Indoor high-voltage vacuum circuit breakerDetailed product description：

The CV1-12 (VS1) indoor high-voltage vacuum circuit breaker (hereinafter referred to as the circuit breaker) is a new generation of vacuum circuit breakers developed and researched using advanced CAD/CAM/CAE design and manufacturing technology. This circuit breaker is used for control and protection in AC 50Hz, rated voltage 12kV and below power grids, and is widely used in industrial and mining enterprises, substations and other places.

project		unit	data
Rated voltage Ur		kV	twelve
Rated insulation level	1-minute power frequency withstand voltage Ud (effective value)	kV	Fracture, phase to phase, ground to ground	forty-two
	Lightning impulse withstand voltage Up (peak)	kV	Fracture, phase to phase, ground to ground	seventy-five
Rated frequency fr		Hz	fifty
Rated current Ir		A	630, 1250, 1600, 2000, 2500, 3150, 4000
Rated short-circuit breaking current Isc (effective value)		kA	25, 31.5, 40, 50
Rated peak withstand current Ip		kA	63, 80, 100, 125
Rated short-circuit closing current		kA	63, 80, 100, 125
Rated short-time withstand current Ik (effective value)		kA	25, 31.5, 40, 50
Rated short-circuit duration tk		s	four
Rated back-to-back capacitor bank breaking current Ibb (effective value)		A	four hundred
Rated back-to-back capacitor bank closing inrush current Ibi (peak)		kA	20 (frequency 4250Hz)
Rated cable charging breaking current Ic (effective value)		A	twenty-five
Rated operating sequence		Automatic reclosing: O-0.3s-CO-180-CO
		Non automatic reclosing: O-180s-CO-180-CO
Rated power supply voltage Uop for closing and opening devices		V	AC：110, 220； DC：110, 220
Rated power supply voltage Ua of auxiliary circuit		V	AC：110, 220； DC：110, 220
Mechanical lifespan*	210mm phase to phase distance circuit breaker	time	twenty thousand
	Circuit breakers with phase spacing of 150mm and 275mm		ten thousand
Classification: Mechanical life/Electrical life/Capacitive current breaking		M2/E2/C2

CV1-12 (VS1) Indoor High Voltage Vacuum Circuit Breaker