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 130 μs. 140 μs. 135 μs. 145 μs. 130 μs. 140 μs. 135 μs. 145 μs. ANSWER DOWNLOAD EXAMIANS APP
Power Electronics If holding current of a thyristor is 2 mA then latching current should be 0.01 A. 0.002 A. 0.009 A. 0.004 A. 0.01 A. 0.002 A. 0.009 A. 0.004 A. ANSWER DOWNLOAD EXAMIANS APP
Power Electronics The triac is ___________. A four-terminal device Not a thyristor Like a bidirectional SCR None of these A four-terminal device Not a thyristor Like a bidirectional SCR None of these ANSWER DOWNLOAD EXAMIANS APP
Power Electronics Under normal operating condition voltage clamping device offers impedance of zero value. moderate value. high value. low value. zero value. moderate value. high value. low value. ANSWER DOWNLOAD EXAMIANS APP
Power Electronics What is used to protect the SCR from over current ? Snubber circuit. Heat sink. Voltage clamping device. CB and fuse. Snubber circuit. Heat sink. Voltage clamping device. CB and fuse. ANSWER DOWNLOAD EXAMIANS APP
Power Electronics After proper turn on of thyristor gate signal should present but can be removed. gate signal must be removed. gate signal is always present. None of these gate signal should present but can be removed. gate signal must be removed. gate signal is always present. None of these ANSWER DOWNLOAD EXAMIANS APP
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