Partial discharge measurements: becoming a fundamental tool for quality control and risk assessment of electrical systems?

Abstract

This paper will introduce innovative technologies for partial discharge (PD) measurements, trying to answer to the common question that is associated with PD detection, that is, its effectiveness regarding fundamental items for asset management as risk assessment and maintenance planning. To this aim, the application of PD diagnosis to various electrical apparatus, specifically cables, generators and transformers, is discussed, emphasizing important features for PD detection and diagnosis such as noise cancellation, PD phenomena separation and identification, and PD source location