Vacuum Circuit Breaker Parts

Vacuum circuit breakers are employed for outdoor applications ranging from 22kv to 66kv.

Vacuum circuit breaker parts.

A wide variety of parts of vacuum circuit breaker options are available to you such as 3 4 and 2. Vacuum circuit breaker has a high insulating medium for arc extinction as compared to the other circuit breaker. By embedding the vacuum interrupter in epoxy the assembly is substantially tougher and better suited to withstand impact moisture dust and other. 12 holds the contacts closed due to parts 2 5 6 11 and 14 being placed in an interference fit.

For higher voltage vacuum technology has been developed but not commercially viable. In a pure vacuum there can be no arc. But still it is a developing technology. The vacuum circuit breaker interrupts the current in a vacuum.

Even with limited rating say 60 to 100mva they are suitable for the majority of applications in rural areas. The working of vacuum circuit breakers is briefly explained below. The pressure inside the vacuum interrupter is approximately 10 4 torrent and at this pressure very few molecules are present in the interrupter. A vacuum circuit breaker is such kind of circuit breaker where the arc quenching takes place in vacuum.

The vacuum interrupter technology was first introduced in the year of 1960. Vacuum circuit breakers interrupt the arc by denying it air. When the breaker operates the moving contact separates from the fixed contact and an arc is struck between the contacts. The vacuum circuit breaker has mainly two phenomenal properties.

The trip latch 11 holds the. As time goes on the size of the vacuum interrupter has reduced from its early 1960 s size due to different technical developments in this field of engineering. The operation of opening and closing of current carrying contacts and associated arc interruption take place in a vacuum chamber in the. The contacts of a vacuum breaker are enclosed in a ceramic envelope or bottle that is evacuated to an extremely low atmospheric pressure approximately 0023 in.

The technology is suitable for mainly medium voltage application. In comparison to various other insulating. You can also choose from high voltage vacuum and moulded.