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Title: Method for assessing motor insulation on operating motors

A method for monitoring the condition of electrical-motor-driven devices. The method is achieved by monitoring electrical variables associated with the functioning of an operating motor, applying these electrical variables to a three phase equivalent circuit and determining non-symmetrical faults in the operating motor based upon symmetrical components analysis techniques.
Inventors:
 [1];  [1]
  1. (Oak Ridge, TN)
Issue Date:
OSTI Identifier:
870873
Assignee:
Martin Marietta Energy Systems, Inc. (Oak Ridge, TN) ORNL
Patent Number(s):
US 5612601
Application Number:
08/568550
Contract Number:
AC05-84OR21400
Research Org:
LOCKHEED MARTIN ENRGY SYST INC
Country of Publication:
United States
Language:
English
Subject:
method; assessing; motor; insulation; operating; motors; monitoring; condition; electrical-motor-driven; devices; achieved; electrical; variables; associated; functioning; applying; phase; equivalent; circuit; determining; non-symmetrical; faults; based; symmetrical; components; analysis; techniques; analysis techniques; electrical-motor-driven device; analysis technique; monitoring electrical; operating motor; driven device; electrical-motor-driven devices; /318/324/