Vacuum monitoring system of vacuum circuit breaker

The utility model discloses a vacuum monitoring system of vacuum circuit breaker, which comprises a vacuum circuit breaker whose inside is provided with a vacuum tube which is provided with a moving contact and a static contact, and the inner wall of the vacuum tube is coated with an oxygen absorbent coating layer which can externally reflect light. The vacuum monitoring system of vacuum circuit breaker further comprises a monitor probe which is connected with a monitoring-processing warning unit through a cable, and the position of the monitor probe is corresponding to the position of the oxygen absorbent coating layer. The vacuum monitoring system of vacuum circuit breaker uses an infrared mode to do no-contact monitor, and skillfully solves the high-pressure insulating problems of a monitoring unit and a monitored object. The property of the oxygen absorbent coating layer is stable in a vacuum chamber, which not only leads the device to be safe and reliable, but also is accurate to monitor, and solves a bi