Circuit Breakers

Resistance Switching Circuit Breaker

Resistance Switching Circuit Breaker: We already know that current chopping, capacitive current breaking etc. give rise to severe voltage oscillations. These excessive voltage surges during circuit interruption can be prevented by the use of shunt resistance R connected across the circuit breaker contacts as shown in the equivalent circuit in Fig. 19.22. This is known …

Resistance Switching Circuit Breaker Read More »

Switchgear Components in Circuit Breakers

Switchgear Components in Circuit Breakers: The following are some important components common to Switchgear Components in Circuit Breakers : Bushings Circuit breaker contacts Instrument transformers Bus-bars and conductors 1. Bushings: When a high voltage conductor passes through a metal sheet or frame which is at earth potential, the necessary insulation is provided in the form of …

Switchgear Components in Circuit Breakers Read More »

Scroll to Top