vacuum interrupter for load break switch

1.vacuum interrupter 2.Non-exposed arc 3.Once Seal-Exhaust 4.Oxygen-free copper ring transition in sealing structure

low and high voltage ceramic vacuum interrupter for load break switch
Main Technical Data
Rated voltage	kv	12
Rated current	A	630
Rated frequency	Hz	50
Rated short-time power frequency withstand voltage(1min)	kv	42
Rated lighting impulse withstand voltage	kv	75
Rated short-time withstand current	kA	16/20
Rated withstand current(peak)	kA	40/50
Rated short-circuit making current	kA	40/50
Rated closed-loop breaking current	A	630
Rated active load breaking current	A	630
Rated cable charging breaking current	A	10
Rated single capacitor bank breaking currentrrent	A	400
Rated duration of short-circuit	s	4
Mechanical life	times	10000
Contact closing force due to bellows and atmosphere	N	70±40
Counterforce at rated contact stroke	N	120±50
Circuit resistance at rated contact force	μΩ	≤45
Shelf life	years	20
Contact erosion limit	mm	3
Weight of moving parts	kg	≤0.7
Mechanical Data Required For Matched Vacuum Switchgear
Rated contact stroke	mm	9±1
Average opening speed	m/s	1.0±0.2
Average closing speed	m/s	0.65±0.2
Added contact force	N	700/900±50
Contact bouncing duration at closing operation	ms	≤2
Contact bouncing bank amplitude of opening operation	ms	≤2
Three-pole simultaneity	ms	≤1
Note:Rated characteristics can be given on requirment

vacuum interrupter for load break switch