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MCQ Practice Question
Measurements & InstrumentationInstrument Transformers

A current transformer is primarily used to?

  • AScale large AC current to a smaller measurable current
  • BIncrease DC voltage
  • CMeasure temperature
  • DGenerate radio frequency
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Correct Answer: A. Scale large AC current to a smaller measurable current
Explanation: A CT reproduces a scaled version of primary AC current for metering and protection.
Reference: Standard measurements and instrumentation: instrument transformers
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