MATEC Web Conf.
Volume 215, 2018The 2nd International Conference on Technology, Innovation, Society and Science-to-Business (ICTIS 2018)
|Number of page(s)||4|
|Section||Emerging Technologies and Applied Science|
|Published online||16 October 2018|
Partial Discharge Analysis on Isolator of Transformer
Institut Teknologi Padang, Electrical Engineering Department, Padang, West Sumatra, Indonesia
Transformer has an important role in the world of electricity, especially high voltage. The selection of transformer isolation and routine maintenance should be in the same direction to maintain the reliability of transformer performance and work safety. Partial discharge is caused by many factors, both from the transformer itself, breakdown voltage and the use of an old transformer. The external factor is the temperature around the transformer which results in a decrease in the reliability of the insulator. Both must be based on a standard. As technology advances, in the field of electrical, electronics, computerization has a standard called IEEE Std C57.104 ™ -2008 which is a revision of IEEE Std C57.104-1991. It is designed for science and technology guidance concerning all provisions concerning the security of the worker itself. Which later, by applying the standard is expected transformer service users can suppress loss of production and work accidents. Indication of occurrence of Partial discharge (PD) occurs in transformer at MCC CLO2 (transformer 1) where TDCG 25975 ppm and transformer EN-2M also occur Partial Discharge (transformer 2) with TDCG 5920.6 ppm, while at transformer VE-12 (transformer 3) is still in normal condition where the TDCG value is only 630 ppm. If the Partial Discharge is fatal and damaging the transformer, replacement of the transformer should be done immediately. But the condition of the field not be done directly because of many stages to be done, which directly affect the production process and costs.
© The Authors, published by EDP Sciences, 2018
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