Power Electronics Under over voltage condition impedance offered by the voltage clamping device is low. infinity. moderate. high. low. infinity. moderate. high. ANSWER DOWNLOAD EXAMIANS APP
Power Electronics The reverse recovery time of diode is trr = 3 μs and the rate off all of the diode current is di/dt = 30 A/μs. The storage charge current QRR is 135 μs. 140 μs. 130 μs. 145 μs. 135 μs. 140 μs. 130 μs. 145 μs. ANSWER DOWNLOAD EXAMIANS APP
Power Electronics Figure shows two thyristors rated 400 A sharing a load current. Current through T2 is 180A. Current through T1 will be 150 A. 120 A. 110 A. 100 A. 150 A. 120 A. 110 A. 100 A. ANSWER DOWNLOAD EXAMIANS APP
Power Electronics Dynamic equalising circuit is useful to limit di / dt of SCR. both B and C. for voltage equalisation. to limit dV / dt of SCR. to limit di / dt of SCR. both B and C. for voltage equalisation. to limit dV / dt of SCR. ANSWER DOWNLOAD EXAMIANS APP
Power Electronics A single phase one pulse controlled circuit has a resistance R and counter emf E load 400 sin(314 t) as the source voltage. For a load counter emf of 200 V, the range of firing angle control is 30° to 180°. 60° to 180°. 30° to 150°. 60° to 120°. 30° to 180°. 60° to 180°. 30° to 150°. 60° to 120°. ANSWER DOWNLOAD EXAMIANS APP
Power Electronics A diac is ___________ switch An c. None of these A mechanical A d.c. An c. None of these A mechanical A d.c. ANSWER DOWNLOAD EXAMIANS APP
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