Improvement of the SAG ampacity carrying level of existing 275 kV overhead line tower by using the re-conductoring approach
This project presents a methodological approach, suggestions and information in uprating the existing 275kV transmission overhead line by using the re-conductoring approach. Overhead transmission line conductors were given priority in information. Calculation regarding the maximum sag and maximum...
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| Format: | Thesis |
| Language: | English English English |
| Published: |
2012
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| Subjects: | |
| Online Access: | http://eprints.uthm.edu.my/2272/1/24p%20LUQMAN%20HAKIM%20MAHMOD.pdf http://eprints.uthm.edu.my/2272/2/LUQMAN%20HAKIM%20MAHMOD%20COPYRIGHT%20DECLARATION.pdf http://eprints.uthm.edu.my/2272/3/LUQMAN%20HAKIM%20MAHMOD%20WATERMARK.pdf |
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| Summary: | This project presents a methodological approach, suggestions and
information in uprating the existing 275kV transmission overhead line by using
the re-conductoring approach. Overhead transmission line conductors were given
priority in information. Calculation regarding the maximum sag and maximum
current at maximum operating temperature were the core of this project as to
suggest a novel conductor available in the current market. The aim of this project
is to provide more current and less sag with the new conductor proposed in
comparison with the existing. In addition, the conductor will not in any way
infringe the minimum safety clearance. Smart Draw, Matlab and Excel were used
as a medium in the data analysis. Therefore, the apparent power of the overhead
transmission line when applied with the new conductor can be calculated as to
achieve the objective of this project. In Malaysia, ACSR Zebra is used as the
conductor for the 275 kV L3 tower. Thus, four other conductors were chosen in
order to make comparison between the maximum sag and current at maximum
operating temperature. These conductors are the 3M Drake, AAC Narcissus,
AAAC Greeley and ACCC 415 mm2 which have similar characteristics to the
ACSR Zebra in terms of weight, maximum rated strength ratio and size. By using
the calculations provided in this project, it is determined that the 3M Drake
conductor is better to the ACSR Zebra in comparison of the maximum sag and
the curent at maximum opertaing temperature. |
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