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Moisture has strong influence on insulation performance of oil pressboard system in power transformer. Moisture in oil immersed pressboard is uniform under constant temperature condition. Moisture in pressboard can be calculated according Oommen paper oil equilibrium curves. Temperature of power transformer is related to the atmospheric temperature and the load. If atmospheric temperature or load...
In this paper, the influence of corona intensity on the TSC characteristics of HTV silicone rubber was investigated. Five levels of corona voltage were employed to deteriorate the samples respectively. The TSC was measured for the samples exposure different deteriorating duration. Experimental results show that the variation trend of TSC curves with the corona intensity is not identical at different...
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