Research on Electric Field Optimization of 750kV Double-joint Strain Insulator String Fittings

摘要

Double-joint strain insulator fittings are the main equipment substations. It is great significance for reducing its maximum electric field strength to avoid corona noise and to improve substation electromagnetic environment. Firstly double-joint strain insulator string fittings simulation model is given by use of ansys 14.0, and the electric field is simulated and calculated according to the actual installation location of the related equipment. The construction for double-joint strain insulator string fittings is optimized to reduce the electric field value on basis of studying on the simulation significantly higher electric field points. The simulation results show increasing the number of equalizing shielding ring, for reducing the electric field strength of double-joint strain insulator string fittings, is more effective than increasing the diameter of equalizing shielding ring.