 |
This article does not cite any references or sources. Please help improve this article by adding citations to reliable sources. Unsourced material may be challenged and removed. (April 2009) |
In power engineering, a bundle conductor is a number of conductors in parallel.
Bundle conductors are used to increase the amount of current that may be carried in a line. Due to the skin effect, ampacity of conductors is not proportional to cross section, for the larger sizes. Therefore, bundle conductors may carry more current for a given weight.
More important, the bundle conductors result in lower reactance, compared to a single conductor.It reduces corona loss at EHV (extra high voltage) and particularly its interference with communication system.It also reduces voltage gradient in that range of voltage.
As a disadvantage, the bundle conductors have higher wind loading.
Previously, bundle conductors were thought to be useful only for very high voltage, such as 500 kV. More recently, the advantage has been proven, and they are more common, for 230 kV and 115 kV.
This entry is from Wikipedia, the leading user-contributed encyclopedia. It may not have been reviewed by professional editors (see full disclaimer)
