Motor monitoring method and apparatus using high frequency current components

Patent · Tue May 21 00:00:00 EDT 1996

OSTI ID:238070

Casada, D A

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.

• Research Organization: Lockheed Martin Energy Syst Inc
• DOE Contract Number: AC05-84OR21400
• Assignee: Martin Marietta Energy Systems, Inc., Oak Ridge, TN (United States)
• Patent Number(s): US 5,519,337/A/
• Application Number: PAN: 8-145,538
• OSTI ID: 238070
• Country of Publication: United States
• Language: English

Related Subjects

44 INSTRUMENTATION
INCLUDING NUCLEAR AND PARTICLE DETECTORS
DESIGN
ELECTRIC CURRENTS
ELECTRIC MEASURING INSTRUMENTS
ELECTRIC MOTORS
EQUIPMENT
MEASURING METHODS
MONITORING