Fuse blow scheme and its impact on overhead distribution system reliability
Electricity has become a major necessity in the modern world, and the availability has to reach to not only the city area but to the rural areas of population as well. To ensure the electrical distribution system is healthy, protection schemes have to be in place and one such method is the use...
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| Format: | Thesis |
| Language: | English English English |
| Published: |
2014
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| Subjects: | |
| Online Access: | http://eprints.uthm.edu.my/1663/1/24p%20QADDAFI%20ABDULLAH%20BAJERAI.pdf http://eprints.uthm.edu.my/1663/2/QADDAFI%20ABDULLAH%20BAJERAI%20COPYRIGHT%20DECLARATION.pdf http://eprints.uthm.edu.my/1663/3/QADDAFI%20ABDULLAH%20BAJERAI%20WATERMARK.pdf |
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| Summary: | Electricity has become a major necessity in the modern world, and the availability
has to reach to not only the city area but to the rural areas of population as well. To
ensure the electrical distribution system is healthy, protection schemes have to be in
place and one such method is the use of fuse blow method. This method is
extensively used by the electric utility’s distribution system in Sabah and has shown
effective protection requirements. However, this comes as a tradeoff to customers
experiencing outages of electric supply. The study was carried out to identify the
impact of fuse blow method and the accompanying results from actual performance
of the overhead distribution system in a selected area, which in this case is the Kota
Belud area. Many factors influence the reliability of the system such as the length of
the distribution feeders, number of customers in each point of the system and
placement of the fuses. The method used was the enumerative analysis to calculate
the reliability impact of the fuse blow method. From the calculations, the result is
then compared with the actual performance of the system in a one year period. The
length of the feeders has the biggest impact to the reliability calculation and this is
reflected by the data of actual performance of the feeders. A delicate balance of
fusing coordination and limiting of feeder length is needed to ensure that the impact
of the fuse blow method to the customer is adequately mitigated. |
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