Obstacles to Measuring Power Transformer Winding Resistance

Charles Sweetser CAP Corner, Summer 2019 CAP Corner

DC winding resistance is a simple concept that relies on the fundamental application of Ohm’s Law. It is a powerful tool to determine continuity in power transformer winding circuits, specifically connections and tap changer contacts. However, performing a dc winding resistance test presents several technical difficulties that must be overcome: The power transformer’s magnetizing inductance must be removed through saturation …

OMICRON: Driven by Passion and Energy

NETA World Staff CAP Corner, Summer 2019 CAP Corner

NETA Corporate Alliance Partners (CAPs) are a group of industry-leading companies that have joined forces with NETA to work together toward a common aim: improving quality, safety, and electrical system reliability. In our CAP Spotlight series, we look at what makes CAPs special and highlight some of their successes. To kick off this issue, NETA World interviewed Wayne Bishop Jr., …