Practice EMF Equation of a Synchronous Generator (Alternator) - 1.3.5.3 | Module 4: DC and AC Electrical Machines | Basics of Electrical Engineering
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1.3.5.3 - EMF Equation of a Synchronous Generator (Alternator)

Learning

Practice Questions

Test your understanding with targeted questions related to the topic.

Question 1

Easy

What does EMF stand for?

💡 Hint: Think about what voltage means in physical terms.

Question 2

Easy

How is synchronous speed calculated?

💡 Hint: Remember the parameters involved in voltage generation.

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 does K_w represent in the EMF equation?

  • Winding factor
  • Magnetic flux
  • Frequency

💡 Hint: Think about how windings could impact the output voltage.

Question 2

True or False: Synchronous speed is independent of the frequency.

  • True
  • False

💡 Hint: Revisit the formula for synchronous speed.

Solve 1 more question and get performance evaluation

Challenge Problems

Push your limits with challenges.

Question 1

A synchronous generator operates at 50 Hz and must produce 900 V. If the winding factor is 0.9, how many turns per phase are necessary if the magnetic flux is 0.2 We?

💡 Hint: Don't forget to re-arrange the equation correctly to solve for turns.

Question 2

If the pole number of a synchronous generator changes from 4 to 6 while keeping the frequency constant at 60 Hz, what will be the new synchronous speed?

💡 Hint: You can solve the speed using the same formula; just adjust the pole count.

Challenge and get performance evaluation