THE DESIGN FOR AUTOMATIC SYRINGE SHAKER AS THE MEDIA SUPPORTING METHOD OF DISSOLVED GAS ANALYSIS (DGA) TRANSFORMER OIL
Chico Hermanu B A ; Ratih Rachmatika ; Augustinus Sujono
Department of Electrical Engineering, Faculty of Engineering, Universitas Sebelas Maret, Surakarta
Abstract
The general problem of operational power transformer was appearing in both thermal and electrical failure. Most of the power transformer usually used insulator oil that was functioning as cooler and to dissolve its hazardous gas in order not to circulate independently. Identifying type and number of gas concentration, which was dissolved in oil could provide information about the indication of failure that occurs in the transformer. Method for identifying and analyzing dissolved gas in the oil was called dissolved gas analysis (DGA). Procedure for oil sampling of testing DGA with a method of Morgan Schaffer was using syringe. In the use of syringe, after taking oil sample into syringe and then syringe was extracted to separate components of dissolved gas. Utilizing syringe in the process of extraction was not maximal since it had to be manually done the process of extraction for each syringe. In this research, it was done in making automatic syringe shaker, which could do an extraction of transformer oil to extract dissolved gas in the transformer oil automatically. This research would also determine the time and speed variable to obtain optimizing syringe shaker. This instrument used a DC motor as a driving source. Based on data, which was obtained, the percentage of extraction level that was obtained with using automatic syringe shaker transformer oil was smaller compared with the manual process and it had an error level of 0.124%.
Keywords: Automatic Syringe Shaker, Method Dissolved Gas Analysis, Transformer Oil, DC Motor
Topic: Electric System, Drives, Motors, Machinery