Electrician Red Seal · Question
An electrician is measuring the power factor of a running motor using a power analyzer. The analyzer displays 60 kW (real power) and 80 kVA (apparent power). What is the power factor of the motor?
Power factor (PF) is calculated as the ratio of real power (kW) to apparent power (kVA). PF = P / S = 60 kW / 80 kVA = 0.75. Since a motor is an inductive load,
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Question: An electrician is measuring the power factor of a running motor using a power analyzer. The analyzer displays 60 kW (real power) and 80 kVA (apparent power). What is the power factor of the motor?
Answer options:
- 0.6 lagging ✅ 0.75 lagging
- 0.8 lagging
- 1.33 leading
Correct answer: 0.75 lagging
Explanation: Power factor (PF) is calculated as the ratio of real power (kW) to apparent power (kVA). PF = P / S = 60 kW / 80 kVA = 0.75. Since a motor is an inductive load, the power factor will be lagging.
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