Abstract: There is provided a system and method for detecting an abnormal operation of a motor controlling an operating parameter of a machine. Both a torque of the motor and the operating parameter are monitored. A memory stores a plurality of predetermined torque values indicative of a normal operation of the motor. A plurality of operating parameter values are also stored in the memory with each operating parameter value having a corresponding predetermined torque value associated therewith. The predetermined torque value corresponding to the monitored operating parameter is retrieved from the memory and compared to the monitored torque value to detect an abnormal operation of the motor.

Abstract: There is provided a method for determining an abnormality during operation of a high voltage disconnect switch, the method comprising: determining a current position of an arm of the high voltage disconnect switch operatively connected to a motor, the motor being operated for driving the arm of the high voltage disconnect switch; determining a torque of the motor corresponding to the current position of the arm; comparing the torque of the motor to a torque threshold for the current position of the arm; and outputting an abnormality signal based on the comparison.

Abstract: There is provided a method for measuring abnormality detection parameters of a disconnect switch, comprising: releasably connecting a first sensor to the disconnect switch, the first sensor adapted to measure a first parameter related to a position of an arm of the disconnect switch, the disconnect switch comprising a rotating actuation element operatively connected to the arm for moving the arm between a closed position and an open position; releasably connecting a second sensor to the rotating actuation element, the second sensor adapted to measure a second parameter related to a torque of the rotating actuation element; moving the arm using the actuation element; measuring and storing in memory the first and second parameters while the arm is moving; and disconnecting the first and second sensors.