The MI 3281 Winding Resistance Analyser (WR Analyser) is a portable test instrument intended for diagnosing of winding resistance of single and three phase transformers with manual or automatic tap changer test and demagnetization of tested transformer. Selectable test current in range from 10 mA to 20 A. The operation is straightforward and clear to enable the user to operate the instrument without the need for special training. For advanced users the AUTO SEQUENCES and visual tests are available.
 
• Winding resistance measurement of single and three phase transformers;
• Winding resistance measurement of single and three phase transformers with manual or automatic tap changer test (automatic measurement of all windings);
• Demagnetization of single and three phase transformers.