Moderate

The square wave operation of 3 phase VSI lines contains the harmonics. The amplitudes are____________?

Correct answer: B. Inversely proportional to their harmonic order

  • A. Directly proportional to their harmonic order
  • B. Inversely proportional to their harmonic order
  • C. Not related to their harmonic order
  • D. None of these

Explanation

For a square wave, the magnitude of each present harmonic is proportional to 1 divided by its harmonic order, so higher-order harmonics have smaller amplitudes.

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