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Before their manufacture was banned in 1979, PCBs were used widely in electrical equipment, including transformers and fluorescent light ballasts. Many transformers still contain traces of PCB-contaminated oil even after the oil has been changed several times. Because of Federal and
Maintaining transformers is not a new idea, but funding for transformer maintenance services continues to decline. The accounting structure incentivizes the purchase of new transformers. Globally, demand for new transformers has lead times extending up to three years. Unless there
Mineral oil is the lifeblood of a transformer and is by far the dominant fluid used in transformers. There are many reasons why mineral oil is used as an insulating fluid in transformers. One, it is an excellent dielectric medium
