Comparative Analysis of Raw Material Performance of Corrugated Pipe Compensator Products for GIL
In the operation of the power grid,the traditional transmission methods mainly include overhead lines and power cables.However,under the long-term operation and harsh weather environment,these transmission methods will have problems such as insulation damage or aging,which will affect the safety and stability of the power grid.The emergence of GIL has made up for this deficiency to a certain extent,but the use of the whole GIL will cause safety problems due to the influence of the performance of the raw materials of the bellows compensator.Based on this,three groups of similar bellows compensator products were selected in this paper,and different standard stainless steel raw materials were used for performance testing.Among them,two raw materials follow the American standard standard,and one follows the national standard standard.The results were analyzed and evaluated by spectroscopic analysis of the chemical composition of the raw materials and intergranular corrosion tests to investigate the influence of the performance of the raw materials on the failure of the bellows compensator for GIL.
GILbellows compensatorraw material performanceexperimentcomparative analysis