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Title: Method for assessing in-service motor efficiency and in-service motor/load efficiency

A method and apparatus for assessing the efficiency of an in-service motor. The operating characteristics of the in-service motor are remotely measured. The operating characteristics are then applied to an equivalent circuit for electrical motors. Finally the equivalent circuit is evaluated to determine the performance characteristics of said in-service motor. Based upon the evaluation an individual is able to determine the rotor speed, power output, efficiency, and toque of the in-service motor. Additionally, an individual is able to confirm the calculations by comparing measured values with values obtained as a result of the motor equivalent circuit evaluation.
Inventors:
 [1];  [1]
  1. (Oak Ridge, TN)
Issue Date:
OSTI Identifier:
871120
Assignee:
Lockheed Martin Energy Systems, Inc. (Oak Ridge, TN) ORNL
Patent Number(s):
US 5661386
Research Org:
Oak Ridge National Laboratory (ORNL), Oak Ridge, TN
Country of Publication:
United States
Language:
English
Subject:
method; assessing; in-service; motor; efficiency; load; apparatus; operating; characteristics; remotely; measured; applied; equivalent; circuit; electrical; motors; finally; evaluated; determine; performance; based; evaluation; individual; rotor; speed; power; output; toque; additionally; confirm; calculations; comparing; values; obtained; result; performance characteristics; in-service motor; operating characteristics; power output; rotor speed; performance characteristic; measured value; operating characteristic; electrical motor; /318/73/324/