UHF partial discharge detection system for GIS: Application guide for sensitivity verification: CIGRE WG D1.25

The paper, prepared by CIGRE WG D1.25, presents the experience in practical application of sensitivity verification of the UHF partial discharge detection system for GIS after its introduction by ELECTRA Report in 1999. A detailed description of the two-step procedure, Step 1 in laboratory and Step 2 on-site, is given and supported by examples. Guidelines will help manufacturers and users in the effective application of the UHF method for PD detection on GIS and will permit to avoid technical misinterpretations. The procedure is described in details in CIGRE Technical Brochure.