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Title: Advanced valve motor operator diagnostic system

A brief summary of the current use of diagnostic applications to motor-operated valves (MOVs) to satisfy the requirements of IE Bulletin 85-03, IE 85-03 (Supplement 1), and preventive maintenance applications is presented in this paper. This paper explains a new system for diagnostics, signature analysis, and direct measurement of actual load on MOV in the closed direction. This advanced valve motor operator diagnostic system (AVMODS) system comprises two complementary segments: (1) valve motor operator diagnostic system (V-MODS) and (2) motor current signature analysis (MCSA). AVMODS technical considerations regarding V-MODS and MCSA are discussed.
Authors:
Publication Date:
OSTI Identifier:
5228586
Report Number(s):
CONF-890833--
Journal ID: CODEN: TANSB; TRN: 90-004310
Resource Type:
Conference
Resource Relation:
Journal Name: Transactions of the American Nuclear Society, Supplement; (USA); Journal Volume: 59; Conference: 14. biennial conference on reactor operating experience: plant operations - the human element, Charlotte, NC (USA), 6-9 Aug 1989
Country of Publication:
United States
Language:
English
Subject:
22 GENERAL STUDIES OF NUCLEAR REACTORS; 21 SPECIFIC NUCLEAR REACTORS AND ASSOCIATED PLANTS; NUCLEAR POWER PLANTS; REACTOR MAINTENANCE; VALVES; DIAGNOSTIC TECHNIQUES; ACTUATORS; DATA ACQUISITION; EXPERT SYSTEMS; INSTALLATION; MOTORS; PLANNING; PROGRAMMING; SENSITIVITY; SURVEILLANCE; CONTROL EQUIPMENT; EQUIPMENT; FLOW REGULATORS; MAINTENANCE; NUCLEAR FACILITIES; POWER PLANTS; THERMAL POWER PLANTS 220200* -- Nuclear Reactor Technology-- Components & Accessories; 210800 -- Nuclear Power Plants-- Economics