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Electronics and Communication Engineering - Power Electronics

Exercise : Power Electronics - Section 4
6.
Which converter is used in HVDC transmission?
3 pulse
6 pulse
12 pulse
24 pulse
Answer: Option
Explanation:
No answer description is available. Let's discuss.
7.

Assertion (A): The turn on time of SCR is about 1 to 4 ms.

Reason (R): The turn off time of SCR is about 10 to 300 ms.

Both A and R are correct and R is correct explanation of A
Both A and R correct but R is not correct explanation of A
A is correct but R is wrong
A is wrong but R is correct
Answer: Option
Explanation:
No answer description is available. Let's discuss.
8.
An n pulse rectifier is fed by a source having an inductance L. If load current is I0, the voltage drop due to overlap is
Answer: Option
Explanation:
No answer description is available. Let's discuss.
9.
Which chopper circuit operates in all the 4 quadrants?
A
C
D
E
Answer: Option
Explanation:
No answer description is available. Let's discuss.
10.
A single phase cycloconverter feeds a resistance heating load. The heating power is provided by
only the fundamental component of output wave
only higher harmonics in the output wave
both fundamental and higher harmonics in the output wave
either (a) or (b)
Answer: Option
Explanation:
No answer description is available. Let's discuss.
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