Power loss estimation of polymeric housing surge arrester using leakage current and temperature approach

Conference on Innovation in Technology and Engineering Science

工业技术（总论）

Novizon^1 ; Malek, Z.A.^2 ; Ahmad, M.H.^2 ; Waldi, E.P.^1 ; Aulia^1 ; Laksono, H.D.^1 ; Riska, N.^1

Electrical Engineering Department, Engineering Faculty, Andalas University Padang, Indonesia^1

High Voltage and High Current Institute, Electrical Engineering Faculty, Universiti Teknologi Malaysia, Malaysia^2

关键词: Electrical modeling;    Electro-thermal model;    Intersection points;    Metal oxide surge arresters;    Operating temperature;    Polymeric housing;    Thermal characteristics;    Thermal instabilities;   

Others  :  https://iopscience.iop.org/article/10.1088/1757-899X/602/1/012008/pdf
DOI  :  10.1088/1757-899X/602/1/012008

学科分类：工业工程学

来源: IOP

【 摘 要 】

The good operation of metal oxide surge arresters depends on the increment of temperature. If the arresters cannot quickly disperse the absorbed energy into the ambient, arresters temperature may exceed its operating temperature limit. Consequently, thermal runaway occurs and results in power loss. In this paper, thermal characteristics and thermal stability based on power loss calculation were investigated. Applied voltages, leakage current, and temperature were the main parameters consideration. The power loss calculated by the electrical model is the input to the thermal model. The electro-thermal model is used to determine the two intersection points (stable operating point and the thermal instability point) of the power input and heat loss curves. The results show that irrespective of the different magnitude voltages applied to the arrester and different energy ratings for the elements, the power loss occurs at the certain applied voltage.