Search for capacitive type electrical defaults (Corona effect, electrical path, arcing, partial discharge…) on middle and high voltage installations HTA & HTB (U > 1000 V) APPLICATION NOTE N° 3 – JUILLET 2013 Quartier Plessier- 39 av du 8 Rgt des Hussards – 68132 ALTKIRCH (France) Contact : [email protected] ou au +00.33 (0)3.89.08.

What are the problems with capacitive electrical defaults on medium and high voltage lines ? Capacitive electrical defaults (who generate ultrasonic waves) on middle and high voltage installation create problems on connections, cables, insulators, disruptors…and are problem sources of: - Safety of people and property (fire, explosion, mechanical piece breakdown , corrosion, …) Noise, audible parasite noise Electromagnetic interference by conduction or by air transmission (radio interference) Chemical pollutions (CORONA creates Ozone, NH4, NO3…) Capacitive electrical default search solution :...

Example with a 63.000 V installation : Bad mechanical and ground connection under 63.000 V, electrical arcing is easily detected with the LEAKSHOOTER LKS1000 at 3 m distance thanks to it automatic/dynamic target and with the headphones which with we can hear arcing characteristic sound. APPLICATION NOTE N° 3 – JUILLET 2013 Quartier Plessier- 39 av du 8 Rgt des Hussards – 68132 ALTKIRCH (France) Contact : [email protected] ou au +00.33 (0)3.89.08.32