Research on insulating material for current transformer in complex climate condition

Xiaoyu He; Xiaoxiao Zhao; Shuge Liu; Xi Wang; Aijing Li; Li Mu; Zhenhai Zhang

doi:10.1117/12.3007377

25 October 2023 Research on insulating material for current transformer in complex climate condition

Xiaoyu He, Xiaoxiao Zhao, Shuge Liu, Xi Wang, Aijing Li, Li Mu, Zhenhai Zhang

Proceedings Volume 12801, Ninth International Conference on Mechanical Engineering, Materials, and Automation Technology (MMEAT 2023); 1280103 (2023) https://doi.org/10.1117/12.3007377
Event: Ninth International Conference on Mechanical Engineering, Materials, and Automation Technology (MMEAT 2023), 2023, Dalian, China

Abstract

The degradation of oil-paper insulation materials is the main reason leading to the fault of oil-immersed equipment. Thermal deterioration and hydrolysis are primary factors. The stability of high voltage equipment that used in northwest of China is relatively impacted by complex climate condition. The temperature in northwest varies greatly between summer and winter. The climate factors are characterized by different temperature and humidity. The main parameters of insulating material (permittivity, conductivity and tan(δ)) in different conditions are measured by frequency domain spectroscopy (FDS). The moisture content of insulation materials is calibrated by Karl Fischer Titration (KFT). The electric potential and temperature distribution of oil-immersed inverted current transformer under different climate condition are simulated by COMSOL Multiphysics. The simulation result indicates that the influence of temperature and humidity on electric potential and temperature distribution is significant.

(2023) Published by SPIE. Downloading of the abstract is permitted for personal use only.

Citation Download Citation

Xiaoyu He, Xiaoxiao Zhao, Shuge Liu, Xi Wang, Aijing Li, Li Mu, and Zhenhai Zhang "Research on insulating material for current transformer in complex climate condition", Proc. SPIE 12801, Ninth International Conference on Mechanical Engineering, Materials, and Automation Technology (MMEAT 2023), 1280103 (25 October 2023); https://doi.org/10.1117/12.3007377

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