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In comparing the operation of the half-controlled 2-pulse circuit with that of the fully-controlled circuit, which of the following statements are evident?
1. Since half the thyristors are replaced by diodes, a half-controlled converter costs less than a fully-controlled converter.
2. Due to the freewheeling action with a half-controlled bridge-circuit power factor is improved in half-controlled converters.
3. The AC supply current is more distorted due to its zero periods with the half-controlled circuit, compared to a fully-controlled bridge circuit.
Select the correct answer using the code given below :
  • a)
    1 and 2 only
  • b)
    2 and 3 only
  • c)
    1 and 3 only
  • d)
    1, 2 and 3
Correct answer is option 'A'. Can you explain this answer?
Most Upvoted Answer
In comparing the operation of the half-controlled 2-pulse circuit with...
The correct answer is option 'A' - 1 and 2 only.

Explanation:

1. Cost Comparison:
- In a half-controlled converter circuit, half of the thyristors are replaced by diodes. This means that only half of the thyristors need to be controlled, reducing the cost of the converter.
- On the other hand, in a fully-controlled converter circuit, all thyristors need to be controlled, making it more expensive compared to a half-controlled converter.

2. Power Factor Improvement:
- In a half-controlled bridge circuit, during the freewheeling action (when the thyristors are not conducting), the diodes allow the current to flow in the same direction as the input voltage.
- This results in a better power factor in the half-controlled converter compared to a fully-controlled converter, where the freewheeling current flows in the opposite direction to the input voltage.

3. Distorted AC Supply Current:
- In a fully-controlled bridge circuit, the thyristors can be controlled to switch on and off at any point in the AC waveform, allowing for better control of the output voltage and reducing distortion.
- However, in a half-controlled circuit, the diodes only conduct when the thyristors are not conducting. This results in zero periods in the AC supply current, which can introduce more distortion compared to a fully-controlled bridge circuit.

Therefore, the correct statements are 1 and 2 only.
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In comparing the operation of the half-controlled 2-pulse circuit with...
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In comparing the operation of the half-controlled 2-pulse circuit with that of the fully-controlled circuit, which of the following statements are evident?1. Since half the thyristors are replaced by diodes, a half-controlled converter costs less than a fully-controlled converter.2. Due to the freewheeling action with a half-controlled bridge-circuit power factor is improved in half-controlled converters.3. The AC supply current is more distorted due to its zero periods with the half-controlled circuit, compared to a fully-controlled bridge circuit.Select the correct answer using the code given below :a)1 and 2 onlyb)2 and 3 onlyc)1 and 3 onlyd)1, 2 and 3Correct answer is option 'A'. Can you explain this answer?
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In comparing the operation of the half-controlled 2-pulse circuit with that of the fully-controlled circuit, which of the following statements are evident?1. Since half the thyristors are replaced by diodes, a half-controlled converter costs less than a fully-controlled converter.2. Due to the freewheeling action with a half-controlled bridge-circuit power factor is improved in half-controlled converters.3. The AC supply current is more distorted due to its zero periods with the half-controlled circuit, compared to a fully-controlled bridge circuit.Select the correct answer using the code given below :a)1 and 2 onlyb)2 and 3 onlyc)1 and 3 onlyd)1, 2 and 3Correct answer is option 'A'. 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 In comparing the operation of the half-controlled 2-pulse circuit with that of the fully-controlled circuit, which of the following statements are evident?1. Since half the thyristors are replaced by diodes, a half-controlled converter costs less than a fully-controlled converter.2. Due to the freewheeling action with a half-controlled bridge-circuit power factor is improved in half-controlled converters.3. The AC supply current is more distorted due to its zero periods with the half-controlled circuit, compared to a fully-controlled bridge circuit.Select the correct answer using the code given below :a)1 and 2 onlyb)2 and 3 onlyc)1 and 3 onlyd)1, 2 and 3Correct answer is option 'A'. 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 In comparing the operation of the half-controlled 2-pulse circuit with that of the fully-controlled circuit, which of the following statements are evident?1. Since half the thyristors are replaced by diodes, a half-controlled converter costs less than a fully-controlled converter.2. Due to the freewheeling action with a half-controlled bridge-circuit power factor is improved in half-controlled converters.3. The AC supply current is more distorted due to its zero periods with the half-controlled circuit, compared to a fully-controlled bridge circuit.Select the correct answer using the code given below :a)1 and 2 onlyb)2 and 3 onlyc)1 and 3 onlyd)1, 2 and 3Correct answer is option 'A'. Can you explain this answer?.
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