Method and apparatus for monitoring motor operated valve motor output torque and power at valve seating

Casada, D A

Title: Method and apparatus for monitoring motor operated valve motor output torque and power at valve seating

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Abstract

A method and apparatus are provided for monitoring a motor operated valve during the brief period when the valve seats and the torque switch trips to deenergize the valve motor. The method uses voltage measurements on the load side of a deenergizing switch that opens to deenergize the motor to determine, among other things, final motor rotational speed and the decelerating torque at motor deenergization. 14 figs.

Inventors:: Casada, D A

Issue Date:: 1996-01-16

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

OSTI Identifier:: 187068

Patent Number(s):: 5483841

Application Number:: PAN: 8-274,738

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

DOE Contract Number:: AC05-84OR21400

Resource Type:: Patent

Resource Relation:: Other Information: PBD: 16 Jan 1996

Country of Publication:: United States

Language:: English

Subject:: 42 ENGINEERING NOT INCLUDED IN OTHER CATEGORIES; VALVES; ACTUATORS; ON-LINE MEASUREMENT SYSTEMS; MONITORING; ELECTRIC CONTROLLERS; OPERATION; SWITCHING CIRCUITS; ELECTRIC POTENTIAL

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                    Casada, D A. Method and apparatus for monitoring motor operated valve motor output torque and power at valve seating.  United States: N. p., 1996. 
        Web.

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                    Casada, D A. Method and apparatus for monitoring motor operated valve motor output torque and power at valve seating.  United States.

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                    Casada, D A. Tue .  
        "Method and apparatus for monitoring motor operated valve motor output torque and power at valve seating".  United States.

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@article{osti_187068,

  title        = {Method and apparatus for monitoring motor operated valve motor output torque and power at valve seating},

  author       = {Casada, D A},

  abstractNote = {A method and apparatus are provided for monitoring a motor operated valve during the brief period when the valve seats and the torque switch trips to deenergize the valve motor. The method uses voltage measurements on the load side of a deenergizing switch that opens to deenergize the motor to determine, among other things, final motor rotational speed and the decelerating torque at motor deenergization. 14 figs.},

  doi          = {},

  journal      = {},
number       = ,

  volume       = ,

  place        = {United States},

  year         = {1996},

  month        = {1}

}

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