Practice - Three-Phase Balanced Circuits: Industrial Power
Practice Questions
Test your understanding with targeted questions
What is one advantage of three-phase systems over single-phase?
💡 Hint: Think about cost and efficiency.
What is the phase-shift between the voltages in a three-phase system?
💡 Hint: How many phases do we have in a three-phase system?
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Interactive Quizzes
Quick quizzes to reinforce your learning
What is the primary advantage of three-phase systems?
💡 Hint: Consider how power delivery affects motor operations.
True or False: In a Delta connection, line current is equal to phase current.
💡 Hint: Think about how the current flows in each configuration.
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Challenge Problems
Push your limits with advanced challenges
A balanced star-connected load draws 20 kW and has a power factor of 0.9. If the line voltage is 400 V, calculate the line current and verify the apparent power calculated.
💡 Hint: Remember the relation S = P / PF.
In a delta connection with a phase voltage of 230 V, the line current is 40 A. Determine the total real power delivered to the load and its apparent power.
💡 Hint: Convert phase measurements to line for calculations.
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Reference links
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