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Consider the following statements regarding phase controlled converters: i) They do not provide smooth variation of output voltage. ii) They inject harmonics into the power system. iii) They draw non-unity power factor current for finite firing angles. Which of the above statements are correct?

Consider the following statements regarding phase controlled converters: i) They do not provide smooth variation of output voltage. ii) They inject harmonics into the power system. iii) They draw non-unity power factor current for finite firing angles. Which of the above statements are correct? Correct Answer All the three

All the above given statements are correct. They all are the major drawbacks of using phase controlled converters.

Related Questions

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 :
Consider the following statements: Phase controlled converters at small values of output voltage have 1. Large harmonics in utility system 2. Poor power factor 3. High efficiency 4. Notches in line voltage waveform Which of the above statements are correct?
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