The Internationally First Set of ±660kV DC Line Arresters are Synchronized Successfully

Nov 28,2016

On November 26, 2016, the internationally first set of ±660kV DC transmission line arresters independently innovatedby NARI were successfully synchronized at Shandong section of Yinchuan-Shandong tranmission line, which realizes the first application of DC transmission line arresters in the transmission line of this voltage class and fills in the technical gap in the field of lightning protection of ±660kV HVDC power transmission lines.

±660kV Yinchuan-Shandong DC transmission line is the major west-east power transmission project of SGCC. The line starts at Yinchuan, Ningxia in the west and terminates at Shandong Province in the east. The line is 1333km long in total and its rated transmission capacity is 4×106MW.NARI provides the lightning protection technology for the ±660kV DC transmission line in China.