At 23:00 on October 28th, the DC De-Icer provided by C-EPRI in Luquan Station of 500kV Yunnan-Guizhou Interconnection channel passed the system test of high-current rising and flowing up to 4500A and was officially put into operation.

The 12-pulse bridge DC De-Icer has outstanding performance on system adaptability and equipment reliability. It greatly enhances the extreme cold weather resistance of Yunan-Guizhou Interconnection.