True or False: Transformer polarity is indicated on the name plate.

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Multiple Choice

True or False: Transformer polarity is indicated on the name plate.

Explanation:
Polarity defines which end of a winding is positive relative to the other when the winding is energized. On a transformer nameplate you’ll typically find polarity information so the installer knows how the primary and secondary windings relate in phase. This is crucial when connecting windings in series or to rectifiers, because getting the polarity wrong can cause voltages to oppose each other or create damaging conditions. The nameplate may show polarity with dot conventions, a polarity diagram, or a vector group designation for three-phase units, all aimed at ensuring correct phasing during installation.

Polarity defines which end of a winding is positive relative to the other when the winding is energized. On a transformer nameplate you’ll typically find polarity information so the installer knows how the primary and secondary windings relate in phase. This is crucial when connecting windings in series or to rectifiers, because getting the polarity wrong can cause voltages to oppose each other or create damaging conditions. The nameplate may show polarity with dot conventions, a polarity diagram, or a vector group designation for three-phase units, all aimed at ensuring correct phasing during installation.

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