Advanced Problems on Measurement of Power in Polyphase Circuit MCQ

Test your knowledge with important Advanced Problems on Measurement of Power in Polyphase Circuit MCQ and their applications. These MCQs are beneficial for competitive exams too. Explore 30 + more Advanced Problems on Measurement of Power in Polyphase Circuit MCQs at Bissoy

• The two-wattmeter method is used to measure active power. The system is a 3-phase, 3- wire system. Then, the power reading is?
  ক

  Affected by both negative sequence and zero sequence voltages

  খ

  Affected by negative sequence voltages but not by zero sequence voltages

  গ

  Affected by zero sequence voltages but not by negative sequence voltages

  ঘ

  Not affected by negative or zero sequence voltages
• In the Two wattmeter method of measuring power in a balanced three-phase circuit, one wattmeter shows zero and the other positive maximum. The load power factor is?
  ক

  0

  খ

  0.5

  গ

  0.866

  ঘ

  1.0