PD measurements in N{sub}2-SF{sub}6 gas mixtures with the UHF method

摘要

The construction of overhead lines for power transmission in densely populated urban areas is sometimes extremely difficult or impossible because of several reasons mainly the lack of space. Alternatives to overhead lines are conventional cablesor gas insulated transmission lines (GIL) [1]. For certain applications the technical advantages of GIL over cables like higher power transmission capacity and some properties of the gaseous insulation result in lower life cycle costs despite a higherinvestment.