G - Physics – 01 – L
Patent
G - Physics
01
L
G01L 5/26 (2006.01) F16K 37/00 (2006.01) G01L 3/14 (2006.01) G01L 5/00 (2006.01) G01P 3/36 (2006.01) G01P 3/486 (2006.01) G21C 17/00 (2006.01)
Patent
CA 2137183
Disclosed is apparatus and a system for measuring and monitoring the actual mechanical power being produced by an electric motor and measuring and monitoring the reactive torque acting on and the rotational speed of a drive shaft of the electric motor used to drive a valve actuator of a motor operated valve (MOV). The apparatus and system is comprised of a motor power measuring cell inserted between and bolted to the electric motor housing and to the valve actuator housing of commercial MOVs to provide continuous in-service valve and motor diagnostics. The motor power measuring cell is provided with a first measuring means for measuring the torque acting on the drive shaft and a second measuring means for measuring the rotational speed of the drive shaft.
Bereskin & Parr
Westinghouse Electric Corporation
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