7 December 2020

Application of vacuum circuit breaker

 Application of  vacuum circuit breaker (VCB):

  • The vacuum circuit breaker is very useful as very high-speed making switches in many industrial applications.
  • When the voltage is high and the current to be interrupted is low these breakers have definite superiority over the other breakers.
  • For low fault interrupting capacities, this circuit breaker cost is low in comparison to other interrupting devices.
  • because of the least requirement of maintenance, these breakers are very suitable for the system which require voltage from 11 to 33 kV.
  • The vacuum switches can be employed for capacitor switching for materials which is a very difficult task for oil circuit breakers.
  • These can be used along with static overcurrent relay and give an overall clearance time of less than 40ms on phase to phase faults.
  • These are many applications where a simple load reak switch is not enough ad at the same time the devices employed should not be costly. These applications give fast RRRV ad vacuum circuit breakers are the best solutions.
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