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Product introduction:

In the 12kV pole mounted magnetic controlled circuit breaker, we encapsulate the vacuum interrupter, main circuit live parts, high-accuracy voltage and current sensors, and high voltage pickup capacitors inside the cycloaliphatic-epoxy poles, based on decades of experience in solid insulation technology, eliminating all the partial discharge problems. The poles can pick up the voltage or current signals from power source side and secondary side at the same time, also the capacitor can power supply the intelligent electronic device (IED).

The three phases of the magnetic circuit breaker are driven by independent magnetic controlled mechanism respectively, which reduces dispersion, responding more timely and breaking more accurately. The breaking time is shorter than 10ms, which meets the demand of grade difference protection. The magnetic controlled circuit breaker is equipped with electrical latching and manual open handle, which latch electrically and manually the closing when the breaking handle is placed in the open position.

Note: Technical datas and sketches are only for your reference. Such details in our contact prevail.

Model annotation:

Technical parameter:

NO	Item		Unit	ZNJWV1-12/Y630-20
1	Interrupting medium		-	Vacuum
2	Insulation medium		-	Solid insulation
3	Rated voltage		kV	12
4	Rated frequency		Hz	50
5	Rated current		A	630
6	Rated short-time withstand current		kA	25
7	Rated short circuit breaking current		kA	25
8	Rated peak withstand current		kA	63
9	Duration of rated short circuit		s	4
10	Interrupting times of short circuit current		times	≥30
11	Rated operation sequence		-	O-0.3s-CO-180s-CO
12	Rated lightning impulse withstand voltage(1.2/50μs，peak)	between phases, phase to earth	kV	75
12	Rated lightning impulse withstand voltage(1.2/50μs，peak)	between interrupters	kV	85
13	Rated power frequency short-time withstand voltage (1min）	between phases, phase to earth	kV	42
13	Rated power frequency short-time withstand voltage (1min）	between interrupters	kV	48
14	Partial discharge of the whole breaker(CS, VS and pickup capacitor are included)	Testing voltage	kV	14.4
14		Partial discharge	pC	≤20
15	Main resistance		μΩ	≤80
16	Mechanical operation lifetime		operation	≥20000
17	Actuator type		-	Magnetic
18	Operation type		-	Motor,with manually opening and closing
19	Operation voltage		V	DC220
20	Closing time		ms	≤60
21	Opening time		ms	≤15
22	Synchronism in closing and opening		ms	≤2
23	Current sensors inside the pole	Rated current ratio	phase sequence	600A/1V
		Rated current ratio	Zero sequence	20A/0.2V
		Accurancy	phase sequence	metering 0.5s，Protection 5P10
		Accurancy	Zero sequence	class 1，Protection 10P10
		Temperature range	℃	-40℃～70℃
		Implementation	-	low power electro-magnetic
24	Voltage sensors inside the pole	Rated voltage ratio	phase sequence	（10kV/√3）/（3.25V/√3）
		Rated voltage ratio	Zero sequence	（10kV/√3）/（6.5V/3）
		Accurancy	phase sequence	class 0.5
		Accurancy	Zero sequence	class 1
		Temperature range	℃	-40℃～70℃
		Implementation	-	capacitor divider
		Sampling type	-	power side and load side voltage pickcup
25	Capacitors inside the pole	power supply	-	built-in capacitor power supply
		Installation	-	capacitor power supply integrated in the pole
		Single-phase rated output power	W	≥10±10%
26	Remote/Local lockout		-	optional
27	Re-close function		-	N/M
28	Manually close lockout		-	N/M
29	Closure protection level		-	not lower than IP67
30	Circuit breaker liftime		Year	20

Appearance size:

Installation indication:

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