Practice Power Factor Improvement: Enhancing System Efficiency (5.2) - Electrical Installations, Safety, and Energy Management
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Power Factor Improvement: Enhancing System Efficiency

Practice - Power Factor Improvement: Enhancing System Efficiency

Learning

Practice Questions

Test your understanding with targeted questions

Question 1 Easy

Define power factor.

💡 Hint: Consider how much power is actually used versus the total power.

Question 2 Easy

What unit is reactive power measured in?

💡 Hint: Think about the role of reactive power in electrical systems.

4 more questions available

Interactive Quizzes

Quick quizzes to reinforce your learning

Question 1

What is the power factor?

P/S
S/P
P+S

💡 Hint: Think about what power factor indicates regarding efficiency.

Question 2

True or False: A higher power factor generally indicates better energy efficiency.

True
False

💡 Hint: Recall the impact on utility costs when power factor is low.

1 more question available

Challenge Problems

Push your limits with advanced challenges

Challenge 1 Hard

A processing plant has a total connected load of 800 kW at a power factor of 0.6. The utility company requires a power factor of at least 0.9. Calculate the necessary kVAR to be added with capacitor banks.

💡 Hint: Remember to calculate the initial and target Q values and find their difference.

Challenge 2 Hard

For a load requiring 100 kVAR at 415 volts in a three-phase circuit, calculate the necessary capacitance in μF.

💡 Hint: Use the appropriate conversion for reactive power in capacitive circuits.

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Reference links

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