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Fun, engaging games to boost memory, math fluency, typing speed, and English skills—perfect for learners of all ages.
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Knowledge
Practice Questions
Test your understanding with targeted questions related to the topic.
Question 1
Easy
What is a three-phase system?
💡 Hint: Think about how many phases are used.
Question 2
Easy
Define star connection.
💡 Hint: Consider the layout of the windings.
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
What is one major advantage of three-phase systems?
- Less conductor material required
- More complex wiring
- Higher power losses
💡 Hint: Think about efficiency in power transmission.
Question 2
True or False: In a delta connection, the line voltage equals the phase voltage.
- True
- False
💡 Hint: Recall the definitions of delta connections.
Solve 1 more question and get performance evaluation
Challenge Problems
Push your limits with challenges.
Question 1
A balanced three-phase system with a line voltage of 400 V and a line current of 30 A draws a power factor of 0.9 leading. Calculate the total real power, total reactive power, and verify the total apparent power.
💡 Hint: Use the power triangle to find the relationships.
Question 2
Design a three-phase system for an industrial facility needing 120 kW at a power factor of 0.85. What are the required line currents if using a phase voltage of 230 V?
💡 Hint: Make sure to assess total power against the capacity of the phase.
Challenge and get performance evaluation