Presented by: intellirent, Featuring Drew Welton, Vice President of Business & Technical Development

 

NETA LIVE Webinar | Thursday, October 09th at 2:00 PM ET

Part two of a three-part NETA Live Webinar Series focused on improved diagnostic testing to ensure the reliable, safe operation, and life extension of Power Transformers.

Webinar: Avoiding Premature Insulation Failure of Oil-Filled Transformers by Proper Moisture Management

One of the more common causes of mechanical failure in power transformers comes from exposure to through faults. Most of today’s transformer protective relay systems provide comprehensive monitoring of these potentially damaging events but are rarely activated. In this paper we will define the characteristics of a through-fault, investigate various proper settings for a through-fault monitor, and present an actual case study of a severely damaged transformer exposed to this condition. We will also see examples of detecting mechanical failure in the transformer as it relates to a through-fault condition. In addition, we will have a brief discussion on Frequency Response of Stray Losses as an additional test that can be performed alongside Leakage Reactance.