Title :
Study of MOV operator and motor characteristics to determine torque capability
Author :
Hussain, Drs B. ; Behera, A.K. ; Alsammarae, A.J.
Author_Institution :
KCI Eng. Consultants, Downers Grove, IL, USA
fDate :
30 Oct-5 Nov 1994
Abstract :
Motor operated valves (MOV´s) used in the nuclear generating stations requires high thrust capability of a motor when demanded during an accident scenario. This paper specifically deals with the behavior and classification of motors used in AC MOVs. This paper also deals with a methodology that may be consistently applied to determine the realistic capability (that is rating) of the motor/operator. As an ongoing resolution to the NRC IEB 89-10 issue of the impact of degraded voltage condition and other environmental conditions on torque capability of the Motor Operated Valves (MOVs), the determination of appropriate motor torque capability is essential
Keywords :
AC motors; electric actuators; fission reactor cooling; fission reactor safety; valves; NRC IEB 89-10 issue; accident scenario; degraded voltage condition; high thrust capability; motor characteristics; motor operated valves; motor torque capability; motor/operator; nuclear generating stations; realistic capability; AC motors; Accidents; Actuators; Degradation; Manufacturing; Nuclear power generation; Pistons; Torque; Valves; Voltage;
Conference_Titel :
Nuclear Science Symposium and Medical Imaging Conference, 1994., 1994 IEEE Conference Record
Conference_Location :
Norfolk, VA
Print_ISBN :
0-7803-2544-3
DOI :
10.1109/NSSMIC.1994.474646
