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Practice Questions
Test your understanding with targeted questions related to the topic.
Question 1
Easy
What is the relationship between line voltage and phase voltage in a star connection?
💡 Hint: Remember it's a square root of three relation.
Question 2
Easy
In a balanced delta connection, what is the relationship between phase current and line current?
💡 Hint: Think about how the phases are interconnected.
Practice 4 more questions and get performance evaluation
Interactive Quizzes
Engage in quick quizzes to reinforce what you've learned and check your comprehension.
Question 1
In a balanced three-phase star connection, the line current is equal to:
- A) 3 times the phase current
- B) Equal to the phase current
- C) √3 times the phase current
💡 Hint: Think about the structure of a star connection.
Question 2
True or False: In a delta connection, the line voltage is equal to the phase voltage.
- True
- False
💡 Hint: Visualize a delta connection.
Solve and get performance evaluation
Challenge Problems
Push your limits with challenges.
Question 1
A balanced star-connected load has a phase voltage of 230 V and a power factor of 0.8. If the load draws a phase current of 10 A, calculate the total real power consumed.
💡 Hint: Use the total power formula for balanced three-phase systems.
Question 2
In a three-phase delta circuit with a line voltage of 400 V and a line current of 50 A, find the reactive power if the power factor is 0.5.
💡 Hint: First, determine the apparent power using the line quantities.
Challenge and get performance evaluation