Method for Qualification of Non-Safety Grade Electric Equipment in Nuclear Power Generating Stations

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dc.contributor.authorEhrenholm Högberg, Jessica
dc.contributor.departmentChalmers tekniska högskola / Institutionen för teknisk fysiksv
dc.contributor.departmentChalmers University of Technology / Department of Applied Physicsen
dc.date.accessioned2019-07-03T13:07:31Z
dc.date.available2019-07-03T13:07:31Z
dc.date.issued2011
dc.description.abstractThis report is written as a part of a master thesis project where safety requirements for Swedish nuclear power plants, such as the regulations issued by the Swedish Radiation Authority (SSM) and other standards, are used to develop a limited and customized qualification for non-safety grade electric equipment. The qualification is general, but the focus in this report will be on protective devices in the internal electric grid of the power plant and the generator supply line. The electric grid and the equipment of a Swedish BWR has been used as a basis for the qualification. The report also details the incident at Forsmark 1 2006 as a part of the background behind the purpose of such a qualification. The qualification is also demonstrated on an example; a protective relay used to detect overvoltages on the generator busbar. The protective relay did not meet all the requirements of the qualification, mostly due to the difficulty of finding detailed documentation as the requirements for documenting non-safety grade equipment are not stringent as for safety grade. Keywords: qualification, protective relay, nuclear power Please note that this is the public version of the master thesis report and that certain information has been omitted. For access to the full version, contact Westinghouse Electric Sweden AB, Västerås.
dc.identifier.urihttps://hdl.handle.net/20.500.12380/173908
dc.language.isoeng
dc.relation.ispartofseriesCTH-NT - Chalmers University of Technology, Nuclear Engineering
dc.setspec.uppsokPhysicsChemistryMaths
dc.subjectAnnan elektroteknik och elektronik
dc.subjectEnergi
dc.subjectHållbar utveckling
dc.subjectTeknisk fysik
dc.subjectInnovation och entreprenörskap (nyttiggörande)
dc.subjectOther Electrical Engineering, Electronic Engineering, Information Engineering
dc.subjectEnergy
dc.subjectSustainable Development
dc.subjectEngineering physics
dc.subjectInnovation & Entrepreneurship
dc.titleMethod for Qualification of Non-Safety Grade Electric Equipment in Nuclear Power Generating Stations
dc.type.degreeExamensarbete för masterexamensv
dc.type.degreeMaster Thesisen
dc.type.uppsokH
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