Instrument for analysis of electric motors based on slip-poles component
Abstract
A new instrument is described for monitoring the condition and speed of an operating electric motor from a remote location. The slip-poles component is derived from a motor current signal. The magnitude of the slip-poles component provides the basis for a motor condition monitor, while the frequency of the slip-poles component provides the basis for a motor speed monitor. The result is a simple-to-understand motor health monitor in an easy-to-use package. Straightforward indications of motor speed, motor running current, motor condition (e.g., rotor bar condition) and synthesized motor sound (audible indication of motor condition) are provided. With the device, a relatively untrained worker can diagnose electric motors in the field without requiring the presence of a trained engineer or technician. 4 figs.
- Inventors:
- Issue Date:
- Research Org.:
- Oak Ridge National Laboratory (ORNL), Oak Ridge, TN (United States)
- OSTI Identifier:
- 403651
- Patent Number(s):
- 5578937
- Application Number:
- PAN: 8-414,679
- Assignee:
- Martin Marietta Energy Systems, Inc., Oak Ridge, TN (United States)
- DOE Contract Number:
- AC05-84OR21400
- Resource Type:
- Patent
- Resource Relation:
- Other Information: PBD: 26 Nov 1996
- Country of Publication:
- United States
- Language:
- English
- Subject:
- 42 ENGINEERING NOT INCLUDED IN OTHER CATEGORIES; ELECTRIC MOTORS; DIAGNOSTIC TECHNIQUES; MEASURING INSTRUMENTS; DESIGN; REMOTE SENSING; VELOCITY; ELECTRIC CURRENTS; NOISE
Citation Formats
Haynes, H D, Ayers, C W, and Casada, D A. Instrument for analysis of electric motors based on slip-poles component. United States: N. p., 1996.
Web.
Haynes, H D, Ayers, C W, & Casada, D A. Instrument for analysis of electric motors based on slip-poles component. United States.
Haynes, H D, Ayers, C W, and Casada, D A. Tue .
"Instrument for analysis of electric motors based on slip-poles component". United States.
@article{osti_403651,
title = {Instrument for analysis of electric motors based on slip-poles component},
author = {Haynes, H D and Ayers, C W and Casada, D A},
abstractNote = {A new instrument is described for monitoring the condition and speed of an operating electric motor from a remote location. The slip-poles component is derived from a motor current signal. The magnitude of the slip-poles component provides the basis for a motor condition monitor, while the frequency of the slip-poles component provides the basis for a motor speed monitor. The result is a simple-to-understand motor health monitor in an easy-to-use package. Straightforward indications of motor speed, motor running current, motor condition (e.g., rotor bar condition) and synthesized motor sound (audible indication of motor condition) are provided. With the device, a relatively untrained worker can diagnose electric motors in the field without requiring the presence of a trained engineer or technician. 4 figs.},
doi = {},
journal = {},
number = ,
volume = ,
place = {United States},
year = {Tue Nov 26 00:00:00 EST 1996},
month = {Tue Nov 26 00:00:00 EST 1996}
}