NETA Corporate Alliance Partners (CAPs) are industry-leading companies that have joined forces with NETA to work together toward a common aim: improving quality, safety, and electrical system reliability. In this continuing series highlighting NETA’s CAPs, the 2026 NETA World Corporate Alliance Corner will feature articles authored by leaders of NETA’s CAPs. Each article will provide a “View from the Bridge,” …
Advancements in Industry: Using SFRA to Identify a Winding with a Shorted Turn
The sweep frequency response analysis (SFRA) test is a powerful and sensitive method for assessing the mechanical and electrical integrity of a transformer core/coil assembly. SFRA includes two tests: an open test and a short-circuit test. Both test a complex network of inductances, capacitances, and resistors, and frequently successfully detect the presence of an electrical failure, including a shorted turn. …

