Full Text Available
Note: Clicking the button above will open the full text document at the original institutional repository in a new window.
Improving Buffalo City's sub-transmission reliability
Several experiences of sudden large scale disruptions in electrical service deeply impacted both social stability and economic development in affected communities and caused lower levels of reliability performance. The prevention of such catastrophic incidents poses huge challenges for reliability s...
Saved in:
| Main Author: | |
|---|---|
| Other Authors: | |
| Format: | Thesis |
| Language: | English |
| Published: |
Department of Electrical Engineering
2017
|
| Subjects: | |
| Tags: |
No Tags, Be the first to tag this record!
|
| _version_ | 1867613222305005568 |
|---|---|
| access_status_str | Open Access |
| author | Bentil, Joseph Kingsley Attom |
| author2 | Gaunt, C Trevor |
| author_browse | Bentil, Joseph Kingsley Attom Gaunt, C Trevor |
| author_facet | Gaunt, C Trevor Bentil, Joseph Kingsley Attom |
| author_sort | Bentil, Joseph Kingsley Attom |
| collection | Thesis |
| description | Several experiences of sudden large scale disruptions in electrical service deeply impacted both social stability and economic development in affected communities and caused lower levels of reliability performance. The prevention of such catastrophic incidents poses huge challenges for reliability study and operational practices in Buffalo City's sub-transmission network. Primarily investigations on the field shows, aging infrastructure, relay failures and reactive maintenance practice is eminent. Inspired by these challenges, this dissertation proposes an analysis of the critical transition in sub-transmission network from a lower level of reliability to an economically and acceptable level of reliability. The transition of the operational "stress" and its large scale of power interruptions are studied. The transition of the existing sub-transmission to the alternative sub-transmission models has been presented. The analysis of load flow and fault level calculations identifies the loading trends critical to cause operational "pressure" of unplanned interruptions. The results in this research work had to discover the most appropriate resolutions to aging equipment, reactive maintenance and protection systems. The DIgSILENT Power Factory simulates and quantifies the results of the problems that could occur in the sub-transmission network in the immediate future. Measures to mitigate any occurrence which might cause more prone to a catastrophic blackout are presented. The proposed corrective measures of upkeep aging infrastructure, relay responsiveness and planned preventative maintenance have been recommended. The development of these corrective measures and the proposed network model is the key to reaching higher levels of reliability performance in the energy supply that communities require in Buffalo City Metropolitan Municipality. |
| format | Thesis |
| id | oai:open.uct.ac.za:11427/23388 |
| institution | University of Cape Town (South Africa) |
| language | eng |
| last_indexed | 2026-06-10T12:32:42.829Z |
| license_str | Not specified — see source repository |
| provenance_str_mv | Harvested via OAI-PMH from UCTD — University of Cape Town Open Access Repository |
| publishDate | 2017 |
| publishDateRange | 2017 |
| publishDateSort | 2017 |
| publisher | Department of Electrical Engineering |
| publisherStr | Department of Electrical Engineering |
| record_format | dspace |
| source_str | UCTD — University of Cape Town Open Access Repository |
| spelling | oai:open.uct.ac.za:11427/23388 Improving Buffalo City's sub-transmission reliability Bentil, Joseph Kingsley Attom Gaunt, C Trevor Electrical Engineering Several experiences of sudden large scale disruptions in electrical service deeply impacted both social stability and economic development in affected communities and caused lower levels of reliability performance. The prevention of such catastrophic incidents poses huge challenges for reliability study and operational practices in Buffalo City's sub-transmission network. Primarily investigations on the field shows, aging infrastructure, relay failures and reactive maintenance practice is eminent. Inspired by these challenges, this dissertation proposes an analysis of the critical transition in sub-transmission network from a lower level of reliability to an economically and acceptable level of reliability. The transition of the operational "stress" and its large scale of power interruptions are studied. The transition of the existing sub-transmission to the alternative sub-transmission models has been presented. The analysis of load flow and fault level calculations identifies the loading trends critical to cause operational "pressure" of unplanned interruptions. The results in this research work had to discover the most appropriate resolutions to aging equipment, reactive maintenance and protection systems. The DIgSILENT Power Factory simulates and quantifies the results of the problems that could occur in the sub-transmission network in the immediate future. Measures to mitigate any occurrence which might cause more prone to a catastrophic blackout are presented. The proposed corrective measures of upkeep aging infrastructure, relay responsiveness and planned preventative maintenance have been recommended. The development of these corrective measures and the proposed network model is the key to reaching higher levels of reliability performance in the energy supply that communities require in Buffalo City Metropolitan Municipality. 2017-01-26T13:31:23Z 2017-01-26T13:31:23Z 2016 Master Thesis Masters MSc (Eng) http://hdl.handle.net/11427/23388 eng application/pdf Department of Electrical Engineering Faculty of Engineering and the Built Environment University of Cape Town |
| spellingShingle | Electrical Engineering Bentil, Joseph Kingsley Attom Improving Buffalo City's sub-transmission reliability |
| thesis_degree_str | Master's |
| title | Improving Buffalo City's sub-transmission reliability |
| title_full | Improving Buffalo City's sub-transmission reliability |
| title_fullStr | Improving Buffalo City's sub-transmission reliability |
| title_full_unstemmed | Improving Buffalo City's sub-transmission reliability |
| title_short | Improving Buffalo City's sub-transmission reliability |
| title_sort | improving buffalo city s sub transmission reliability |
| topic | Electrical Engineering |
| url | http://hdl.handle.net/11427/23388 |
| work_keys_str_mv | AT bentiljosephkingsleyattom improvingbuffalocityssubtransmissionreliability |