Oil Chromatographic Analysis of First HVDC Converter Transformers Project in Pakistan – A real Project Case Study

Oil Chromatographic Analysis of First HVDC Converter Transformers Project in Pakistan – A real Project Case Study

Rana Shaheer Mehmood1, Luo Xin2, Pisheng Yin3, Asif Hussain4, Wajid Ali5, Faisal Muhammad Talha6
1Department of Electrical Engineering, University of Management and Technology, Lahore 54782, Pakistan
2StateGirdShandongElectricPowerExtraHigh-Power Company, JinanI250118,China
3State Grid Shandong Electric Power Super High Voltage Company, Jinan 250118, China.
4Department of Electrical Engineering, University of Management and Technology, Lahore 54782, Pakistan
5Department of Electrical Engineering, University of Management and Technology, Lahore 54782, Pakistan
6Department of Electrical Engineering, University of Management and Technology, Lahore 54782, Pakistan
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Abstract - This paper presents the concept of the creation of gasses inside the transformer oil and the fault produced inside the transformer is examined. Focusing on the issue of numerous
trademark gases surpassing the norm in a 500 kV transformer oil, this paper dissects the issues keeping in view the trademark gas strategy and three-ratio technique and joined with prior
tests, it was decided that the single-phase converter transformer Pole 1-YDA. The on-location review proves the rightness of the disappointment investigation results and the corresponding
measures were taken on to dispense with the transformer flaws.
Key Words: Converter Transformers, DGA, HVDC, Internal Faults.