Power Electronics Thyristor can be protected from over voltages by using fuse. snubber circuit. heat sink. voltage clamping device. fuse. snubber circuit. heat sink. voltage clamping device. ANSWER DOWNLOAD EXAMIANS APP
Power Electronics Latching current for an SCR inserted between a dc voltage source of 200 V and load is 100 mA. Compute the minimum rate of width pulse required to turn ON the SCR in case load consists of R = 20 Ω in series with L = 0.2 H. 200 µs. 150 µs. 100 µs. 300 µs. 200 µs. 150 µs. 100 µs. 300 µs. ANSWER DOWNLOAD EXAMIANS APP
Power Electronics The triac is ___________. A four-terminal device None of these Like a bidirectional SCR Not a thyristor A four-terminal device None of these Like a bidirectional SCR Not a thyristor ANSWER DOWNLOAD EXAMIANS APP
Power Electronics Let of a thyristor Vc1, Vc2, Vc3 are forward break over voltage for gate current Ig1, Ig2, Ig3 respectively. Then Vc1 = Vc2 = Vc3 any value of Ig. Vc1 > Vc2 > Vc3 when Ig1 > Ig2 > Ig3. Vc1 > Vc2 > Vc3 when Ig1= Ig2 Vc1 > Vc2 > Vc3 when Ig1 < Ig2 < Ig3. Vc1 = Vc2 = Vc3 any value of Ig. Vc1 > Vc2 > Vc3 when Ig1 > Ig2 > Ig3. Vc1 > Vc2 > Vc3 when Ig1= Ig2 Vc1 > Vc2 > Vc3 when Ig1 < Ig2 < Ig3. ANSWER DOWNLOAD EXAMIANS APP
Power Electronics A thyristor can termed as DC switch. AC switch. Both a and B. Square wave switch. DC switch. AC switch. Both a and B. Square wave switch. ANSWER DOWNLOAD EXAMIANS APP
Power Electronics Light triggering mainly used in high voltage direct current transmission. low - voltage direct current transmission. medium voltage direct current transmission. all of these. high voltage direct current transmission. low - voltage direct current transmission. medium voltage direct current transmission. all of these. ANSWER DOWNLOAD EXAMIANS APP
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