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Product introduction:

In the 24kV pole mounted load break switch, we encapsulate the vacuum interrupter, main circuit live parts, high-accuracy voltage and current sensors, and high voltage pickup capacitors inside the three cycloaliphatic-epoxy poles, based on decades of experience in solid insulation technology. The switch has 6 voltage sensors to pick up power source side and load side voltage, 3 current sensors to pick up three-phase current.

The three phases of the pole mounted load break switch are driven by independent magnetic mechanism respectively, which reduces dispersion, responding more timely and breaking more accurately. The LBS is equipped with electrical latching and manual open and close handle, which latch electrically and manually the closing when the breaking handle is placed in the open position. A mechanical counter is installed at the bottom of the switch for counting the number of switch operations.

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

Model annotation:

NO	Item		Unit	ZWF-24/630-16B
1	Interrupting medium		-	Vacuum
2	Insulation medium		-	Solid insulation
3	Rated voltage		kV	24
4	Rated frequency		Hz	50
5	Rated current		A	630
6	Rated short-time withstand current		kA	16
7	Rated peak withstand current		kA	40
8	Duration of rated short circuit		s	1
9	Rated lightning impulse withstand voltage(1.2/50μs，peak)	between phases, phase to earth	kV	125
9	Rated lightning impulse withstand voltage(1.2/50μs，peak)	between interrupters	kV	145
10	Rated power frequency short-time withstand voltage (1min）	between phases, phase to earth	kV	50
10	Rated power frequency short-time withstand voltage (1min）	between interrupters	kV	60
11	Partial discharge of the whole breaker(CS, VS and pickup capacitor are included)	Testing voltage	kV	17.2
11		Partial discharge	pC	≤20
12	Main resistance		μΩ	≤150
13	Mechanical operation lifetime		Operations	≥5000
14	Actuator type		-	Spring actuator
15	Operation type		-	Motor,with manually opening and closing
16	Operation voltage		V	DC24
17	Closing time		ms	≤1000
18	Opening time		ms	≤1000
19	Current sensors inside the pole	Rated current ratio	phase sequence	1000A/1A
		Accurancy	phase sequence	0.5級(jí)
		Temperature range	℃	-40℃～70℃
		Implementation	-	electro-magnetic
20	Voltage sensors inside the pole	Rated current ratio	phase sequence	（15kV/√3）/（3.25V/√3）
		Accurancy	phase sequence	1級(jí)
		Temperature range	℃	-40℃～70℃
		Implementation	-	capacitor divider
		Sampling type	-	power side and load side voltage pickcup
21	Opening lockout		-	Included
22	Closure protection level		-	not lower than IP67
23	Circuit breaker liftime		Year	20

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