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Power Electronics
Power Electronics
The function of snubber circuit connected across the SCR is to
decrease di / dt.
increase dV / dt.
suppress dV / dt.
decrease dV / dt.
decrease di / dt.
increase dV / dt.
suppress dV / dt.
decrease dV / dt.
Answer
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Power Electronics
A single phase full bridge inverter can operate in load commutation mode in case load consists of
RL.
RLC overdamped.
RLC critically damped.
RLC underdamped.
RL.
RLC overdamped.
RLC critically damped.
RLC underdamped.
Answer
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Power Electronics
Practical way of obtaining static voltage equalization in series connected SCRs is by the use of
resistors of the same value across each SCR.
one resistor in series with each SCR.
one resistor across the string.
resistors of different values across each SCR.
resistors of the same value across each SCR.
one resistor in series with each SCR.
one resistor across the string.
resistors of different values across each SCR.
Answer
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Power Electronics
Switching frequency of SITH is
5 KHz.
100 KHz.
60 KHz.
10 KHz.
5 KHz.
100 KHz.
60 KHz.
10 KHz.
Answer
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Power Electronics
The maximum di/dt in a SCR is
Inversely proportional to supply voltage.
Both A and B.
Directly proportional to supply voltage.
Directly proportional to inductance in the circuit.
Inversely proportional to supply voltage.
Both A and B.
Directly proportional to supply voltage.
Directly proportional to inductance in the circuit.
Answer
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