Method for inspecting wye ring

A method (700) for inspecting a wye ring in a generator includes the steps of dismantling (710) the generator to gain access to the wye ring (720) and at least a portion of a rotor, applying a test signal to the rotor and measuring (730) an inductive voltage at two or more locations near the wye rin...

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Bibliographische Detailangaben
Hauptverfasser:	Reed, Francis Alexander, Batzinger, Thomas James, Moldenhauer, Thomas Earnest, Freda, Michael Charles
Format:	Patent
Sprache:	eng ; fre ; ger
Schlagworte:	CONTROL OR REGULATION OF ELECTRIC MOTORS, ELECTRIC GENERATORSOR DYNAMO-ELECTRIC CONVERTERS CONTROLLING TRANSFORMERS, REACTORS OR CHOKE COILS CONVERSION OR DISTRIBUTION OF ELECTRIC POWER DYNAMO-ELECTRIC MACHINES ELECTRICITY GENERATION MEASURING MEASURING ELECTRIC VARIABLES MEASURING MAGNETIC VARIABLES PHYSICS TESTING
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Beschreibung
Zusammenfassung:	A method (700) for inspecting a wye ring in a generator includes the steps of dismantling (710) the generator to gain access to the wye ring (720) and at least a portion of a rotor, applying a test signal to the rotor and measuring (730) an inductive voltage at two or more locations near the wye ring. A comparing step (740) 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.