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Oil-immersed transformer is the main equipment of power system operation, whose insulation aging research has been a topic that deserves attention. In this paper, based on the self-developed thermal aging oven, the pure oil sample and those of 3 kinds of different oil-immersed material (paper, Polycarbonate, Polyester) were aged under three different temperature (90°C, 110°C, 130°C) for accelerated...
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