Solving of some Problems with On-Line Mode Measurement of Partial Discharges

• Main Author: Karel Zalis
• Format: Article
• Language: English
• Published: VSB-Technical University of Ostrava 2004-01-01
• Series: Advances in Electrical and Electronic Engineering
• Subjects: digital system; amplitude; neural network; hardware.
• Online Access: http://advances.utc.sk/index.php/AEEE/article/view/393

This paper deals with the problems discussing the transition from off-line diagnostic methods to on-line ones. Based on the experience with commercial partial discharge measuring equipment a new digital system for the evaluation of partial discharge measurement including software and hardware facilities has been developed at the Czech Technical University in Prague. Two expert systems work in this complex evaluating system: a rule-based expert system performing an amplitude analysis of partial discharge impulses for determining the damage of the insulation system, and a neural network which is used for a phase analysis of partial discharge impulses to determine the kind of partial discharge activity. Problem of the elimination of disturbances is also discussed.