Event under the auspices of the Ministry of Economy of Slovak Republic

Location of single-phase ground fault by direct, inverse and zero sequence of overhead power lines in ungrounded power grids of 6 - 10 - 35 kV level voltage

Alexsander Fedotov
Kazan State Power Engineering University

Georgii Vagapov
Kazan State Power Engineering University

Natalia Chernova
Kazan State Power Engineering University


     Last modified: 2017-06-20

Abstract
This paper reviews theoretical and practical points of the frequency spectrum characteristics of direct, inverse and zero sequence of overhead power lines during the single-phase ground fault in ungrounded power grids of 6 - 10 - 35 kV level voltage. Evaluating the effectiveness is shown for each sequence mode settings for determine the fault location.

 

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