A Load Tap Changer (LTC) failure can be catastrophic to the rest of the electric power system. SDMyers, a transfomer reliability company, estimates that about 40 percent of LTC-equipped transformer ...
Many Westinghouse UVTs were placed in service more than 40 years ago, and even the youngest ones have been in the field for more than 25 years. Spare parts are costly and increasingly difficult to ...
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