Patent ID: 9160215
Filing Date: 2015-10-13
Classification: G01R,H02K

Abstract:
1. A method of monitoring failure mechanisms of a rotor's outer region or a stator's inner region, in an electric generator or motor, by measuring operating conditions of a part of the outer region of the rotor or a part of the inner region of the stator, the method comprising: installing an array of desired sensors in the outer region of the rotor or in the inner region of the stator, wherein the array of sensors partially spans an axial length of the rotor or partially spans an axial length of the stator; measuring, within viewing windows of the sensors, operating conditions of the inner region of the stator or the outer region of the rotor, respectively; monitoring failure mechanisms of the stator's inner region or the rotor's outer region from the measurements taken within viewing windows of the sensors; and concluding state of failure mechanisms of the stator's inner region or the rotor's outer region outside viewing windows of the sensors from state of monitored failure mechanisms within viewing windows of the sensors.