Methods and apparatus for testing centrifugal start mechanisms
AssigneeGeneral Electric Company
InventorKenneth Edward Zick
Life of this patent
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AssigneeGeneral Electric Company
InventorKenneth Edward Zick
Estimating the term…
Methods and apparatus for automated testing of centrifugal start mechanisms for electric motors are described. In one embodiment, the system includes a stepper motor and an adapter secured to the stepper motor shaft. The adapter includes a shaft sized to have a diameter about equal to the diameter of a rotor shaft which carries the start mechanisms to be tested. The system also includes a fiber optic sensor having an optical signal transmitter and an optical signal receiver. The transmitter and receiver, in operation, are substantially aligned on opposing sides of a start mechanism secured to the adapter. When the push collar of a centrifugal start mechanism moves (e.g., at the cutout and cutback speeds), such movement is detected by the sensor. The system further includes a control computer coupled to a programmable motion controller. The motion controller is coupled to a stepper motor drive which is coupled to, and controls, the stepper motor so that the motor shaft accelerates and decelerates at a rapid but fixed rate.
Apparatus for testing a centrifugal start mechanism including a movable push collar, said apparatus comprising:
A system for determining whether a centrifugal start mechanism including a movable push collar properly operates at a selected cutout speed and a selected cutback speed, said system comprising:
A system for determining whether a centrifugal start mechanism including a movable push collar properly operates at a selected cutout speed and a selected cutback speed, said system comprising:
A system for determining whether a centrifugal start mechanism including a movable push collar properly operates at a selected cutout speed and a selected cutback speed, said system comprising:
A method for operating a test system for determining whether a centrifugal start mechanism including a movable push collar properly operates at a selected cutout speed and a selected cutback speed, the system including a motor including a rotatable shaft for carrying the start mechanism, an optical sensor for detecting movement of the push collar as the motor shaft rotates, and a controller coupled to the motor and to the sensor, said method comprising the steps of:
Dependencies are inferred from the claim text.