11kv Vacuum Circuit Breaker 630a Vcb in Substation

The 11kv vacuum circuit breaker 630a vcb in substation is capable to use on the power grid which the voltage level is under 12kv. It adopts vacuum interruption technology to advance an operational life and fault current breaking capability. The 11kv vacuum circuit breaker 630a vcb in substation does not contain mineral oil and sf6 gas, which courses the pollution to the water and air. Meanwhile, unlike to use mineral oil and sf6 gas, a 11kv vacuum circuit breaker 630a vcb in substation does not need to refill or replace insulation medium. Moreover, it does not need to concern the oil leakage and gas emission on a 11kv vacuum circuit breaker 630a vcb.

The 11kv vacuum circuit breaker 630a vcb widely adopts on input and output electrical panels to provide short circuit protection, overload protection for Power grid, mining, petrochemical group company, and rail transportation.

Technical Parameter

Product FAQ:

Q: What is the service life of a 11kv vacuum circuit breaker 630a vcb?

A: A 11kv vacuum circuit breaker 630a vcb typically offers a long mechanical and electrical life. Depending on the model, the mechanical endurance can reach 10,000 to 20,000 operations, while the electrical endurance under rated short circuit breaking conditions usually meets IEC standards.

Q: What kinds of protection does a 11kv vacuum circuit breaker 630a vcb provide?

A: The vacuum circuit breaker itself provides reliable interruption of fault currents. In combination with protection relays and control gears, it offers short circuit protection, overload protection, and earth fault protection, ensuring safe and stable operation of the power system.

Q: Does a 11kv vacuum circuit breaker 630a vcb require frequent maintenance?

A: No. Thanks to the use of vacuum interrupters and a simple, robust operating mechanism, maintenance requirements are minimal. Typically, only periodic inspections and functional checks are needed, which significantly reduces life cycle costs.