Aging and defect characterization of motor-operated valves: progress based on NPAR strategy. [PWR; BWR]
The Nuclear Plant Aging Research (NPAR) program strategy is directed at carrying out comprehensive aging assessments in order to define and resolve issues related to aging (including service wear) of electrical and mechanical components and structures at operating reactor facilities and their possible impact on plant safety. This paper describes work recently completed at Oak Ridge National Laboratory which applied the NPAR strategy to motor-operated valves (MOVs). The objective of the work was primarily to develop an understanding of the operating history and conditions and the failure modes of MOVs in nuclear plant service as a preliminary to identifying and recommending methods for trending aging degradation. A second objective was to demonstrate, using MOVs as an example, that the NPAR strategy can be applied to many electrical and mechanical components of nuclear power plants.
- Research Organization:
- Oak Ridge National Lab., TN (USA)
- DOE Contract Number:
- AC05-84OR21400
- OSTI ID:
- 6029076
- Report Number(s):
- CONF-8410142-44; ON: DE85003538
- Resource Relation:
- Conference: 12. water reactor safety research information meeting, Gaithersburg, MD, USA, 23 Oct 1984
- Country of Publication:
- United States
- Language:
- English
Similar Records
Operating experience and aging-seismic assessment of electric motors
Status of motor operated valves aging assessment
Related Subjects
BWR TYPE REACTORS
VALVES
PWR TYPE REACTORS
PERFORMANCE
DEFECTS
ELECTRIC MOTORS
FAILURES
CONTROL EQUIPMENT
EQUIPMENT
FLOW REGULATORS
MOTORS
REACTORS
WATER COOLED REACTORS
WATER MODERATED REACTORS
210100* - Power Reactors
Nonbreeding
Light-Water Moderated
Boiling Water Cooled
210200 - Power Reactors
Nonbreeding
Light-Water Moderated
Nonboiling Water Cooled