Huayi Electric Apparatus Group Co., Ltd.

Circuit Breaker

	Outdoor SF6 Circuit Breaker

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Model Number

LW36A-126/T3150-40

LW36A-126 Outdoor AC SF6 circuit breaker is a control and protection device to the 50Hz AC and 110kV power system. It can be used as the connector circuit breaker in the circuit. It gained the new product commendatory certificate in 2001 by the national economic and trade committee.

Technical Specification/Parameter

Altitude: 1000（2500）m

Ambient temperature: -40～+40°C

Rated voltage: 126kV

Rated current: 3150A

Rated frequency: 50 Hz

Rated short circuit breaking current: 40 kA

Rated short circuit closing current: 100 kA

Rated short time withstand current: 40A

Rated withstand current(peak): 100 kA

Rated short time P.F.withstand voltage: earth/gap 230/275

Rated lighting impulse withstand voltage: earth/gap 550/650

Rated short circuit current continous time: 4s

Rated step-lost breaking current: 10A

Nearby area fault breaking current: 90% 75%

Rated line charging closing current: 31.5 A

Rated operating sequence: O-0.3s-CO-180s-CO

SF6 air pressure (20°Cmeter pressure): 0.6MPa

Control loop voltage: DC110 or 220 V

Mechanical lifetime: 6000 Times