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The finger voltage of an SCR is

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in Power Electronics by (27.1k points)
The finger voltage of an SCR is

(a) minimum value of Vak to turn on the device with gate triggering

(b) maximum value of Vak to turn on the device with gate triggering

(c) minimum value of Vak to turn on the device without gate triggering

(d) maximum value of Vak to turn on the device without gate triggering

This question was addressed to me during an interview.

The query is from Thyristor Ratings in chapter Power Electronics Devices of Power Electronics

1 Answer

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by (45.1k points)
Correct choice is (a) minimum value of Vak to turn on the device with gate triggering

To explain: Finger voltage is the minimum value of Vak (anode to cathode voltage) to turn on the device with gate triggering, it is to be avoided for accidental turn-on of the device.

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