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Reliability of diesel generators in the Finnish and Swedish nuclear power plants

Publiceringsår

1989

Upphovspersoner

Pulkkinen, Urho; Mankamo, Tuomas; Vanhala, Juhani; Huovinen, Tapio; Norros, Leena

Abstrakt

Diesel generators are used as emergency AC-power sources in nuclear power plants and they produce electric power for other emergency systems during accidents in which offset power is lost. The reliability of diesel generators is thus of major concern for overall safety of nuclear power plants. In this study we consider the reliability of diesel generators in the Swedish and Finnish nuclear power plants on the basis of collected operational experience. We classify the occurred failures according to their functional criticality, type and cause. The failures caused by human errors in maintenance and testing are analysed in detail. We analyse also the reliability of the diesel generator subsystems. Further, we study the effect of surveillance test and the type of test on the reliability. Finally we construct an unavailability model for single dieselgenerator unit and discuss the findings of the study giving some practical recommendations.
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Organisationer och upphovspersoner

Publikationstyp

Publikationsform

Separat verk

Målgrupp

Facklig

UKM:s publikationstyp

D4 Publicerad utvecklings- eller forskningsrapport eller -utredning

Publikationskanalens uppgifter

Journal

Valtion teknillinen tutkimuskeskus. Tiedotteita

Förläggare

VTT Technical Research Centre of Finland

Nummer

1070

Öppen tillgång

Öppen tillgänglighet i förläggarens tjänst

Nej

Licens för förläggarens version

Annan licens

Parallellsparad

Nej

Övriga uppgifter

Nyckelord

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Språk

engelska

Internationell sampublikation

Nej

Sampublikation med ett företag

Nej

Publikationen ingår i undervisnings- och kulturministeriets datainsamling

Nej