Title: Sensitivity Analysis on Influence Factors of Induced Voltage and Current of 220 kV Double-Circuit Transmission Lines on the Same Tower
Abstract: Due to the electromagnetic induction and electrostatic coupling effect, when outage occurs in one of the 220 kV double circuits on the same tower, induced current and voltage will be generated in another circuit. Based on EMTP/EMTPE electromagnetic transient simulation platform, this paper carried out sensitivity analysis for those main factors of double circuits on the same tower, including arrangement form of circuits on the tower, length of double circuits on the same tower, transmission power and voltage of the running line, which impacted on the induced current and voltage, and the key sensitive factors and sensitivity degree were extracted. By excavating the basic law of induced voltage and current of 220 kV double-circuit transmission lines on the same tower, this paper puts forward the valuable proposal guiding the selection of 220 kV line earthing switches to improve the efficiency and accuracy of selection of earthing switches, which provides technical reference for 220 kV transmission line maintenance.
Publication Year: 2019
Publication Date: 2019-01-01
Language: en
Type: article
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