Thermal Instability Analysis of Station Class Surge Arresters Based on Electrothermal Finite Element Simulation

被引：0

作者：

Spaeck-Leigsnering, Yvonne ^{[1
]}

Ruppert, Maren Greta ^{[1
]}

Gjonaj, Erion ^{[1
]}

De Gersem, Herbert ^{[1
]}

Hinrichsen, Volker ^{[2
]}

机构：

[1] Tech Univ TU Darmstadt, Inst Teilchenbeschleunigung & Elektromagnet Felde, Schlossgartenstr 8, D-64289 Darmstadt, Germany

[2] Tech Univ Darmstadt, Fachgebiet Hochspannungstech, Fraunhoferstr 4, D-64283 Darmstadt, Germany

来源：

PROCEEDINGS OF THE 21ST INTERNATIONAL SYMPOSIUM ON HIGH VOLTAGE ENGINEERING, VOL 1 | 2020年 / 598卷

关键词：

Surge arrester; Thermal instability; Electrothermal simulation;

D O I：

10.1007/978-3-030-31676-1_12

中图分类号：

TM [电工技术]; TN [电子技术、通信技术];

学科分类号：

0808 ; 0809 ;

摘要：

The phenomenon of thermal instability is an important practical problem of station class surge arresters. This effect may occur after single or repetitive energy impulse injections to an arrester connected to the power grid. Thermal stability of full scale arresters cannot be investigated in the laboratory. Finite element simulation provides detailed insight to this complex electrothermally coupled problem. Therefore, an ungraded arrester is modeled including all relevant electrothermal physics. After the model is validated, various thermally stable and unstable scenarios are investigated. A criterion that assesses and predicts thermal instability of an arrester is determined. Furthermore, selected model parameters that increase the thermal stability limit are identified in order to optimize future arrester designs.

引用

页码：118 / 130

页数：13

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