Modelling of Metal Oxide Surge Arresters in Simulation Software DYNAST | Zendy

Vladislav Síťař | Zendy; Jan Veleba | Zendy

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Modelling of Metal Oxide Surge Arresters in Simulation Software DYNAST

Author(s) -

Vladislav Síťař,

Jan Veleba

Publication year - 2017

Publication title -

transactions on electrical engineering

Language(s) - English

Resource type - Journals

ISSN - 1805-3386

DOI - 10.14311/tee.2017.1.021

Subject(s) - surge arrester , overvoltage , emtp , varistor , lightning (connector) , software , lightning arrester , computer science , simulation software , matlab , electrical engineering , electric power system , reliability engineering , engineering , power (physics) , voltage , physics , operating system , quantum mechanics , programming language

This paper describes the possibilities for mathematical modelling of gap-less surge arresters in the simulation software DYNAST. This tool does not belong to standard modelling softwares in the field of electric power engineering. However, it may provide some key advantages when compared to more frequently used software such as EMTP-ATP and MATLAB-Simulink. Description of the metal oxide varistor modelling at temporary and switching overvoltages, fast-front states, and lightning strokes is presented. More information about the defined internal structure of the surge arrester models and ways for implementing respective V-I characteristics are provided. To verify the correct behaviour of the models, both slow and fast overvoltage scenarios are simulated and evaluated.

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