Power factor and three-phaseQuestion 344 of 1506

What can a failed power factor correction capacitor cause?

  1. System inefficiency and higher utility bills
  2. Lower torque on the motor shaft only
  3. An increase in the system power factor
  4. A lower line voltage on every circuit
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Correct answer: System inefficiency and higher utility bills

The correction is lost, so the system is less efficient.

Source: Troubleshooting Motors and Controls (Dickson-Self), 6.1: Testing Motor Components

Practice power factor and three-phase

Questions last reviewed: 18 October 2026