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Power Electronics
Dynamic equalising circuit is useful
both B and C.
for voltage equalisation.
to limit di / dt of SCR.
to limit dV / dt of SCR.
both B and C.
for voltage equalisation.
to limit di / dt of SCR.
to limit dV / dt of SCR.
Answer
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Related Question
Power Electronics
The function of snubber circuit connected across the SCR is to
decrease di / dt.
decrease dV / dt.
increase dV / dt.
suppress dV / dt.
decrease di / dt.
decrease dV / dt.
increase dV / dt.
suppress dV / dt.
Answer
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Power Electronics
A 200 A thyristor is to be operated in parallel with a 300 A thyristor. The ON state voltage drops are 1.5 V and 1.2 Volts. What is the value of resistance R to be connected in series with each thyristor, so that current through the combination is 500 A and each of them is fully loaded ?
0.03 ohm
0.3 ohm
3.0 ohm
0.3 ohm
0.03 ohm
0.3 ohm
3.0 ohm
0.3 ohm
Answer
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Power Electronics
When the temperature increases, the intrinsic stand off ratio ___________.
Essentially remains the same
Decreases
None of these
Increases
Essentially remains the same
Decreases
None of these
Increases
Answer
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Power Electronics
In forward blocking mode of a thyristor
junction J3 is in forward bias and J1, J2 is in reverse bias.
junction J2 is in reverse bias and J1, J3 is in forward bias.
Junction J1 and J2 is in forward bias and J3 is in reverse bias.
Junction J1, J3 is in reverse bias and J2 is in forward bias.
junction J3 is in forward bias and J1, J2 is in reverse bias.
junction J2 is in reverse bias and J1, J3 is in forward bias.
Junction J1 and J2 is in forward bias and J3 is in reverse bias.
Junction J1, J3 is in reverse bias and J2 is in forward bias.
Answer
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Power Electronics
Which semiconductor device acts like a diode and two transistor?
Triac.
UJT.
Diac.
SCR.
Triac.
UJT.
Diac.
SCR.
Answer
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