Trip device for a rotating machine

摘要

A trip device to prevent continued operation of a rotating machine upon the occurrence of an undesirable operating condition includes a sensing element to sense the occurrence of the undesirable operating condition. The trip device further includes an operating arm normally spaced from the sensing element. The sensing element moves into contact with the operating arm upon the occurrence of the undesirable operating condition. The device further includes a trigger to lock the operating arm in its normal operating position, with the sensing element moving the arm relative to the trigger upon the occurrence of the undesirable operating condition. The trigger thereafter acts as a stop to maintain the operating arm in a position spaced from the sensing element.