Outdoor Substation 3 Pole 66kv Sf6 Gas Circuit Breaker with Spring Mechanism

• Breaking Capacity: High Voltage Circuit Breakers
• Operation: Manual Type
• Speed: High-Speed Circuit Breaker
• Arc-extinguishing Medium: SF6
• Installation: Fixed
• Type: Circuit Breaker
• Model NO.: LW36-66
• Function: Circuit-Breaker Failure Protection
• Certification: VDE, ISO9001-2000, CE
• Brand Name: L&R or as Per Clients′ Requirements
• Size: Any Size Can Be Ordered
• OEM&ODM: Accept
• Transport Package: Export Standard Package or as Client Requirement
• Specification: ISO9001: 2008
• Trademark: L&R or according to customer′s requirement
• Origin: Wenzhou, Zhejiang
• Production Capacity: 20, 000PCS/Month

Product Description

Overview:
L&R developed LW-40.5/72.5/126/145 series of outdoor SF6 gas circuit breaker using modern processing technology and comper-aided design techniques, combined with the latest generation of spring bodies and the advantages of a permanent institution,.Its pursuit of high reliability, easy to maintain design concepts to create a generation of L&R all series switches meet the following criteria.
ANSI/IEEE G37.60/IEC 62271-100( GB1984-2003 China standard)
GBT11022-11
IEC 60255-21-1 Class I
IEC 60255-21-2 Class I
IEC 60255-21-3 Class I
IEC 60255-22-1 Class III
IEC 60255-22-2 Class IV
IEC 60255-22-3 Class III
IEC 60255-22-4 Class IV

Main features
1, molecule sieva 2. porcelain insul. ator
3, nozzle 4 pressure cylinder
5, valve disc 6. piston
7, moving contact pedestal 8. pull rod
9, moving contact finger 10. main contact
10, moving arc contact 12. fixed arc contact
13, fixed contact finger
14, fixed contact pedestal
 

Name		Unit	parameter
reted voltage		kv	40.5	72.5	126	145
rated frequency		Hz	50/60
rated current		A	1250,......4000
1min power frequency withstand voltage		KV	95/118	140	230	265
lightning impulse withstand voltage		KV	215	325	550	650
5min power frequency voltage at zero gas pressure		KV	40.5	55	95	109
rated short circuit breaking current		KV	63,.80	80,..100	80,..100	80,..100
rated short breaking current		KV	21,...31.5	31.5,...40	31.5,...40	31.5,...40
rated out-of-phase breaking current		KV	8/10	10	10	10
rated cable(line) charging breaking current		A	31.5	10	31.5	50
rated gas pressure		Mpa	0.4/0.15	0.4	0.5	0.5
main loop resistance		μΩ	≤80	≤40	≤45	≤45
operation sequence			O-0.3s-CO-180s-CO
SF6 gas leakage rate (per year)		%	≤1
moisture content(v/v)		ppm	≤150
creepage distance	across the open contacts	mm	1256	2300	3950	≥3950
	to earth		1256	2300	3950	≥3950
mechanical life		times	10,000