Calculation of sag changes caused by conductor beating with consideration of insulator string deviation in a transmission line section

Author

Polevoy, A.

Author_Institution

Israel Electr. Corp. Ltd., Haifa

Volume

13

Issue

4

fYear

1998

fDate

10/1/1998 12:00:00 AM

Firstpage

1238

Lastpage

1243

Abstract

Relationships for suspension insulator string displacement and sag changes caused by conductor heating due to overhead power transmission line uprating are derived. The formulae are obtained with the aid of linearization of the actual nonlinear “stress-elongation equation” and may be used both for computer program checking and for general analysis of the problem. A criterion for the correct application of the linear approach is presented and numerical examples demonstration are given. A number recommendations are given on the basis of the obtained linear relationships

Keywords

insulators; linearisation techniques; overhead line mechanical characteristics; power overhead lines; transmission network calculations; conductor heating; overhead power transmission line uprating; sag changes; stress-elongation equation linearisation; suspension insulator string displacement; Application software; Conductors; Difference equations; Differential algebraic equations; Differential equations; Heating; Insulation; Nonlinear equations; Performance analysis; Power transmission lines;

fLanguage

English

Journal_Title

Power Delivery, IEEE Transactions on

Publisher

ieee

ISSN

0885-8977

Type

jour

DOI

10.1109/61.714490

Filename

714490