The secondary side of a 480/277 volt to 208/120 volt transformer feeds a panelboard. The readings show varying phase-to-ground voltages and phase-to-neutral voltages around 120 V, with Neutral to Ground at 54 volts. Is the transformer operating normally? If not, what is a possible reason why?

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Multiple Choice

The secondary side of a 480/277 volt to 208/120 volt transformer feeds a panelboard. The readings show varying phase-to-ground voltages and phase-to-neutral voltages around 120 V, with Neutral to Ground at 54 volts. Is the transformer operating normally? If not, what is a possible reason why?

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