Research on the influence of microorganism on TAN δ of power transformer oil

摘要

It is first discussed that electric engineering theory and technical question which tan δ increase and the level of insulation decrease are led to microorganism in transformer oil. The microorganism is successful separated from the oil with self-made optional nutrient medium. The conclusion is show that the stranger ability of biological oxidization is existed in oil and the charged bacteria and polarity in metabolic process directly affect on the characteristic of insulation.