JCZ8C-7.2/12 series high voltage vacuum contactor-Chennuo Electric

JCZ8C-6kv(7.2kv)/10kv(12kv) Series Medium Voltage Vacuum Contactor

This series of medium-voltage vacuum contactors uses specialized vacuum intterupters for switching capacitor banks. They undergo a high-current aging process and are securely assembled with insulation supports and metal frames into a solid unit, which is safe and reliable. This series of high-voltage vacuum contactors have large stroke, strong breaking ability, small bounce of closing and opening brake, stable coil working performance, and good triphase synchronization, especially suitable for switching the load of switching capacitor banks. There are electromagnetic holding type and permanent magnet mechanism type, and they can be used as a switching switch in the compensation device of capacitor banks with large capacitance less than 3000kvar.

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Feature

The metal frame is firmly integrated into one unit, which is safe and reliable.

The mechanism has a large stroke, strong breaking ability, and small bounce of closing and opening.

The coil has stable working performance, and good triphase synchronization.

Parameter

Tech. parameters	Unit	160、250/12(7.2)	400/12(7.2)	630/12(7.2)	800/12(7.2)	1250/12(7.2)
Rated voltage of the main circuit	(KV)	12(7.2)	12(7.2)	12(7.2)	12(7.2)	12(7.2)
Rated current of the main circuit	(A)	160	400	630	800	1000、1250
Main circuit making capacity	(A/100times)	2500	4000	6300	8000	10000
Main circuit switching capability	(A/25times)	2000	3200	5000	6000	8000
Ultimate breaking capacity	(A/3times)	4000	4500	6300	8000	10000
Mechanical life	(10,000 times)	100	100	100	100	100
Mechanical lock life	(10,000 times)	10	10	10	10	10
Electrical endurance AC3	(10,000 times)	25	25	25	25	25
Permanent magnet mechanism lifespan	(10,000 times)	20	20	20	20	20
Power frequency withstand voltage of main circuit (fracture)	(KV)	42(32)	42(32)	42(32)	42(32)	42(32)
Phase-phase/phase-to-ground power frequency withstand voltage	(KV)	42(32)	42(32)	42(32)	42(32)	42(32)
Lightning impulse withstand voltage level	(KV)	75(60)	75(60)	75(60)	75(60)	75(60)
Rated operating frequency	(times/h)	150	150	150	150	150
Operating Frequency of Permanent magnet mechanism	(times/h)	30	30	30	30	30
Terminal pressure	(N)	>100	>100	>100	>100	>100
Contact opening distance	(mm)	6(5)±0.5	6(5)±0.5	6(5)±0.5	6(5)±0.5	6(5)±0.5
Overtravel	(mm)	1.5±0.5	1.5±0.5	1.5±0.5	1.5±0.5	1.5±0.5
Main loop resistance	(μΩ)	≤200	≤200	≤200	≤150	≤150