LW3-10 Outdoor High Voltage SF6 Circuit Breaker

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Do Better Performances in Demanding Duties
Yueqing Aiso gain client trust thanks to their proven reputation for reliability, performance and long life. 12kV 630A Fixed Type High Voltage Indoor Vacuum Circuit Breaker from Yueqing Aiso are available for original equipment manufacturers (OEM) to incorporate in their own installations or for use in repair, retrofit and upgrade projects.

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LW3-10 Outdoor High Voltage SF6 Circuit Breaker

SF6 gas is excellent insulating and arc-extinguishing medium, and it has best performance. Such equipment are the developing direction worldwide.

LW3-10 I II III type outdoor SF6 circuit breakers adopt SF6 gas as rec-extinguishing and insulating medium, which is applied to self-rotated arc extinguishing theory Operating mechanism is divided into I type hand charging spring operaring mechanism, II type motor charging spring operating mechanism and III type DC electromagnetic operating mechanism. All mechanism can cooperate with breaker body very well.

Main Technical Parameters

Item	Description		Unit	Data
							1	Ratedvoltage	KV	10
2	Max.voltage		KV	11.5
3	Ratedinsulationlevel(0.25Mpa,20℃)	lightningimpactwithstandvoltage	kv	75
		1minpowerfrequencywithstandvoltage		42
		Rainingwithstandvoltage		34
		Anti-phaceimpactwithstandvoltage		85
4	Insulationlevel(0Mpa.20℃)	1minpowerfrequencywithstandvoltage	KV	30
		1minanb-phasewithstandvoltage		30
		5minmaximumplasevoltage		9
5	Ratedcurrent		A	400630
6	Ratedbreakcurrentonshorting		KA	6.3812.5
7	Differentphasetogroundreclosingbreakingcurrent		KA	5.57.110.9
8	Breakingcurrenton0Mpa		A	400630
9	Ratedinsulationlevel	Itype		OC-180S-CO-180S-CO
		II,IIItype		OC-0.3S-CO-180S-CO
10	Ratedmakingcurrent(peak)		KA	16	20	31.5
11	Rateddynamiccurrent(peak)		KA	16	20	31.5
12	Ratedthermalstabilitycurrent		KA	6.3	8	12.5
13	Ratedthermalstabilitytime		S	4
14	Speedatinstantofcontactstouching		M/S	2.6±0.2
15	Speedatseparatingofcontactstouching		M/S	2.6±0.2
16	Inherentclosingtime	II,IIItype	S	≤0.06
17	Inherentclosingtime	Itype	S	≤0.06
		II,IIItype		≤0.04
18	Ratedworkingpressure		Mpa	0.35(20℃)
19	Minworkingpressure		Mpa	0.25(20℃)
20	Rateofleakinginayear		%	＜1
21	Mechanicalenduranceoperation(continuous)		Times	6000
22	Weight	Itype	Kg	122
		IItype		130
		IIItype		132
23	ThewatercontentofSF6		PPM	≤150