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SF6 circuit breaker
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SFM Indoor SF6 Circuit Breaker
Rated Voltage:40.5kV
1.The interrupter unit consists of an SF6 arc-extinguishing chamber, contact system, and other auxiliary devices.
2.The SF6 circuit breaker uses SF6 gas as an arc-extinguishing and insulating medium to achieve excellent breaking and short-circuit current interruption performance. 3.The contact system is used to establish and break the circuit.
LW25 Outdoor Porcelain Type SF6 Circuit Breaker
1.Rated Voltage:126/145kV
2.Rated frequency:50Hz
3.Rated Normal Current:2000,3150,4000A
4. Spring: Electric motor charges closing spring; self-charges opening spring during closure.
5.Hydraulic: Disc spring energy storage (no nitrogen) with hydraulic actuation.
6.Pneumatic: Compressed-air opening / spring closing.
LW24 Dead Tank SF6 Circuit Breaker
1.Rated Voltage:40.5,72.5,126,145,252kV
2.Rated frequency:50Hz
3.Rated Normal Current:3150A,4000A
4.Self-optimized gas blast pressure matching fault current characteristics
5.Arc energy utilization minimizing operating mechanism workload
6.Modular three-chamber design with independent pole operation
7.Maintenance-optimized CT20 spring drive system
LW8-40.5 Outdoor SF6 Circuit Breaker
1.Rated Voltage:35kV
2.Highest Voltage:40.5kV
3.Rated Current:1600/2000/2500/3150A
4.Superior Breaking: Compressed-gas arc interruption ensures ultra-short arc times, high electrical endurance. Interrupts 31.5kA at rated voltage 21 times without maintenance or SF6 replacement.
5.High Reliability: Mechanical life >3,000 operations. Supports frequent use. Optional integration of up to 12 CTs per unit.
6.Advanced Monitoring: MKZ-type SF6 density gauge maintains accurate readings unaffected by temperature.
7.Compliance: Meets GB1984-89 & IEC 56 standards.
8.Operation: Equipped with CT14 spring-operating mechanism.