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 A diac has ___________ semiconductor layers Three Two Four None of these Three Two Four None of these ANSWER DOWNLOAD EXAMIANS APP
Power Electronics Example of a voltage clamping device aluminium block. metal oxide varistor. fast acting fuse. snubber circuit. aluminium block. metal oxide varistor. fast acting fuse. snubber circuit. ANSWER DOWNLOAD EXAMIANS APP
Power Electronics Thyristor can be protected from over voltages by using fuse. voltage clamping device. snubber circuit. heat sink. fuse. voltage clamping device. snubber circuit. heat sink. ANSWER DOWNLOAD EXAMIANS APP
Power Electronics Under over voltage condition impedance offered by the voltage clamping device is moderate. low. high. infinity. moderate. low. high. infinity. ANSWER DOWNLOAD EXAMIANS APP
Power Electronics What is used to protect a thyristor from high di / dt conditions? Inductor. Voltage clamping device. Snubber circuit. Fuse. Inductor. Voltage clamping device. Snubber circuit. Fuse. ANSWER DOWNLOAD EXAMIANS APP
EXAMIANS