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Electronics and Communication Engineering - Power Electronics

Exercise : Power Electronics - Section 9
6.
McMurrary full bridge inverter uses
auxiliary commutation
complementary commutation
natural commutation
any of the above
Answer: Option
Explanation:
No answer description is available. Let's discuss.
7.
A fully controlled bridge converter feeds a highly inductive load such that the load current can be assumed to be constant. The wave shape of input current is
dc
sinusoidal
rectangular
none of the above
Answer: Option
Explanation:
No answer description is available. Let's discuss.
8.
A static excitation system uses
transformer and thyristors
transformer and ac exciter
dc exciter and ac exciter
transformer and dc exciter
Answer: Option
Explanation:
No answer description is available. Let's discuss.
9.
The application of gate signal decreases the break over voltage of on SCR.
True
False
Answer: Option
Explanation:
No answer description is available. Let's discuss.
10.
The power factor at the input terminals of a cyclo- converter is generally
low and leading
low and lagging
high and leading
high and lagging
Answer: Option
Explanation:
No answer description is available. Let's discuss.
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