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

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.

Inventors:
 [1]
  1. Oak Ridge, TN
Publication Date:
Research Org.:
Oak Ridge National Lab. (ORNL), Oak Ridge, TN (United States)
OSTI Identifier:
870254
Patent Number(s):
US 5483841
Assignee:
Martin Marietta Energy Systems, Inc. (Oak Ridge, TN)
DOE Contract Number:  
AC05-84OR21400
Resource Type:
Patent
Country of Publication:
United States
Language:
English
Subject:
method; apparatus; monitoring; motor; operated; valve; output; torque; power; seating; provided; brief; period; seats; switch; trips; deenergize; voltage; measurements; load; deenergizing; determine; final; rotational; speed; decelerating; deenergization; output torque; valve seat; voltage measurement; rotational speed; voltage measurements; operated valve; motor operated; valve seats; brief period; /73/

Citation Formats

Casada, Donald A. Method and apparatus for monitoring motor operated valve motor output torque and power at valve seating. United States: N. p., 1996. Web.
Casada, Donald A. Method and apparatus for monitoring motor operated valve motor output torque and power at valve seating. United States.
Casada, Donald A. Mon . "Method and apparatus for monitoring motor operated valve motor output torque and power at valve seating". United States. https://www.osti.gov/servlets/purl/870254.
@article{osti_870254,
title = {Method and apparatus for monitoring motor operated valve motor output torque and power at valve seating},
author = {Casada, Donald 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.},
doi = {},
url = {https://www.osti.gov/biblio/870254}, journal = {},
number = ,
volume = ,
place = {United States},
year = {1996},
month = {1}
}

Patent:

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