Instrument for analysis of electric motors based on slip-poles component

Haynes, Howard D; Ayers, Curtis W; Casada, Donald A

Title: Instrument for analysis of electric motors based on slip-poles component

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Abstract

A new instrument 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.

Inventors:

Haynes, Howard D ^[1]; Ayers, Curtis W ^[2]; Casada, Donald A ^[1]

Knoxville, TN
Clinton, TN

Issue Date:: 1996-01-01

Research Org.:: Oak Ridge National Lab. (ORNL), Oak Ridge, TN (United States)

OSTI Identifier:: 870706

Patent Number(s):: 5578937

Assignee:: Martin Marietta Energy Systems, Inc. (Oak Ridge, TN)

Patent Classifications (CPCs):: G - PHYSICS G01 - MEASURING G01R - MEASURING ELECTRIC VARIABLES

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G - PHYSICS G01 - MEASURING G01R - MEASURING ELECTRIC VARIABLES
G01R31/343 - {in operation}

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DOE Contract Number:: AC05-84OR21400

Resource Type:: Patent

Country of Publication:: United States

Language:: English

Subject:: instrument; analysis; electric; motors; based; slip-poles; component; monitoring; condition; speed; operating; motor; remote; location; derived; current; signal; magnitude; provides; basis; monitor; frequency; result; simple-to-understand; health; easy-to-use; package; straightforward; indications; running; rotor; bar; synthesized; sound; audible; indication; provided; device; relatively; untrained; worker; diagnose; field; requiring; presence; trained; engineer; technician; electric motor; motor current; remote location; current signal; motor speed; slip-poles component; electric motors; component provide; /324/318/

Citation Formats


                    Haynes, Howard D, Ayers, Curtis W, and Casada, Donald A. Instrument for analysis of electric motors based on slip-poles component.  United States: N. p., 1996. 
        Web.

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                    Haynes, Howard D, Ayers, Curtis W, & Casada, Donald A. Instrument for analysis of electric motors based on slip-poles component.  United States.

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                    Haynes, Howard D, Ayers, Curtis W, and Casada, Donald A. Mon .  
        "Instrument for analysis of electric motors based on slip-poles component".  United States.  https://www.osti.gov/servlets/purl/870706.

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@article{osti_870706,

  title        = {Instrument for analysis of electric motors based on slip-poles component},

  author       = {Haynes, Howard D and Ayers, Curtis W and Casada, Donald A},

  abstractNote = {A new instrument 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.},

  doi          = {},

  journal      = {},
number       = ,

  volume       = ,

  place        = {United States},

  year         = {1996},

  month        = {1}

}

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