Title :
Calculation of sag changes caused by conductor beating with consideration of insulator string deviation in a transmission line section
Author_Institution :
Israel Electr. Corp. Ltd., Haifa
fDate :
10/1/1998 12:00:00 AM
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;
Journal_Title :
Power Delivery, IEEE Transactions on
