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Title: Motor monitoring method and apparatus using high frequency current components

A motor current analysis method and apparatus for monitoring electrical-motor-driven devices are disclosed. The method and apparatus utilize high frequency portions of the motor current spectra to evaluate the condition of the electric motor and the device driven by the electric motor. The motor current signal produced as a result of an electric motor is monitored and the low frequency components of the signal are removed by a high-pass filter. The signal is then analyzed to determine the condition of the electrical motor and the driven device. 16 figs.
Inventors:
Issue Date:
OSTI Identifier:
238070
Assignee:
Martin Marietta Energy Systems, Inc., Oak Ridge, TN (United States) PTO; SCA: 440800; PA: EDB-96:095351; SN: 96001594380
Patent Number(s):
US 5,519,337/A/
Application Number:
PAN: 8-145,538
Contract Number:
AC05-84OR21400
Resource Relation:
Other Information: PBD: 21 May 1996
Research Org:
Lockheed Martin Energy Syst Inc
Country of Publication:
United States
Language:
English
Subject:
44 INSTRUMENTATION, INCLUDING NUCLEAR AND PARTICLE DETECTORS; ELECTRIC MOTORS; MONITORING; EQUIPMENT; ELECTRIC MEASURING INSTRUMENTS; DESIGN; ELECTRIC CURRENTS; MEASURING METHODS

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