Power unit impedance and distance protection functions during faults in the external power grid

This paper presents the problem of the risk of an unnecessary tripping of a generation unit’s underimpedance protection functions in circumstances of generator power swings following elimination of long-lasting fault in the external power grid. The fi rst part describes typical solutions of a genera...

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Bibliographic Details
Main Author: Marcin Lizer
Format: Article
Language:English
Published: ENERGA SA 2012-12-01
Series:Acta Energetica
Subjects:
Online Access:http://actaenergetica.org/en/articles/acta-energetica-022012-2/power-unit-impedance-and-distance-protection-functions-during-faults-in-the-external-power-grid/