Study of Lightning Performance of 400 kV Transmission Line Interconnecting Poland and Lithuania (LitPol) in Years 2016 - 2017

摘要

In the paper are described main features of lightning performance of 400 kV transmission line located in north-east part Poland and south-west Lithuania named LitPol Link. This line is a part of Baltic Ring - EU power grid project interconnecting transmission lines in seven countries surrounding the Baltic Sea. Some features of the line have special influence on lightning hazard mainly due to height of towers which vary from 40 to 97 m. The lightning activity in the region is based on the lightning location system LINET data. Recorded lightning CG discharges were correlated with individual outages of LitPol Link recorded by Polish operator of the line in years 2016-17. Exemplary outages were described in detail and some conclusions are presented.