Evaluating opportunities for increasing power capacity of existing overhead line systems
| Autor: | Simon M. Rowland, Konstantinos Kopsidas |
|---|---|
| Rok vydání: | 2011 |
| Předmět: |
Engineering
AAAC ACSR ampacity composite conductors conductor creep high temperature overhead line re-conductoring re-tensioning sag business.industry Energy Engineering and Power Technology Line (electrical engineering) Conductor Reliability engineering Identification (information) Control and Systems Engineering overhead line conductors overhead line mechanical characteristics power overhead lines Electronic engineering Overhead (computing) Ampacity Electrical and Electronic Engineering business Electrical conductor Overhead line conductor ampacity overhead line systems power capacity sag thermal uprating voltage 33 kV voltage uprating Voltage |
| Zdroj: | Kopsidas, K & Rowland, S M 2011, ' Evaluating opportunities for increasing power capacity of existing overhead line systems ', IET Generation, Transmission and Distribution, vol. 5, no. 1, pp. 1-10 . https://doi.org/10.1049/iet-gtd.2010.0227 |
| DOI: | 10.1049/iet-gtd.2010.0227 |
| Popis: | Re-tensioning and/or re-conductoring are considered the most popular cost-effective ways to increase the efficiency of power capacity of an existing aerial line. The identification of the most beneficial method requires ampacity and sag calculations to consider all the system factors that influence its performance. A holistic methodology for calculating conductor ampacity and sag at any temperature and power frequency when different conductors are implemented onto a pre-specified overhead line structure is used to illustrate how the properties of the conductors allow opportunities for thermal and voltage uprating on existing overhead line systems. This is achieved through a comparative analysis of the electrical and mechanical behaviour of conductors of different technologies and sizes on a 33 kV wood pole system. The analysis focuses on normal operating temperatures for novel conductors that can operate at elevated temperatures to avoid the increase in losses, and also allow the comparison with conventional conductors in order to identify potential benefits for the investigated overhead lines (OHL) system. © 2011 The Institution of Engineering and Technology. |
| Databáze: | OpenAIRE |
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