Buy Hv Vacuum Circuit Breaker Factory – VS1 Type 24KV Indoor High Voltage Vacuum Circuit Breaker – JSM TRANSFORMER

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Buy Hv Vacuum Circuit Breaker Factory – VS1 Type 24KV Indoor High Voltage Vacuum Circuit Breaker – JSM TRANSFORMER Detail:

This model integrates operation mechanism with the circuit breaker, well arranged, looking beautiful and compact. 2.This model can be operated frequently, able to break and reclose fast many times. 3.Two types of installations (fixed or moved) meet the demands of different switchgears.(VS1)-12 is a HV indoor vacuum circuit breaker working as a protection and control unit of power grid equipment and industrial electric equipment in power system of rated voltage from 7.2KV to 12KV. It meets the requirements of GB/T1984-2014 (AC HV circuit breaker) and JB355-1996 (3.6KV-40.5KV indoor AC HV vacuum circuit breaker). It can be used in switchgears of KYN28(GZS1), XGN and GG-1A.

The operating mechanism is the trip-free stored energy type with independent opening and closing regardless of the operator’s action. The operating mechanism is widely used in all VD4-R series circuit-breakers with frontal control.
The circuit-breaker can be remote controlled when fitted with dedicated electrical accessories (gearmotor, opening and closing release).
The operating mechanism, the three poles and the current sensors (if provided) are installed on a metal frame without wheels. The construction is particularly compact, sturdy and of limited weight.
VD4-R series circuit-breakers with lateral operating mechanisms are life-long sealed pressure devices.(Standards IEC 62271-100)

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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