Traditional Culture Encyclopedia - Traditional festivals - What are the two faults of high and low voltage switchgear?

What are the two faults of high and low voltage switchgear?

(a) opening and closing faults

This fault is caused by the circuit breaker itself. For less oil circuit breakers, the main manifestations are short circuit of oil injection, burning loss of arc extinguishing chamber, insufficient breaking capacity, explosion when closing, etc. For vacuum circuit breaker, its characteristics are arc extinguishing chamber and wave.

Bellows leak, vacuum degree decreases, capacitor bank reignites, ceramic tube breaks, etc.

(2) Insulation failure

Insulation level is the relationship between correctly handling various voltages (including operating voltage and overvoltage), various voltage limiting measures and insulation strength. Xiangtai Electric-High and Low Voltage Switchgear

Strive to make products safe and economical, and obtain the best economic benefits. Insulation faults mainly include external insulation flashover breakdown to ground, internal insulation flashover breakdown to ground, interphase insulation flashover breakdown, lightning overvoltage flashover breakdown, insulator bushing, capacitor bushing flashover, pollution flashover, breakdown, explosion, lifting rod flashover, CT flashover, breakdown, explosion and insulator fracture.