Studies of Monitoring and Diagnosis Systems for Substation Apparatus

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dc.contributor.authorLiang, Yishanen
dc.contributor.committeechairLiu, Yiluen
dc.contributor.committeememberWang, Anboen
dc.contributor.committeememberLai, Jih-Shengen
dc.contributor.departmentElectrical and Computer Engineeringen
dc.date.accessioned2014-03-14T20:30:03Zen
dc.date.adate2006-01-06en
dc.date.available2014-03-14T20:30:03Zen
dc.date.issued2005-12-07en
dc.date.rdate2007-01-06en
dc.date.sdate2006-01-03en
dc.description.abstractSubstation apparatus failure plays a major role in reliability of power delivery systems. Traditionally, most utilities perform regular maintenance in order to prevent equipment breakdown. Condition-based maintenance strategy monitors the condition of the equipment by measuring and analyzing key parameters and recommends optimum maintenance actions. Equipment such as transformers and standby batteries which are valuable and critical assets in substations has attracted increased attentions in recently years. An automated monitoring and diagnosis tool for power transformers based on dissolved gas analysis, ANNEPS v4.0, was developed. The new tool extended the existing expert system and artificial neural network diagnostic engine with automated data acquisition, display, archiving, and alarm notification functions. This thesis also studied substation batteries types and failure mode and surveyed the market of current on-line battery monitors. A practical battery monitoring system architecture was proposed. Analysis rules of measured parameters were developed. The above study and results can provide basics for further designing of a simple battery monitoring system in industry applications.en
dc.description.degreeMaster of Scienceen
dc.identifier.otheretd-01032006-000229en
dc.identifier.sourceurlhttp://scholar.lib.vt.edu/theses/available/etd-01032006-000229/en
dc.identifier.urihttp://hdl.handle.net/10919/30791en
dc.publisherVirginia Techen
dc.relation.haspartThesisYishanLiang.pdfen
dc.rightsIn Copyrighten
dc.rights.urihttp://rightsstatements.org/vocab/InC/1.0/en
dc.subjectPower transformersen
dc.subjectSubstation batteriesen
dc.subjectDissolved gas-in-oil analysisen
dc.subjectDiagnosticsen
dc.subjectOn-line monitoringen
dc.titleStudies of Monitoring and Diagnosis Systems for Substation Apparatusen
dc.typeThesisen
thesis.degree.disciplineElectrical and Computer Engineeringen
thesis.degree.grantorVirginia Polytechnic Institute and State Universityen
thesis.degree.levelmastersen
thesis.degree.nameMaster of Scienceen

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