On-Site Partial Discharge Monitoring System in Generator at Tanjung Bin Power Plant, Johor, Malaysia

Abstract

Power generation is a business that ought to satisfy industrial and consumer electrical power needs. Power generation technology has emerged from conventional power plants, which are mostly steam power plants, evolving into more complicated nuclear power plants. While the mechanical arrangements in the power plants are usually unique and distinct from one another, their electrical assemblies are almost the same; the major factor considered is sizing of the electrical equipments. The electrical generator is therefore one of the fundamental equipment that every power plant must have. In principle, the generator is crucial equipment that needs proper maintenance in order to produce steady output supply. The objective of this study is to is to conduct on-site partial discharge monitoring system of 3 unit generators stator winding at Tanjung Bin Power Plant, Johor, Malaysia as condition based monitoring (CBM) system. Partial discharge characteristics of unit 10, 20 and 30 generators stator winding were compared respectively. Software designed by Iris LP was used throughout these processes. The software-PDView demonstrates graphical view of the partial discharge occurrence in the generator stator winding. Compiled data were analyzed using Microsoft Excel in order to establish an evaluation of the generator stator winding.  The analyzed results showed that all generators were in good condition.