Handcart Type Vacuum Circuit Breaker

The SanGao High Quality Handcart Type Vacuum Circuit Breaker is suitable for use in three phase AC 50HZ, 40.5kV systems, and can be used for load current, overload current, and fault current in industrial and mining enterprises, power plants, and substations. It is also suitable for frequent operation scenarios. This circuit breaker adopts an upper and lower layout structure, effectively reducing the depth of the circuit breaker.

Characteristic

The manufacturing of Handcart Type Vacuum Circuit Breaker complies with China's national standards GB1984-2003 "AC High Voltage Circuit Breakers", DL/T403-2000 "Technical Conditions for Ordering 3.6-40.5kV Indoor Vacuum Circuit Breakers" and relevant positive EC standards, and has reliable interlocking function. The operating mechanism of the circuit breaker is a spring energy storage type, which can be operated by AC or DC energy storage or manually operated.

The circuit breaker can also be equipped with a long-life permanent magnet operating mechanism, with a mechanical lifespan of up to 20000 times, and can be used in extremely frequent operating situations.

The circuit breaker is designed in a front and rear split structure, which can be used as a fixed installation unit or as a mid mounted unit with the chassis.

Adopting a composite insulation structure, the three phase arc extinguishing chamber and the associated charged body are isolated by three independent epoxy resin insulation enclosures. After adopting the composite insulation structure, the circuit breaker meets the requirements of air distance and creepage distance under normal operating conditions, and effectively reduces the volume of the circuit breaker. The main electrical circuit vacuum arc extinguishing chamber and the dynamic and static conductive connection are installed inside the insulation structure, making the phase to phase distance only 300mm.

All electrical connections in the main circuit are fixed and have high reliability

Usage environment:

Altitude: below 3000m;

Environmental temperature: maximum+40 ℃, minimum -15 ℃;

Relative humidity: daily average not exceeding 95%, monthly average not exceeding 90%

Seismic intensity: below level 8;

Places without fire, explosion, corrosive gases, and severe vibrations,