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

Patent · Mon Jan 01 00:00:00 EST 1996

OSTI ID:870254

Casada, Donald A ^[1]

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1. Oak Ridge, TN

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.

• Research Organization: Oak Ridge National Laboratory (ORNL), Oak Ridge, TN (United States)
• DOE Contract Number: AC05-84OR21400
• Assignee: Martin Marietta Energy Systems, Inc. (Oak Ridge, TN)
• Patent Number(s): US 5483841
• OSTI ID: 870254
• Country of Publication: United States
• Language: English

Related Subjects

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/