Overvoltage, Undervoltage, Overcurrent And Undercurrent Protection Of 132/33kv Substation (Case Study: Egbu Transmission Center):- Anosike, Ikenna H
ABSTRACT
This project presents the fault protection due to
overvoltage, undervoltage, undercurrent and overcurrent of a 132/33KV
Substation, which is required in order to provide information for the selection
of instruments, setting of relays and stability of system operation. A power
system is not static but changes during operation. Faults usually occur in a
power system due to either insulation failure, flashover, physical damage or
human error. These faults, may either be three phase in nature involving all
three phases in a symmetrical manner, or may be asymmetrical where usually only
one or two phases may be involved. Faults may also be caused by either
short-circuits to earth or between live conductors, or may be caused by broken
conductors in one or more phases. Sometimes simultaneous faults may occur
involving both short-circuit and broken conductor faults. Balanced three phase
faults may be analysed using an equivalent single phase circuit. With
asymmetrical three phase faults, the use of symmetrical components help to
reduce the complexity ofthe calculations as transmission lines and components
are by and large symmetrical, although the fault may be asymmetrical. Fault
protection is usually carried out as they give solutions which are sometimes varies
over different voltage and power ratings. In this Project, expressions that
will be used in computer simulations using ETAP was derived.
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ANOSIKE, A (2025). Overvoltage, Undervoltage, Overcurrent And Undercurrent Protection Of 132/33kv Substation (Case Study: Egbu Transmission Center):- Anosike, Ikenna H. Mouau.afribary.org: Retrieved Jul 29, 2025, from https://repository.mouau.edu.ng/work/view/overvoltage-undervoltage-overcurrent-and-undercurrent-protection-of-13233kv-substation-case-study-egbu-transmission-center-anosike-ikenna-h-7-2
ANOSIKE, ANOSIKE. "Overvoltage, Undervoltage, Overcurrent And Undercurrent Protection Of 132/33kv Substation (Case Study: Egbu Transmission Center):- Anosike, Ikenna H" Mouau.afribary.org. Mouau.afribary.org, 28 Jul. 2025, https://repository.mouau.edu.ng/work/view/overvoltage-undervoltage-overcurrent-and-undercurrent-protection-of-13233kv-substation-case-study-egbu-transmission-center-anosike-ikenna-h-7-2. Accessed 29 Jul. 2025.
ANOSIKE, ANOSIKE. "Overvoltage, Undervoltage, Overcurrent And Undercurrent Protection Of 132/33kv Substation (Case Study: Egbu Transmission Center):- Anosike, Ikenna H". Mouau.afribary.org, Mouau.afribary.org, 28 Jul. 2025. Web. 29 Jul. 2025. < https://repository.mouau.edu.ng/work/view/overvoltage-undervoltage-overcurrent-and-undercurrent-protection-of-13233kv-substation-case-study-egbu-transmission-center-anosike-ikenna-h-7-2 >.
ANOSIKE, ANOSIKE. "Overvoltage, Undervoltage, Overcurrent And Undercurrent Protection Of 132/33kv Substation (Case Study: Egbu Transmission Center):- Anosike, Ikenna H" Mouau.afribary.org (2025). Accessed 29 Jul. 2025. https://repository.mouau.edu.ng/work/view/overvoltage-undervoltage-overcurrent-and-undercurrent-protection-of-13233kv-substation-case-study-egbu-transmission-center-anosike-ikenna-h-7-2