Flexible Strain-Tension Calculation Method for Gap-Type Overhead Conductors

Commercially available sag-tension programs give good results for most practical applications. However, they have some limitations concerning gap-type conductors. A separate aluminum and core creep calculation is needed due to the special structure of gap-type conductors. For the same reason, differ...

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Bibliographic Details
Published in:IEEE transactions on power delivery 2009-07, Vol.24 (3), p.1529-1537
Main Authors: Albizu, I., Mazon, A.J., Zamora, I.
Format: Article
Language:English
Subjects:
Aluminum
Applied sciences
Capacitive sensors
Computer programs
Conductors
Creep
Creep (materials)
Electrical engineering. Electrical power engineering
Electrical power engineering
Exact sciences and technology
Flexibility
gap-type conductor
Geometry
Mathematical analysis
overhead conductor
Overhead networks
Power networks and lines
sag tension
Security
Software tools
Strain
Temperature
Thermal expansion
Thermal stresses
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Description
Summary:Commercially available sag-tension programs give good results for most practical applications. However, they have some limitations concerning gap-type conductors. A separate aluminum and core creep calculation is needed due to the special structure of gap-type conductors. For the same reason, different core and aluminum lengths have to be considered. In order to take the creep during the installation process into account, flexibility for the consideration of several stages is needed. A method that considers all of these characteristics has been developed and implemented in a comprehensive, versatile, and flexible sag-tension software tool, called Strain Tension in Overhead Conductors. The program has been designed for the analysis of gap-type conductors. However, the method is a general method that can be used for any type of conductor, especially when flexibility for the calculation of several creep conditions is needed.
ISSN:0885-8977
1937-4208
DOI:10.1109/TPWRD.2009.2016631