Title :
Movement simulation of long electric arc along the surface of insulator string in free air
Author :
Gu, Shanqiang ; He, Jinliang ; Zhang, Bo ; Xu, Guozheng ; Han, Shejiao
Author_Institution :
Dept. of Electr. Eng., Tsinghua Univ., Beijing
fDate :
4/1/2006 12:00:00 AM
Abstract :
This paper presents the study of a long electric arc in free air due to lightning stroke on the parallel gap lightning protection device (PGLPD) on high-voltage overhead transmission lines. Based on the latest electric arc model, the analysis method of the magnetic field generated by the current flowing through the PGLPD, electric arc, transmission lines, steel tower, and ground wires is developed, and the movement process of the long arc along the surface of the insulator strings is simulated. The simulation results are in agreement with the experimental results. The study is very helpful for the optimal design and suitable assemblage of the PGLPD
Keywords :
arcs (electric); high-voltage techniques; lightning protection; magnetic fields; power overhead lines; electric arc model; free air; high-voltage overhead transmission lines; insulator string surface; lightning stroke; long electric arc; magnetic field analysis; movement simulation; parallel gap lightning protection device; Cable insulation; Dielectrics and electrical insulation; Lightning protection; Magnetic analysis; Magnetic fields; Poles and towers; Power transmission lines; Steel; Transmission lines; Wires; Long electric arc; movement simulation; parallel gap lightning protection device (PGLPD);
Journal_Title :
Magnetics, IEEE Transactions on
DOI :
10.1109/TMAG.2006.871424
