Uploaded June 2022 | Updated September 2026, 2 weeks ago

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This video will walk you through how to determine the polarity of each of the windings on our Hammond Three-Phase Transformer Trainers using the Buck/Boost or Additive/Subtractive tests on each of the Single-Phase Transformers.

This test is crucial to make sure that we don't blow the breaker when connecting the three Single-Phase transformers into a Three-Phase Wye or Delta configuration.