Aging assessment of surge protective devices in nuclear power plants

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Description

An assessment was performed to determine the effects of aging on the performance and availability of surge protective devices (SPDs), used in electrical power and control systems in nuclear power plants. Although SPDs have not been classified as safety-related, they are risk-important because they can minimize the initiating event frequencies associated with loss of offsite power and reactor trips. Conversely, their failure due to age might cause some of those initiating events, e.g., through short circuit failure modes, or by allowing deterioration of the safety-related component(s) they are protecting from overvoltages, perhaps preventing a reactor trip, from an open circuit ... continued below

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180 p.

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Davis, J. F.; Subudhi, M. & Carroll, D. P. January 1996.

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Description

An assessment was performed to determine the effects of aging on the performance and availability of surge protective devices (SPDs), used in electrical power and control systems in nuclear power plants. Although SPDs have not been classified as safety-related, they are risk-important because they can minimize the initiating event frequencies associated with loss of offsite power and reactor trips. Conversely, their failure due to age might cause some of those initiating events, e.g., through short circuit failure modes, or by allowing deterioration of the safety-related component(s) they are protecting from overvoltages, perhaps preventing a reactor trip, from an open circuit failure mode. From the data evaluated during 1980--1994, it was found that failures of surge arresters and suppressers by short circuits were neither a significant risk nor safety concern, and there were no failures of surge suppressers preventing a reactor trip. Simulations, using the ElectroMagnetic Transients Program (EMTP) were performed to determine the adequacy of high voltage surge arresters.

Physical Description

180 p.

Notes

INIS; OSTI as TI96006194

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  • Other Information: PBD: Jan 1996

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  • Other: TI96006194
  • Report No.: NUREG/CR--6340
  • Report No.: BNL-NUREG--52463
  • Grant Number: AC02-76CH00016
  • DOI: 10.2172/197185 | External Link
  • Office of Scientific & Technical Information Report Number: 197185
  • Archival Resource Key: ark:/67531/metadc664691

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Office of Scientific & Technical Information Technical Reports

Reports, articles and other documents harvested from the Office of Scientific and Technical Information.

Office of Scientific and Technical Information (OSTI) is the Department of Energy (DOE) office that collects, preserves, and disseminates DOE-sponsored research and development (R&D) results that are the outcomes of R&D projects or other funded activities at DOE labs and facilities nationwide and grantees at universities and other institutions.

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  • January 1996

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  • June 29, 2015, 9:42 p.m.

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  • April 8, 2016, 8:14 p.m.

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Davis, J. F.; Subudhi, M. & Carroll, D. P. Aging assessment of surge protective devices in nuclear power plants, report, January 1996; Washington D.C.. (digital.library.unt.edu/ark:/67531/metadc664691/: accessed October 18, 2017), University of North Texas Libraries, Digital Library, digital.library.unt.edu; crediting UNT Libraries Government Documents Department.