A vacuum circuit breaker is the type of circuit breaker in which the medium of arc quenching is the vacuum. In this post, you’ll learn the fundamentals of vacuum circuit breaker.
Contents
How Vacuum Circuit Breaker Looks
Pic Credits: Tony R. Kuphaldt Instrumentation Book
How VCB Breaker Works
The video below illustrates the working of a vacuum circuit breaker:
Advantages of Vacuum Circuit Breakers
- They are compact and reliable
- Low arc energy
- No generation of gas is associated
- Little maintenance os required
- They can break heavy fault currents