145kV Vacuum Breaker Mechanism

Product Features

(1) Vacuum circuit breaker using vacuum diffusion arc extinguishing, has a high current breaking capacity (also known as self-energy arc extinguishing mode), the circuit breaker is in the breaking position, if the breakdown occurs between the contacts, no matter when it has the same breaking capacity with the circuit breaker breaking. So developmental faults and multiple lightning strikes on the Vacuum circuit breaker will not pose a threat, can still break.

(2) The arc voltage of the vacuum circuit breaker is very low, and the electric wear between the contacts is very slight. As long as the contact burnout is not greater than the allowable burnout, but can meet the specified voltage requirements, the circuit breaker still has the ability to open the arc.

(3) It does not produce harmful gases, is easy to assemble and simple to maintain.

(4) The arc extinguishing chamber adopts the contact structure which has strong electromagnetic thrust to the arc, in order to drive the arc to rotate at high speed, prevent the arc from concentrating combustion, and force the arc to extinguish when the current naturally passes through zero, and the structure of the arc extinguishing chamber has the advantages of good heat dissipation, even distribution of electric field, unaffected by other factors, and small external dimensions.