Patent ID: 8315021
Filing Date: 2012-11-20
Classification: H02H

Abstract:
1. A motor detecting and protecting apparatus electrically connected with a motor, the motor detecting and protecting apparatus comprising: a detecting unit detecting a state of the motor and outputting at least one first detecting signal and at least one second detecting signal, the detecting unit including: an error determining unit, electrically connected with the detecting unit, for receiving the first detecting signal and the second detecting signal, wherein the error determining unit has a first predetermined value, and the error determining unit outputs a warning signal while a variation value between the first detecting signal and the second detecting signal exceeds the first predetermined value; and a controlling unit, electrically connected with the error determining unit, for receiving the warning signal and stopping an operation of the motor in accordance with the warning signal, the controlling unit having a reset value, after the controlling unit stops the operation of the motor, the controlling unit outputs a controlling signal in accordance with the reset value for restarting the operation of the motor, wherein the reset value comprises a first value and a second value for respectively determining a number of restart times of the motor and the time interval between each restart of the motor.