Abstract: The performance degradation of oil-immersed louver contacts are the main reason for the DC resistance exceeding the standard on the valve side of UHV converter transformers. In this paper, a ...
unit at 220 kV grid station NTDC Ghakkar. The NTDC spokesman confirmed to media here Tuesday that 250 MVA, 220/132kV auto transformer was successfully energised today. This work, as part of World Bank ...