Title :
Metal inserted spacer influence on particle motion in nonuniform electrical field under DC voltage
Author :
Jia, J. ; Zhang, Q. ; Zhu, J. ; Yang, L.
Author_Institution :
Sch. of Electr. Eng., Xi´´an Jiaotong Univ., China
Abstract :
In gas insulated systems (GIS), particles near spacer in GIS tend to cause apparatus faults by leading flashover breakdown along spacer surface. Metal inserted spacer as a method is designed in purpose to prevent particles from lifting and adhering to spacer. The effect of electrode inserted is investigated by calculation of electrostatic force acting on spherical particles in 2-dimension model through finite element method (FEM). Three type spacers with different shapes are studied and the results show that metal inserted spacer is effective in hurtless treatment of particles in DC GIS.
Keywords :
electric breakdown; electrostatics; fault diagnosis; finite element analysis; flashover; gaseous insulation; insulation testing; power apparatus; FEM; GIS; electrostatic force calculation; finite element method; flashover breakdown; gas insulated system; metal inserted spacer; nonuniform electrical field; particle motion; power apparatus fault; spacer surface; Design methodology; Electric breakdown; Electrodes; Electrostatics; Finite element methods; Flashover; Gas insulation; Geographic Information Systems; Shape; Voltage;
Conference_Titel :
Electrical Insulating Materials, 2005. (ISEIM 2005). Proceedings of 2005 International Symposium on
Print_ISBN :
4-88686-063-X
DOI :
10.1109/ISEIM.2005.193565
