Transformer Turns Ratio Testing in the 21st Century

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For 3-phase transformers, sophisticated testers can now provide phase-by-phase connection instructions on their display. Internal shorting and lead compensation mean that connection requirements for short circuit impedance tests are the same as for all other tests, meaning just one ladder climb.

Taking full advantage of 21st century developments in microcircuitry, Transformer Turns Ratio Testers can now alleviate much of the physically taxing nature of 20th century turns ratio testing while virtually eliminating the common opportunities for operator error. Results are readily stored, reproduced and transferred, making a once potentially taxing and error-prone chore a streamlined and welcome addition to critical electrical maintenance.