A computer program to perform dynamic thermal analysis for bare overhead conductors during short-time overload conditions
- ELCON Associates, Inc., Portland, OR (United States)
Under emergency conditions, a bare overhead conductor can carry an increased amount of current that is well in excess of its normal rating. When there is this increase in current flow on a bare overhead conductor, the temperature does not rise instantaneously. but increases along a curve determined by the current, the conductor properties and the ambient conditions. The conductor temperature at the end of a short-time overload period must be restricted to its maximum design value. This paper presents a simplified approach in analyzing the dynamic performance for bare overhead conductors during short-time overload condition. A computer program was developed to calculate the short-time ratings for bare overhead conductors. The following parameters: current induced heating. solar load, convective/conductive cooling, radiative cooling, altitude, wind velocity and ampacity of the bare conductor were considered. Several sample graphical output lots are included with the paper.
- OSTI ID:
- 269844
- Report Number(s):
- CONF-951050-; TRN: 96:002072-0018
- Resource Relation:
- Conference: Conference of the Institute of Electrical and Electronics Engineers, Inc., Portland, OR (United States), 10-12 Oct 1995; Other Information: PBD: 1995; Related Information: Is Part Of IEEE technical applications conference and workshops - Northcon/95; PB: 430 p.
- Country of Publication:
- United States
- Language:
- English
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