ON-LINE PARTIAL DISCHARGE TESTING: INTRODUCTION TO DETECTION AND ANALYSIS OF ELECTROMAGNETIC AND ACOUSTIC PARTIAL DISCHARGE SIGNALS

摘要

It's no secret that insulation breakdown is responsible for the vast majority of electrical failures (see IEEE Gold Book Table 36). Partial discharge activity (PD) usually begins long before a complete insulation failure. PD testing enables discovery of insulation defects before they give rise to insulation failures and unplanned outages.