Detection of cross-country fault on distance protection

Distance relay is one of protection components in transmission line. It is widely used as the main protection that gives a tripping signal to the Circuit Breaker (CB) when the fault occurs in the system. When short circuit faults occur in transmission line, the distance relays provide the protection...

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Main Author:	Omar, Nur Afifah
Format:	Thesis
Language:	English
Published:	2015
Subjects:	TK Electrical engineering Electronics Nuclear engineering
Online Access:	http://eprints.utm.my/id/eprint/54594/25/NurAfifahOmarMFKE2015.pdf
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spelling	my-utm-ep.545942020-10-20T02:34:29Z Detection of cross-country fault on distance protection 2015-03 Omar, Nur Afifah TK Electrical engineering. Electronics Nuclear engineering Distance relay is one of protection components in transmission line. It is widely used as the main protection that gives a tripping signal to the Circuit Breaker (CB) when the fault occurs in the system. When short circuit faults occur in transmission line, the distance relays provide the protection and trip the CB by disconnecting the faulty portion from the healthy section. The main purpose of this research is to find the detection of Cross-Country Fault (CCF) on Distance Protection (DP). During this CCF condition, the faults are in an abnormal condition. This research is performed on a simple circuit model and IEEE test system with 6 buses, 9 buses and 14 bus systems. By using PSCAD/EMTDC software, the Mho characteristics and Bergeron model type of the transmission lines are modelled and have been simulated to generate the output current and voltage that are used to calculate the reach impedance for protected Zone 1. From the simulation results, it can be observed that the fault voltage and current are almost at the same values with the previous research on the normal fault. It means that the voltage and current will become highly fluctuated during the CCF condition. The result analysis is based on CCF with different locations at the same voltage level and CCF with different locations at different voltage levels. To study the performance of CCF condition, the outputs of all types of fault were considered in this project. It is found that the relays in most of the fault’s conditions are operated in the protected zone. Finally, it can be concluded that the effect of CCF on DP are successfully identified. 2015-03 Thesis http://eprints.utm.my/id/eprint/54594/ http://eprints.utm.my/id/eprint/54594/25/NurAfifahOmarMFKE2015.pdf application/pdf en public http://dms.library.utm.my:8080/vital/access/manager/Repository/vital:86026 masters Universiti Teknologi Malaysia, Faculty of Electrical Engineering Faculty of Electrical Engineering
institution	Universiti Teknologi Malaysia
collection	UTM Institutional Repository
language	English
topic	TK Electrical engineering Electronics Nuclear engineering
spellingShingle	TK Electrical engineering Electronics Nuclear engineering Omar, Nur Afifah Detection of cross-country fault on distance protection
description	Distance relay is one of protection components in transmission line. It is widely used as the main protection that gives a tripping signal to the Circuit Breaker (CB) when the fault occurs in the system. When short circuit faults occur in transmission line, the distance relays provide the protection and trip the CB by disconnecting the faulty portion from the healthy section. The main purpose of this research is to find the detection of Cross-Country Fault (CCF) on Distance Protection (DP). During this CCF condition, the faults are in an abnormal condition. This research is performed on a simple circuit model and IEEE test system with 6 buses, 9 buses and 14 bus systems. By using PSCAD/EMTDC software, the Mho characteristics and Bergeron model type of the transmission lines are modelled and have been simulated to generate the output current and voltage that are used to calculate the reach impedance for protected Zone 1. From the simulation results, it can be observed that the fault voltage and current are almost at the same values with the previous research on the normal fault. It means that the voltage and current will become highly fluctuated during the CCF condition. The result analysis is based on CCF with different locations at the same voltage level and CCF with different locations at different voltage levels. To study the performance of CCF condition, the outputs of all types of fault were considered in this project. It is found that the relays in most of the fault’s conditions are operated in the protected zone. Finally, it can be concluded that the effect of CCF on DP are successfully identified.
format	Thesis
qualification_level	Master's degree
author	Omar, Nur Afifah
author_facet	Omar, Nur Afifah
author_sort	Omar, Nur Afifah
title	Detection of cross-country fault on distance protection
title_short	Detection of cross-country fault on distance protection
title_full	Detection of cross-country fault on distance protection
title_fullStr	Detection of cross-country fault on distance protection
title_full_unstemmed	Detection of cross-country fault on distance protection
title_sort	detection of cross-country fault on distance protection
granting_institution	Universiti Teknologi Malaysia, Faculty of Electrical Engineering
granting_department	Faculty of Electrical Engineering
publishDate	2015
url	http://eprints.utm.my/id/eprint/54594/25/NurAfifahOmarMFKE2015.pdf
_version_	1747817684344504320

Detection of cross-country fault on distance protection

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