Partial Discharge (PD) , as defined by IEC 60270 ,is an electrical discharge that does not completely bridge the space between two conducting electrodes. The discharge may be in a gas filled void in a solid insulating material, in a gas bubble in a liquid insulator, or around an electrode in a gas. When partial discharge occurs in a gas, it is usually known as corona.

UltraScan EC4000P – New Product release
This new product ‘Ultrascan’ to incorporate Several types of partial discharge sensor technology. These include a digital TEV display, an external AA, UHF Patch type GIS Sensor, split-core HFCT ,Acoustic Emission Sensor ,Parabolic Dish acoustic AA, and a range of airborne acoustic probes AA.

You can download the print version of the current Brochures with their original layout (PDF documents) here. Official Brochures including technical data of FOCUS PD products and ETC Equipments.