Method for inspecting wye ring
AssigneeGeneral Electric Company
InventorsThomas Earnest Moldenhauer, Thomas James Batzinger, Francis Alexander Reed, Michael Charles Freda
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Abstract
A method for inspecting a wye ring in a generator includes the steps of dismantling the generator to gain access to the wye ring and at least a portion of a rotor, applying a test signal to the rotor and measuring an inductive voltage at two or more locations near the wye ring. A comparing step compares results from the measuring step to determine if a fault exists in the wye ring. A predetermined difference in inductive voltage measurements indicates presence of the fault.
Claims20
A method for inspecting a wye ring in a generator, the method comprising the steps of:
- dismantling the generator to gain access to the wye ring and at least a portion of a rotor;
- applying a test signal to the rotor;
- measuring an inductive voltage at two or more locations near the wye ring;
- comparing results from the measuring step to determine if a fault exists in the wye ring, a predetermined difference in inductive voltage measurements indicating presence of the fault.
A method for inspecting a wye ring in a generator, the method comprising the steps of:
- applying a test signal to the rotor;
- measuring an inductive voltage at two or more locations near the wye ring;
- comparing results from the measuring step to determine if a fault exists in the wye ring, a predetermined difference in inductive voltage measurements indicating presence of the fault;
- and
- wherein the method is performed on the generator in-situ.
Dependencies are inferred from the claim text.