Electrical Engineering (EE) Exam  >  Electrical Engineering (EE) Questions  >  A single phase semiconverter is feeding a hig... Start Learning for Free
A single phase semiconverter is feeding a highly inductive load and has freewheeling diode across the load. The waveshapes of output voltage and output current
  • a)
    are similar
  • b)
    are not similar
  • c)
    may be similar or dissimilar
  • d)
    are similar only if firing angle is zero
Correct answer is option 'B'. Can you explain this answer?
Verified Answer
A single phase semiconverter is feeding a highly inductive load and ha...
When freewheeling diode conducts output current exists but output voltage is zero.
View all questions of this test
Most Upvoted Answer
A single phase semiconverter is feeding a highly inductive load and ha...
Explanation:
A single phase semiconverter is a rectifier circuit that converts AC voltage into DC voltage. The output voltage waveform of a single phase semiconverter depends on the firing angle of the thyristor. The output current waveform is determined by the load impedance and the output voltage waveform.

Similarity of output voltage and current waveform:

When the load is purely resistive, the output voltage and current waveforms are similar. This is because the current waveform is proportional to the voltage waveform. However, when the load is highly inductive, the current waveform lags behind the voltage waveform. This is due to the inductive nature of the load, which causes a delay in the current response to the applied voltage.

Effect of freewheeling diode:

A freewheeling diode is connected across the load in a single phase semiconverter to provide a path for the inductive current when the thyristor is turned off. This prevents a voltage spike across the load and protects the thyristor from damage. However, the freewheeling diode also affects the output voltage and current waveforms.

Dissimilarity of output voltage and current waveform:

The presence of the freewheeling diode causes a discontinuity in the output voltage waveform. This is because the diode conducts when the thyristor is turned off, causing a sudden drop in the output voltage. The output current waveform, on the other hand, continues to flow through the load due to the inductive nature of the load. This causes a dissimilarity between the output voltage and current waveforms.

Conclusion:

Therefore, the waveshapes of output voltage and output current in a single phase semiconverter feeding a highly inductive load with a freewheeling diode across the load are not similar. The output voltage waveform exhibits a discontinuity due to the presence of the freewheeling diode, while the output current waveform continues to flow through the load due to the inductive nature of the load.
Explore Courses for Electrical Engineering (EE) exam

Top Courses for Electrical Engineering (EE)

A single phase semiconverter is feeding a highly inductive load and has freewheeling diode across the load. The waveshapes of output voltage and output currenta)are similarb)are not similarc)may be similar or dissimilard)are similar only if firing angle is zeroCorrect answer is option 'B'. Can you explain this answer?
Question Description
A single phase semiconverter is feeding a highly inductive load and has freewheeling diode across the load. The waveshapes of output voltage and output currenta)are similarb)are not similarc)may be similar or dissimilard)are similar only if firing angle is zeroCorrect answer is option 'B'. Can you explain this answer? for Electrical Engineering (EE) 2024 is part of Electrical Engineering (EE) preparation. The Question and answers have been prepared according to the Electrical Engineering (EE) exam syllabus. Information about A single phase semiconverter is feeding a highly inductive load and has freewheeling diode across the load. The waveshapes of output voltage and output currenta)are similarb)are not similarc)may be similar or dissimilard)are similar only if firing angle is zeroCorrect answer is option 'B'. Can you explain this answer? covers all topics & solutions for Electrical Engineering (EE) 2024 Exam. Find important definitions, questions, meanings, examples, exercises and tests below for A single phase semiconverter is feeding a highly inductive load and has freewheeling diode across the load. The waveshapes of output voltage and output currenta)are similarb)are not similarc)may be similar or dissimilard)are similar only if firing angle is zeroCorrect answer is option 'B'. Can you explain this answer?.
Solutions for A single phase semiconverter is feeding a highly inductive load and has freewheeling diode across the load. The waveshapes of output voltage and output currenta)are similarb)are not similarc)may be similar or dissimilard)are similar only if firing angle is zeroCorrect answer is option 'B'. Can you explain this answer? in English & in Hindi are available as part of our courses for Electrical Engineering (EE). Download more important topics, notes, lectures and mock test series for Electrical Engineering (EE) Exam by signing up for free.
Here you can find the meaning of A single phase semiconverter is feeding a highly inductive load and has freewheeling diode across the load. The waveshapes of output voltage and output currenta)are similarb)are not similarc)may be similar or dissimilard)are similar only if firing angle is zeroCorrect answer is option 'B'. Can you explain this answer? defined & explained in the simplest way possible. Besides giving the explanation of A single phase semiconverter is feeding a highly inductive load and has freewheeling diode across the load. The waveshapes of output voltage and output currenta)are similarb)are not similarc)may be similar or dissimilard)are similar only if firing angle is zeroCorrect answer is option 'B'. Can you explain this answer?, a detailed solution for A single phase semiconverter is feeding a highly inductive load and has freewheeling diode across the load. The waveshapes of output voltage and output currenta)are similarb)are not similarc)may be similar or dissimilard)are similar only if firing angle is zeroCorrect answer is option 'B'. Can you explain this answer? has been provided alongside types of A single phase semiconverter is feeding a highly inductive load and has freewheeling diode across the load. The waveshapes of output voltage and output currenta)are similarb)are not similarc)may be similar or dissimilard)are similar only if firing angle is zeroCorrect answer is option 'B'. Can you explain this answer? theory, EduRev gives you an ample number of questions to practice A single phase semiconverter is feeding a highly inductive load and has freewheeling diode across the load. The waveshapes of output voltage and output currenta)are similarb)are not similarc)may be similar or dissimilard)are similar only if firing angle is zeroCorrect answer is option 'B'. Can you explain this answer? tests, examples and also practice Electrical Engineering (EE) tests.
Explore Courses for Electrical Engineering (EE) exam

Top Courses for Electrical Engineering (EE)

Explore Courses
Signup for Free!
Signup to see your scores go up within 7 days! Learn & Practice with 1000+ FREE Notes, Videos & Tests.
10M+ students study on EduRev