CVR1-12 type indoor mounted high-voltage vacuum circuit breakerDetailed product description：

The CVR1-12 indoor mounted high-voltage vacuum circuit breaker is a new layout structure product developed to meet the requirements of the power supply department. Its width is only 380mm, and it is installed in 800mm wide fixed cabinets and ring main units together with isolation switches. It can be used for on-site control and protection of large equipment in industrial and mining enterprises, as well as in substation switching stations and other places.
Rated current of circuit breaker: 630A, 1250A

project		unit	data
model			CV1	CVR1
Rated voltage Ur		kV	twelve
Rated insulation level	1-minute power frequency withstand voltage Ud (effective value) Fracture, phase to phase, ground to ground	kV	forty-two
	Lightning impulse withstand voltage Up (peak) Fracture, phase to phase, ground to ground	kV	seventy-five
Rated frequency fr		Hz	fifty
Rated current Ir		A	630, 1250, 1600, 2000, 2500, 3150, 4000	630, 1250
Rated short-circuit breaking current Isc (effective value)		kA	25, 31.5, 40, 50	25, 31.5
Rated peak withstand current Ip		kA	63, 80, 100, 125	63, 80
Rated short-circuit closing current		kA	63, 80, 100, 125	63, 80
Rated short-time withstand current Ik (effective value)		kA	25, 31.5, 40, 50	25, 31.5
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 life		time	1250-31.5 and below: 20000	ten thousand
			1250-31.5 and above: 10000
Classification: Mechanical life/Electrical life/Capacitive current breaking			M2/E2/C2

CVR1-12 indoor mounted high-voltage vacuum circuit breaker