Simple Vacuum Circuit Breaker Diagram. It consists of fixed contact moving contact and arc shield mounted inside a vacuum chamber vacuum interrupter. For higher voltage vacuum technology has been developed but not commercially viable.
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Typical parts of the vacuum circuit breaker are shown in the figure. The moving contact is connected to the control mechanism by stainless steel bellow. The pressure inside the vacuum interrupter is approximately 10 4 torrent and at this pressure very few molecules are present in the interrupter.
Control circuit figure 6 shows a typical schematic diagram for the control circuit of the type vr circuit breaker.
For higher voltage vacuum technology has been developed but not commercially viable. The technology is suitable for mainly medium voltage application. The moving contact is connected to the control mechanism by stainless steel bellow. Vacuum circuit breaker construction.
