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Agbontaen, F. O.
Department of Electrical/Electronic Engineering, University of Benin, Benin City, Nigeria
Idiagi, N. S.
Department of Electrical/Electronic Engineering, University of Benin, Benin City, Nigeria
ABSTRACT
Every standard Electrical Power Network must be able
to operate continuously without any major breakdown in order to meet the
ever-growing demand of consumers. Hence, the importance of protection in a
power system cannot be overemphasized. The coordination of the protective relay
is done during the process of system design based on the short circuit current
level. It is the process of determining the sequence of relay operation for
various faults in power system so that the faulted section is cleared in
minimum time. In this study, the
overcurrent relay coordination of Ado-Ekiti 132/33kV injection substation was
obtained with the use of Electrical Transient Analysis Program (ETAP) software.
The results showed that no device tripped when Buses 16 (which connects Ikere
feeder) and 18 (which connects Ado, Iworoko and Ilawe feeders) were faulted.
However, tripping occurred when Buses 19 (Ikere feeder), 26 (Ado Feeder), 27
(Iworoko feeder) and 28 (Ilawe feeder) were faulted. The network relays
provided both primary and secondary protection respectively, based on the
faulted bus.
Keywords: faults, relay, protection, coordination, power system
https://doi.org/10.33922/j.ujet_v7i1_4
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View: 158 | Download: 20
Published
Tuesday, June 01, 2021
Issue
Vol. 7 No. 1, June 2021
Article Section
GENERAL
The contents of the articles are the sole opinion of the author(s) and not of UJET.
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