Product Introduction: Transformer DC resistance measurement is a necessary item in transformer manufacturing of semi-finished products, finished products factory test, installation, handover test and power department preventive test, can effectively find transformer coil material selection, welding, connection part loose, missing, broken line and other manufacturing defects and hidden dangers after operation.Vs-3102s DC resistance tester is a quick test equipment for measuring dc resistance of transformers, transformers, generators and motors. It is the replacement of single and double arms bridge.