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Title: Vibration of safety injection pump motors

This paper covers a fault encountered in the safety injection pump motors of the French 900 MWe unit nuclear power stations. This fault was not revealed either during the low pressure safety injection and containment spray system pump qualification tests under accident conditions or during the special tests on a test bench carried out to attempt to replicate the fault and to identify ways of remedying it. This constitutes a potential common mode of failure of the safety injection system and the containment spray system pumps. The vibration phenomena illustrate the importance of carrying out tests in the plants under conditions as close as possible to those of actual accident situations.
Authors:
Publication Date:
OSTI Identifier:
401978
Report Number(s):
NUREG/CP--0152; CONF-9607103--
ON: TI96013645; TRN: 96:005268-0012
Resource Type:
Conference
Resource Relation:
Conference: 4. NRC/ASME symposium on valve and pump testing in nuclear power plants, Washington, DC (United States), 15-18 Jul 1996; Other Information: PBD: [1996]; Related Information: Is Part Of Proceedings of the 4th NRC/ASME symposium on valve and pump testing; PB: 719 p.
Research Org:
American Society of Mechanical Engineers, New York, NY (United States)
Country of Publication:
United States
Language:
English
Subject:
21 NUCLEAR POWER REACTORS AND ASSOCIATED PLANTS; ELECTRIC MOTORS; MECHANICAL VIBRATIONS; FAILURES; PWR TYPE REACTORS; LOW PRESSURE COOLANT INJECTION; CONTAINMENT SPRAY SYSTEMS; WATER PUMPS; FRANCE