Practice - Numerical Example 7.1 (Star Connection)
Practice Questions
Test your understanding with targeted questions
What is the relationship between phase current and line current in a star connection?
💡 Hint: Think specifically about how current flows in a star configuration.
If the phase voltage is 400 V, what is the line voltage?
💡 Hint: Use the relationship we discussed.
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Interactive Quizzes
Quick quizzes to reinforce your learning
What is the formula for calculating line voltage in a star connection?
💡 Hint: Remember how these two voltages relate in three-phase systems.
In a star connection, what is the relationship between line current and phase current?
💡 Hint: This relationship is fundamental to understanding current flow.
1 more question available
Challenge Problems
Push your limits with advanced challenges
A star-connected load has a phase current of 20 A and a phase voltage of 400 V. Compute the line voltage, line current, total power in the system considering the power factor is 0.9.
💡 Hint: Use the relationship between line and phase parameters to find total power.
If the line voltage of a balanced star-connected system is 480 V and the line current is 30 A, what is the phase voltage, the phase current, and the total real power if the power factor is 0.95?
💡 Hint: Calculate phase voltage first using the inverse of the line voltage relationship.
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Reference links
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