Power Electronics Under normal operating condition voltage clamping device offers impedance of moderate value. low value. high value. zero value. moderate value. low value. high value. zero value. ANSWER DOWNLOAD EXAMIANS APP
Power Electronics A UJT is sometimes called ___________ diode. Low resistance Double-base High resistance Single-base Low resistance Double-base High resistance Single-base ANSWER DOWNLOAD EXAMIANS APP
Power Electronics Typical range of thyristor turn OFF time is 3 - 50 µs. 3 - 10 µs. 3 - 500 µs. 3 - 100 µs. 3 - 50 µs. 3 - 10 µs. 3 - 500 µs. 3 - 100 µs. ANSWER DOWNLOAD EXAMIANS APP
Power Electronics A string of n parallel SCRs is operated at 72 KA, the rating of each SCR is 1 KA. If derating factor of the string is 0.1. Then calculate the value of n 70. 90. 80. 60. 70. 90. 80. 60. ANSWER DOWNLOAD EXAMIANS APP
Power Electronics SCR will be turned off when anode current is < latching current but greater than holding current and gate signal is present. < latching current but greater than holding current and gate signal is 0. less than holding current. both (A) and (B). < latching current but greater than holding current and gate signal is present. < latching current but greater than holding current and gate signal is 0. less than holding current. both (A) and (B). ANSWER DOWNLOAD EXAMIANS APP
Power Electronics Maximum power loss occurs during rise time. delay time. spread time. all. rise time. delay time. spread time. all. ANSWER DOWNLOAD EXAMIANS APP
EXAMIANS