China OEM Vacuum Circuit Breaker Quotes – VS1 13.2kV 15kV 630A 3phase Vacuum Circuit Breaker – JSM TRANSFORMER

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China OEM Vacuum Circuit Breaker Quotes – VS1 13.2kV 15kV 630A 3phase Vacuum Circuit Breaker – JSM TRANSFORMER Detail:

 

The China VD4 series vacuum circuit-breakers are devices for indoor switchgear installation. Please contact ROCKWILL for special installation requirements. VD4-R series medium voltage vacuum circuit breakers with lateral operating mechanism for indoor installation feature the separate pole construction technique. Each pole houses a vacuum interrupter which is encased in the resin when the cylinder is moulded thanks to a special manufacturing process. This construction method protects the vacuum interrupter from shock, pollution and condensation.

VCB VS1 12kV 630A Indoor High-voltage Vacuum Circuit Breaker:

Interphase distance:210mm

Handcart type

Double spring operating mechanism

Applicable place: (particularly to the places needing frequent operation)

1.the electrical equipment control and protection in industrial.

2.mining enterprises.

3.power plants.

4.substations.

It can be fixed in a switch cabinet or installed on a handcart.

Stable performance and easy installation.

 

Vacuum Circuit Breaker Advantages

1.Simple structure.

2.Adapt ultra low resistance type vacuum interrupter.
3.Adapt optimization and modular spring operating mechanism.
4.Suitable for occasions with frequent operation.
5.Free maintenance and long service life.

6.High reliable performance.

 

Environmental Conditions 

Ambient temperature: - 40°C~+40°C (below 35°C within 24 hours)
Relative humidity: ≤95% (daily average) or ≤90% (monthly average)
Altitude:  ≤ 1000m

Vacuum circuit-breaker		**4/R 12			**4/R 17			**4/R 24
Standards		*			*			*
Rated voltage	Ur(kV)	12			17.5			24
Rated insulation voltage	Us(kV)	12			17.5			24
Withstand voltage at 50Hz	Ud(kV)	28			38			50
Impulse withstand voltage	Up(kV)	75			95			125
Rated frequency	fr(Hz)	50-60			50-60			50-60
Rated thermal current	Ir(A)	630	800	1250	630	800	1250	630	800	1250
Rated duty breaking capacity (symmetrical rated short-circuit current)	Isc(kA)	12.5	/	/	12.5	/	/	12.5	/	/
		16	16	16	16	16	16	16	16	16
		20	20	20	20	20	20	20	20	20
		25	25	25	25	25	25	/	/	/
Short-time withstand current(3s)	Ik(kA)	12.5	/	/	12.5	/	/	12.5	/	/
		16	16	16	16	16	16	16	16	16
		20	20	20	20	20	20	20	20	20
		25	25	25	25	25	25	/	/	/
Making capacity	Ip(kA)	31.5	/	/	31.5	/	/	31.5	/	/
		40	40	40	40	40	40	40	40	40
		50	50	50	50	50	50	50	50	50
		63	63	63	63	63	63
Making capacity		*			*			*
Opening time	ms	40…60			40…60			40…60
Arcing time	ms	10…15			10…15			10…15
Total break-time	ms	50…75			50…75			50…75
Closing time	ms	30…60			30…60			30…60
Code	Available versions
Closing pushbutton	**4circuit-breakers with lateral operating mechanism are available in the following versions:
Open/closed indicator
Discharged	Center-distance P=()mm						Fixed		Removable
Operation counter							210		210
Manually charging handle							230		230
Opening pushbutton							250		250
Protection relay							275		275
Delivery terminal box							300		300
Current transformer							310		310
Polo

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