During turn off state of a thyristor, idealized voltage and current waveforms are shown below,

For a triggering frequency of $50 H z$ , the mean power loss due to turn off is

2 W

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4 W

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3 W

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1 W

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Solution

The correct option is D $1 W$

The rms value of the waveform is $\frac{A}{\sqrt{3}}$
Power loss, $P = V_{r m s} I_{r m s} f \times t$
$= \frac{300}{\sqrt{3}} \times \frac{100}{\sqrt{3}} \times 50 \times 2 \times 10^{- 6} = 1 W$

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During turn off state of a thyristor, idealized voltage and current waveforms are shown below, For a triggering frequency of 50Hz, the mean power loss due to turn off is

The correct option is D 1 W The rms value of the waveform is A√3 Power loss, P=Vrms Irms f×t =300√3×100√3×50×2×10−6=1 W

During turn off state of a thyristor, idealized voltage and current waveforms are shown below,

For a triggering frequency of $50 H z$ , the mean power loss due to turn off is

The correct option is D $1 W$

The rms value of the waveform is $\frac{A}{\sqrt{3}}$
Power loss, $P = V_{r m s} I_{r m s} f \times t$
$= \frac{300}{\sqrt{3}} \times \frac{100}{\sqrt{3}} \times 50 \times 2 \times 10^{- 6} = 1 W$