Study on surface electric field distribution of jumper in 220 kV tension tower

The function of jumper is to connect the tension clamps on both sides of the strain tower, so that the live wire can keep enough electrical distance from the conductive part of the tower. However, because of the complex structure of jumper, the surface electric field is easy to be distorted. It is of great significance for high voltage AC transmission lines to analyze and study the surface electric field distribution of jumpers and suppress corona discharge. In order to study the surface electric field distribution of jumpers, we used the finite element method and the 3D finite element analysis software ANSYS to model, simulated and calculated the surface electric field distribution of the 220 kV tension tower jumpers. We simulate and calculate the surface electric field distribution of 220 kV tension tower jumper, and compare and analyze the influence of split spacing, cross-sectional area, split number, single and double circuits and phase sequence on the surface electric field intensity of jumper.