As DC transmission voltage increases, the wall bushing becomes longer, and a supporting insulator is introduced to keep conductor straight. Under extremely high electric fields coupled with thermal gradient, surface charge of may distort field distribution increase risk flashover. In this paper, potentials three model epoxy resin composites were systematically investigated under varied amplitud...

Power transmission technology plays an important role in energy sustainability. Bushing is indispensable type of equipment power transmission. In production, the accelerator changes temperature distribution during curing process, influencing formation defects and thus safety output renewable energy. this study, uncured epoxy resin samples with different contents were prepared measured by differ...