Development of an Automatic Phase Selector for Nigerian Power Utility Customers
Power utility customers in a developing country like Nigeria have constituted a habit of changing the electricity supply line from an unavailable or unstable phase to the most available or stable phase. The category of customers involved in this character are those on single phase power supply. How...
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College of Engineering of Afe Babalola University, Ado-Ekiti (ABUAD), Ekiti State, Nigeria
2024-07-01
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| Series: | ABUAD Journal of Engineering Research and Development |
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| Online Access: | https://journals.abuad.edu.ng/index.php/ajerd/article/view/421 |
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| author | Lambe Mutalub Adesina Olalekan Ogunbiyi Bilkisu Jimada-Ojuolape |
| author_facet | Lambe Mutalub Adesina Olalekan Ogunbiyi Bilkisu Jimada-Ojuolape |
| author_sort | Lambe Mutalub Adesina |
| collection | DOAJ |
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Power utility customers in a developing country like Nigeria have constituted a habit of changing the electricity supply line from an unavailable or unstable phase to the most available or stable phase. The category of customers involved in this character are those on single phase power supply. However, this act is being carried out manually at the meter point using the cut-out fuses. This attitude results in phase unbalances, overheating electrical equipment including feeder pillars, transformer coils, network faults, and overall system instability. Thus, this paper presents the development of an Automatic Phase Selector for Nigerian Power Utility Customers. The device automatically selects an available phase from the three-phase power supply lines. The research comprises designing an automatic phase selector circuit, simulation of the designed circuit, programming code development in C- Language for the microcontroller, construction of the designed circuit, and carrying out tests on completed work done to ascertain the effectiveness of the developed system. The system operation involved a three-phase supply from the closest distribution network of the power utility company which is connected to a three-in-one gang switch while the switching ON and OFF of their static switches represent phase-off in an ideal situation. The operational results of this system are presented in the form of the truth table which indicates that the affected customer would not have a power supply only when the 3-phases are under voltage or overvoltage or unavailable. This implies that one of the three phases that meet the three criteria would be switched ON. A pure sine wave was used as input into the Optocoupler and the output waveform of the rectified pulsating signal is separately displayed. This output waveform is very clean and noiseless. Finally, the system when practically tested with an unbalanced three-phase supply, worked perfectly enhancing the flexibility of operating an Automatic Phase selector and hence avoiding manual switching of the phase selector which has been attributed to changing of cut-out fuses and associated stress as well as having a user-friendly phase selector.
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| format | Article |
| id | doaj-art-70a1d984915e4701aa18ed98e5dd9078 |
| institution | DOAJ |
| issn | 2756-6811 2645-2685 |
| language | English |
| publishDate | 2024-07-01 |
| publisher | College of Engineering of Afe Babalola University, Ado-Ekiti (ABUAD), Ekiti State, Nigeria |
| record_format | Article |
| series | ABUAD Journal of Engineering Research and Development |
| spelling | doaj-art-70a1d984915e4701aa18ed98e5dd90782025-08-20T02:58:18ZengCollege of Engineering of Afe Babalola University, Ado-Ekiti (ABUAD), Ekiti State, NigeriaABUAD Journal of Engineering Research and Development2756-68112645-26852024-07-017210.53982/ajerd.2024.0702.02-j354Development of an Automatic Phase Selector for Nigerian Power Utility CustomersLambe Mutalub Adesina0Olalekan Ogunbiyi1Bilkisu Jimada-Ojuolape2Centre for Sustainable Energy, Kwara State University, Malete, Ilorin, NigeriaCentre for Sustainable Energy, Kwara State University, Malete, Ilorin, NigeriaDepartment of Electrical and Computer Engineering, Faculty of Engineering and Technology, Kwara State University Power utility customers in a developing country like Nigeria have constituted a habit of changing the electricity supply line from an unavailable or unstable phase to the most available or stable phase. The category of customers involved in this character are those on single phase power supply. However, this act is being carried out manually at the meter point using the cut-out fuses. This attitude results in phase unbalances, overheating electrical equipment including feeder pillars, transformer coils, network faults, and overall system instability. Thus, this paper presents the development of an Automatic Phase Selector for Nigerian Power Utility Customers. The device automatically selects an available phase from the three-phase power supply lines. The research comprises designing an automatic phase selector circuit, simulation of the designed circuit, programming code development in C- Language for the microcontroller, construction of the designed circuit, and carrying out tests on completed work done to ascertain the effectiveness of the developed system. The system operation involved a three-phase supply from the closest distribution network of the power utility company which is connected to a three-in-one gang switch while the switching ON and OFF of their static switches represent phase-off in an ideal situation. The operational results of this system are presented in the form of the truth table which indicates that the affected customer would not have a power supply only when the 3-phases are under voltage or overvoltage or unavailable. This implies that one of the three phases that meet the three criteria would be switched ON. A pure sine wave was used as input into the Optocoupler and the output waveform of the rectified pulsating signal is separately displayed. This output waveform is very clean and noiseless. Finally, the system when practically tested with an unbalanced three-phase supply, worked perfectly enhancing the flexibility of operating an Automatic Phase selector and hence avoiding manual switching of the phase selector which has been attributed to changing of cut-out fuses and associated stress as well as having a user-friendly phase selector. https://journals.abuad.edu.ng/index.php/ajerd/article/view/421Cut-out FusesDistribution NetworksPhase SelectorPower Utility CustomersProgramming CodeTruth Table |
| spellingShingle | Lambe Mutalub Adesina Olalekan Ogunbiyi Bilkisu Jimada-Ojuolape Development of an Automatic Phase Selector for Nigerian Power Utility Customers ABUAD Journal of Engineering Research and Development Cut-out Fuses Distribution Networks Phase Selector Power Utility Customers Programming Code Truth Table |
| title | Development of an Automatic Phase Selector for Nigerian Power Utility Customers |
| title_full | Development of an Automatic Phase Selector for Nigerian Power Utility Customers |
| title_fullStr | Development of an Automatic Phase Selector for Nigerian Power Utility Customers |
| title_full_unstemmed | Development of an Automatic Phase Selector for Nigerian Power Utility Customers |
| title_short | Development of an Automatic Phase Selector for Nigerian Power Utility Customers |
| title_sort | development of an automatic phase selector for nigerian power utility customers |
| topic | Cut-out Fuses Distribution Networks Phase Selector Power Utility Customers Programming Code Truth Table |
| url | https://journals.abuad.edu.ng/index.php/ajerd/article/view/421 |
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