Winding Deformation Tester (Winding Deformation Tester) is a precision instrument specifically designed to detect mechanical deformation of power transformer windings.
During transportation, installation, or operation, if a transformer is subjected to short-circuit current surges or physical impacts, its internal windings may suffer from invisible mechanical deformations such as distortion, bulging, or displacement. Such deformations can seriously threaten the safe operation of the transformer. The Winding Deformation Tester uses Frequency Response Analysis (FRA) to accurately assess the internal health of the transformer without lifting the cover or disassembling it, much like performing a "CT scan" on the transformer.
Combined with the latest technical standards and market products in 2026, I have compiled the core principles, functional features, and operational points of this instrument:
