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The standard secondary voltage of a potential transformer is

  • A.1 V
  • B.the same for every system voltage
  • C.110 V
  • D.230 V

Answer: C

As with the current transformer, a standard secondary lets any voltmeter, wattmeter or relay be used with any transformer. A hundred and ten volts is high enough for a good signal and low enough to be handled safely on a panel.

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