μΩ	≤120(≤200)
Contact erosion limit		mm	3