Proceeding of the Faculty of technical Sciences, Novi Sad

Electrotechnical and Computer Engineering

Vol. 36 No. 09 (2021): Proceedings of Faculty of Technical Sciences

CONFIGURATION AND TESTING OF DIFFERENTIAL PROTECTION FOR THREE WINDING POWER TRANSFORMERS

DOI:
https://doi.org/10.24867/14BE02Milovanovic
Submitted
March 31, 2021
Published
2021-09-04

Abstract

This document presents the basic principles of relay protection. The basic protection functions used in the protection of power transformers were listed and the principle of differential protection was described. The function of differential protection for the used microprocessor relay and corresponding software were explained in detail. By practical work, the most important aspects of differential protection were tested using a test set and analysis of results from the relay and test set were performed.

References

[1] Petar Sarajčev, Robert Kosor, „Zaštita u elektroenergetskom sustavu“, Sveučilište u Splitu, 2012.
[2] ALSTOM, „Network protection & automation guide“, edition May 2011.
[3] ABB, „Transformer protection RET670 - Technical reference manual“, version 1.1.