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Electronics and Communication Engineering - Power Electronics

Exercise : Power Electronics - Section 4
16.
In a 3 phase bridge inverter with 180° mode of operation the numbers of thyristors conducting at one time are
1
2
3
4
Answer: Option
Explanation:
No answer description is available. Let's discuss.
17.
A single phase full converter can operate in
4 quadrants
3 quadrants
2 quadrants
1 quadrant
Answer: Option
Explanation:
No answer description is available. Let's discuss.
18.
In a 3 phase semiconverter, the freewheeling diode comes into operation only if firing angle
is zero
is 60°
is more than 60°
is more than 90°
Answer: Option
Explanation:
No answer description is available. Let's discuss.
19.
In the circuit of figure, the load current when thyristor is off
is constant
increases exponentially
decreases exponentially
zero
Answer: Option
Explanation:
No answer description is available. Let's discuss.
20.
A full bridge inverter is fed by a battery of 30 V. The rms value of output voltage is
15 V
152 V
30 V
302 V
Answer: Option
Explanation:
No answer description is available. Let's discuss.
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