A vacuum circuit breaker is a kind of circuit breaker where the arc quenching takes place in a vacuum medium. The operation of switching on and closing of current carrying contacts and interrelated arc interruption takes place in a vacuum chamber in the breaker which is called a vacuum interrupter.
What are the disadvantages of vacuum circuit breaker?
Disadvantages of Vacuum Circuit Breakers
- The main disadvantage is that it is uneconomical at voltages exceeding 38 KVolt. ...
- The one-time investment price of the product is relatively high, which is mainly determined by the professional production of the vacuum interrupter and the requirements of institutional reliability.
What is the main advantage of CB over interrupter?
Vacuum circuit breaker does not require any additional filling of oil or gas. They do not need periodic refilling. Rapid recovery of high dielectric strength on current interruptions that only a half cycle or less arcing occurs after proper contact separation.
