1. Simulation for Transient Moisture Distribution and Effects on the Electric Field in Stable Condition: 110 kV Oil-Immersed Insulation Paper Bushing
- Author
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Dongyang Wang, Lijun Zhou, Zhixin Yang, Wei Liao, Lujia Wang, and Lei Guo
- Subjects
Oil-immersed insulation paper (OIP) bushing ,110 kV ,capacitor core ,transient moisture distribution ,electric field ,Electrical engineering. Electronics. Nuclear engineering ,TK1-9971 - Abstract
Oil-immersed insulation paper (OIP) bushing is one of the most important equipment in power transmission and distribution systems. Moisture is one of the most serious factors that affect the insulation status of OIP bushing. In this paper, the OIP bushing was assumed to be in a stable and simplicity condition, and then the transient moisture distribution of capacitor core and its effects on the electric field were studied. First, by dissecting a 110 kV OIP bushing, the specific sizes for modelling were obtained. Afterwards, a moisture diffusion model for OIP bushing was established based on COMSOL Multiphysics software, and it was also verified by moisture diffusion experiment. Then, the moisture distribution for different conditions were obtained and analyzed. Finally, a model for the electric field of OIP bushing was established, and then the effects of moisture on the electric field were studied.
- Published
- 2019
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