Influence of Temperature and Moisture on Aging Degree of Transformer Oil Paper Insulation
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The higher the temperature, the faster the aging of oil paper insulation, and the faster the polymerization degree drops. The relationship between aging rate change and temperature stress change is not linear. The more moisture content of oil paper insulation, the faster the aging of oil paper insulation, and the faster the polymerization degree drops. The influence of temperature factor on the aging rate of oil paper insulation will increase with the increase of moisture content in the oil paper insulation system. The influence of water factors on the aging rate of oil paper insulation increased with the increase of temperature. That is, temperature and moisture have a synergistic effect on the aging of oil paper insulation. The higher the aging temperature, the higher the moisture content of oil paper insulation, and the faster the furfural generation rate. The furfural content in oil increased slowly at the beginning and increased rapidly in the later stage. The distribution of furfural in oil paper will be affected by moisture content, and the increase rate of furfural content in oil is not corresponding to the rate of decrease in polymerization degree.
Temperature, Moisture, Transformer Oil Paper Insulation.