APPLICATION OF DIRECTIONAL CURRENT PROTECTION FOR DETECTION OPEN PHASE LOADING MODES IN THE GRIDS WITH EFFICIENTLY GROUNDED NEUTRAL

Authors

  • Mykhailo Burbelo Vinnytsia National Technical University
  • Sergiy Melnytchyk South-West Electric Energy System of State Enterprise of «NEC «Ukrenergo»
  • Olexiy Emelianov Vinnytsia National Technical University

Keywords:

open-phase modes, relay protection, conventional power of negative sequence, pulsating power

Abstract

The paper analyzes the values, directions and relations of conventional power of zero and negative
sequence in longitudinal asymmetry modes. The possibility of such values application for protection of grids
with efficiently grounded neutral is proved.
For the protection against open-phase modes the directed protection of conventional power of negative
sequence, operating after determining the argument of these powers in p-reset sectors of complex plane is
suggested to use.

 

 

REFERENCES
1. Правила улаштування електроустановок. – Xарків : Вид-во «Форт», 2011. – 736 с.
2. Вагнер К. Ф. Метод симметричных составляющих / К. Ф. Вагнер, Р. Д. Эванс. – ОНТИ НКТП СССР,
1936. – 407 с.
3. Нагай В. И. Релейная защита ответвительных подстанций электрических сетей / Нагай В. И. – М. :
Энергоатомиздат, 2002. – 312 с.

Author Biographies

Mykhailo Burbelo, Vinnytsia National Technical University

Dr. Sc. (Eng.), Professor with the Department of Electrical Engineering Systems of
Energy Supply and Energy Management

Sergiy Melnytchyk, South-West Electric Energy System of State Enterprise of «NEC «Ukrenergo»

Engineer, South-West Electric Energy System of State Enterprise NEC «Ukrenergo»

Olexiy Emelianov, Vinnytsia National Technical University

Student, Institute of Electrical Power Engineering and Electromechanics

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Published

2015-11-25

How to Cite

[1]
M. Burbelo, S. Melnytchyk, and O. Emelianov, “APPLICATION OF DIRECTIONAL CURRENT PROTECTION FOR DETECTION OPEN PHASE LOADING MODES IN THE GRIDS WITH EFFICIENTLY GROUNDED NEUTRAL”, Works of VNTU, no. 2, Nov. 2015.

Issue

Section

Energetics and Electrical Engineering

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