Study on the transformer oil filtration process: article / Mohd Idham Samsudin

The study was carried out on transformer filtration at Janamanjung Power Plant 3x700MW. The Filtration process offers a practical, proven and economical method to purify the oil and use it again for high voltage equipment. Filtration of insulating oil is the process of removing moisture, dissolved combustible gas and particular matter as determine by oil transformers test. Test of moisture content, dielectric breakdown, interfacial tension and dissolved gas analysis on the transformer oil were studied to know the time of purifying of changing it. After performing the tests, the oil can classified as reusable with minor reconditioning or disposable and reduces downtime, minimizes the chance of sudden failure and thus allows optimum use of the transformer.