PROTECTION FROM GROUNDING OF STATOR WINDING OF GENERATORS THAT OPERATE ON COLLECTING LINES.

S. I. Golovko, R. A. Vainshtein, E. D. Kobernik

Research output: Contribution to journalArticle

Abstract

Protection from grounding of the stator windings of generators that operate on collecting lines is now carried out by means of a line transformer of zero sequence current with magnetization (LTZC). Owing to the high imbalance current is is not possible to carry out sensitive protection that reacts to a current of industrial frequency. Solving this problem is possible by applying a control current with a frequency of 25 Hz to the generator voltage circuit, since in this case frequency detuning from the imbalance current is possible. This article describes development of a protection based on this principle.

Original languageEnglish
Pages (from-to)1371-1376
Number of pages6
JournalSoviet power engineering
Volume10
Issue number10
Publication statusPublished - Oct 1981

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ASJC Scopus subject areas

  • Engineering(all)

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