Manufacturers Supply 35kV Porcelain Column SF6 Circuit Breaker LW8-40.5

Product structure of 35kV Porcelain SF6 Circuit Breaker LW8-40.5

The LW8-40.5 SF6 circuit breaker is an outdoor circuit breaker of porcelain column structure with three separate phases. It has a compressed air arc extinguishing chamber, and the three-phase gas is connected through a copper tube. The circuit breaker consists of a support porcelain bottle, a current transformer, an arc extinguishing chamber, an absorber, a transmission box, a connecting rod, a base frame and a spring operating mechanism.

The porcelain sleeve is the support and insulation component for connecting the main circuit of the circuit breaker with the power system. Since it is connected to the circuit breaker casing and belongs to the part of the pressure vessel, it has high strength and good airtightness.

Applications:

Power Transmission and Distribution: Used in power substations, transformer stations, and distribution networks.
Switching Operations: Suitable for switching rated operational currents, short-circuit currents, and emergency power disconnection.
Capacitor Bank Protection: Can be used to disconnect capacitor banks to ensure safe operations.
Ideal Replacement: Perfect for upgrading older circuit breaker systems.

Environmental Conditions for Using 35kV Porcelain SF6 Circuit Breaker LW8-40.5

1 Altitude: ≤3000m.
2 Ambient temperature: -30℃～+45℃.
3 Pollution level: Level II, Level III, Level IV.
4 Relative humidity: daily average not more than 95%, monthly average not more than 90% (25℃).
5 Wind pressure: not more than 700Pa (equivalent to 34m/s).
6 Occasions without flammable substances, BAOZHA danger, chemical corrosion and severe vibration.

Technical Parameters of 35kV Porcelain SF6 Circuit Breaker LW8-40.5

Dimensions of LW8-40.5 SF6 Circuit Breaker 33/35kV Systems

Ordering instructions
Circuit breaker model, specifications;
Rated electrical parameters (voltage, current, breaking current, etc.)
Environmental conditions (ambient temperature, altitude, environmental pollution level);
Actuator operating voltage and motor voltage;
Number, current ratio, and level combination of internal or external current transformers. Secondary load;
Name and quantity of spare parts, special tools, and equipment (need to be ordered separately).