EXAMIANS
60 thyrsistors are connected in series and parallel to form a 10 KV and 5.5 KA switch. Each thyristor is rated for 1.2 KV, 1 KA. The no. of parallel path are 6. The efficiency of the switch is
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For series connected SCR’s dynamic equalising circuit consists of
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Dynamic equalising circuit is useful
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The latching current of GTO should be of order
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Thyristor can be protected from over voltages by using
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Between the peak point and the valley point of UJT emitter characteristics we have ___________ region
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4 thyristors rated 200 V in series. The operating voltage of the string is 0.600 V. Derating factor of the string is
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A diac is simply ___________.
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A triac has ___________ semiconductor layers.
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The turn-on time of an SCR with inductive load is 20 µs. The puls train frequency is 2.5 KHz with a mark/space ratio of 1/10, then SCR will
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