Powered by replaceable AA batteries, TTR20 battery-operated TTR (transformer turns ratio) tester measures turns ratio, polarity, and excitation current in single- and 3-phase transformers, current and potential transformers, as well as voltage regulators. This utility tool, featuring pushbutton operation, tests at 55 Hz and offers better than 0.5% repeatability. Leads are available in 4 lengths, and users can perform tests in <5 sec after hook up to transformer.<br />
This story is related to the following:Transformer Testers