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Fixed Type 24KV Modularized VCB Circuit Breaker 310mm Phase Spacing

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Address: No. 25 Street , Hanghai Road, Zhengzhou,Henan,China

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Knkong Electric Co.,Ltd

Fixed Type 24KV Modularized VCB Circuit Breaker 310mm Phase Spacing

Country/Region	china
City & Province	zhengzhou henan
Categories	Other Chargers

Product Details

310mm Phase spacing fixed type12-24KV modularized vacuum circuit breaker

Voltage: 12-24KV

Current: 630-2000A

Breaking current: 20KA

Type: Fixed

Phase spacing: 310mm

Product overview

The VS1 series vacuum circuit breaker is independently developed by Knkong-electric and adopts a modular structure, which makes the VS1 vacuum circuit breaker easy to install, maintain, test and operate. Compared with traditional VS1 circuit breakers, Knkong-electric's VS1 is more stable, safer and has a longer service life. VS1 vacuum circuit breaker can meet the application requirements in 12kV and 24kV power transmission and distribution systems.

It is widely used in electric power, energy, petrochemical, metallurgy, manufacturing, transportation, construction, environmental protection and other industries.

VS1-Series circuit breaker features high stability and high reliability

The operating mechanism of Knkong-electric's VS1 series vacuum circuit breaker is specially optimized for transmission components. The modular spring mechanism makes maintenance more convenient, the maintenance time after power failure is greatly shortened, and the parts are universal. At the same time, the vacuum interrupter has good compatibility and greatly improved performance.

Technical Parameters

No.	Item		Unit	Parameter
1	Rated voltage		KV	12
2	Rated frequency		Hz	50/60
3	Rated insulation level	1min power frequency withstand voltage(r. m. s)	KV	42(phase-to-phase, phase-to-earth) 48(across the isolating distance)
		Lighting impulse withstand voltage (peak)		75(phase-to-phase, phase-to-earth) 85(across the isolating distance)
4	Rated current		A	630	630		1250		1600
				1250	1250		1600		2000
							2000		2500
							2500		3150
									4000
5	Rated short-circuit breaking current		KA	20	25		31.5		40
6	Rated short-time withstand current			20	25		31.5		40
7	Rated short-circuit marking current			50	63		80		100
8	Rated peak withstand current			50	63		80		100
9	Rated duration of short-circuit		s	4
10	Rated operating sequence			O-0.3s-O/C-180s-O/C
11	Breaking times of rated short-circuit current		Times	30/20 times(40KA)
12	Mechanical endurance		Ops	20000
13	Rated single capacitor bank breaking current		A	630
14	Rated back-to-back capacitor bank breaking current			400
15	Double-earth fault breaking current			27.4
16	Allowable maximum contact erosion		mm	3
17	Clearance between open contacts			10±1
18	Over stroke			3.5±0.5
19	Non-simultaneity of 3-phase opening and closing		ms	≤2
20	Bounce duration of contact closing			≤2
21	Average breaking speed (instant breaking 6mm)		m/s	1.1±0.2
22	Average making speed			0.8±0.2
23	Making time		ms	≤100
24	Breaking time			≤50
25	Resistance of each phase main circuit		μ Ω	630A			≤50
				1250A			≤45
				1600A~2000A			≤35
				≥2500A			≤25
26	Contact breaking bounce amplitude		mm	≤2
27	Rated operating voltage	Rated operating voltage(V)AC/DC	V	24*		110		220
		Scope of normal operation voltage		Opening:65%-120% rated voltage, in case the voltage is lower than 30% rated voltage, opening operation is not allowed
28	Rated voltage of energy storage motor		V	AC110/220,DC110/220
29	Energy storage time		S	≤15