Graphic-Analytical Method for Detecting the Relay Protection False Tripping Zones

Pavel Pinchukov, Svetlana Makasheva

2022

Abstract

The relay protection devices of a traction power supply system should work correctly and steadily to provide uninterrupted traffic. High intensity of heavy haul traffic significantly increases a load on all elements of the traction power supply system. Heavy haul traffic causes several problems in catenary feeder’s relay protection operation. Increased currents values while the heavy haul traffic can reach values of short-circuit currents. In this case, the relay protection devices will tripping false and switch off a supply line without any damages. Unnecessary relay protection false tripping leads to a pause in heavy haul traffic and brings significant financial loses. Experimental long-term observation suggests that the current relay protection detuning technology is not well optimized and needs to be improved. Identification of operating conditions of the relay protection devices at the particular railway section was clarified by current research. Proposed the graphic-analytical method allows simplifying the relay protection detuning from the traction load characteristics. That makes it possible to reduce the number of cases of the relay protection false operation. The method based on the comparison between the real load areas and the installed relay protection characteristics. Examples of the successful correction of protection parameters in order to tune out from the load zone are shown in details.

Paper Citation

in Harvard Style

Pinchukov P. and Makasheva S. (2022). Graphic-Analytical Method for Detecting the Relay Protection False Tripping Zones. In Proceedings of the 3rd International Symposium on Automation, Information and Computing - Volume 1: ISAIC; ISBN 978-989-758-622-4, SciTePress, pages 397-404. DOI: 10.5220/0011947800003612

in Bibtex Style

@conference{isaic22,
author={Pavel Pinchukov and Svetlana Makasheva},
title={Graphic-Analytical Method for Detecting the Relay Protection False Tripping Zones},
booktitle={Proceedings of the 3rd International Symposium on Automation, Information and Computing - Volume 1: ISAIC},
year={2022},
pages={397-404},
publisher={SciTePress},
organization={INSTICC},
doi={10.5220/0011947800003612},
isbn={978-989-758-622-4},
}

in EndNote Style

TY - CONF

JO - Proceedings of the 3rd International Symposium on Automation, Information and Computing - Volume 1: ISAIC
TI - Graphic-Analytical Method for Detecting the Relay Protection False Tripping Zones
SN - 978-989-758-622-4
AU - Pinchukov P.
AU - Makasheva S.
PY - 2022
SP - 397
EP - 404
DO - 10.5220/0011947800003612
PB - SciTePress