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Power Electronics
A triac has ___________ semiconductor layers.
Five
Two
Four
Three
Five
Two
Four
Three
Answer
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Related Question
Power Electronics
A thyristor string is made of a no. of SCR connected in series and parallel. The string have volume and current of 11 KV and 4 KA. The voltage and current rating of available SCRs are 1800 V and 1000 A. For a string efficiency of 90 % let the number of SCRs in series and parallel are a and b respectively. Then the value of a and b will be
5, 7.
7, 5.
6, 4.
4, 6.
5, 7.
7, 5.
6, 4.
4, 6.
Answer
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Power Electronics
Which semiconductor device acts like a diode and two transistor?
Diac.
UJT.
SCR.
Triac.
Diac.
UJT.
SCR.
Triac.
Answer
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Power Electronics
Light triggering mainly used in
low - voltage direct current transmission.
all of these.
medium voltage direct current transmission.
high voltage direct current transmission.
low - voltage direct current transmission.
all of these.
medium voltage direct current transmission.
high voltage direct current transmission.
Answer
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Power Electronics
A diac is ___________ switch
A mechanical
None of these
A d.c.
An c.
A mechanical
None of these
A d.c.
An c.
Answer
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Power Electronics
The latching current of GTO should be of order
1 A.
2 A.
100 mA.
500 mA.
1 A.
2 A.
100 mA.
500 mA.
Answer
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