Partial discharge measurement method for vacuum interrupter of vacuum circuit breaker

摘要

The present invention using the ceramic coupler in electrical contact with the arc shield in the current cut-off mechanism of the vacuum circuit breakers would allow for a partial discharge can be easily measured according to a vacuum interrupter of the current cut-off mechanism of the discharge measuring device and method. That is, the present invention during normal operation of the current cut-off mechanism using a ceramic coupler in electrical contact with the arc shield, but measures the partial discharge is caused by the internal pressure increase of the hollow tube, hollow tube electrode portion and the arc current of the cut-off shield mechanism by the magnitude of the voltage applied between the significant increase in giving greatly increase the electrical intensity, the partial discharge measurement, and in accordance with the hollow tube can expand the detection range, the pressure rise, the hollow tube portion of the pressure rise caused by the discharge increases significantly the size intended to provide a part of a vacuum interrupter current cut-off mechanism to improve the measurement sensitivity discharge discharge measuring device and method. ;