Power Electronics Light triggering mainly used in medium voltage direct current transmission. high voltage direct current transmission. all of these. low - voltage direct current transmission. medium voltage direct current transmission. high voltage direct current transmission. all of these. low - voltage direct current transmission. ANSWER DOWNLOAD EXAMIANS APP
Power Electronics Compared to transistor, ______________ have lower on state conduction losses and higher power handling capability TRIACs. MOSFETs. Thyristor. Semi conductor diodes. TRIACs. MOSFETs. Thyristor. Semi conductor diodes. ANSWER DOWNLOAD EXAMIANS APP
Power Electronics During reverse recovery time charge carrier of junction J3 is swept out. both B and C. charge carrier of junction J1 is swept out. charge carrier of junction J2 recombined. charge carrier of junction J3 is swept out. both B and C. charge carrier of junction J1 is swept out. charge carrier of junction J2 recombined. ANSWER DOWNLOAD EXAMIANS APP
Power Electronics A triac can pass a portion of ___________ half-cycle through the load. Only positive None of these Only negative Both positive and negative Only positive None of these Only negative Both positive and negative ANSWER DOWNLOAD EXAMIANS APP
Power Electronics A thyristor string is made of a no. of SCR connected in series and parallel. The string have volume and current of 11 KV and 4 KA. The voltage and current rating of available SCRs are 1800 V and 1000 A. For a string efficiency of 90 % let the number of SCRs in series and parallel are a and b respectively. Then the value of a and b will be 6, 4. 7, 5. 4, 6. 5, 7. 6, 4. 7, 5. 4, 6. 5, 7. ANSWER DOWNLOAD EXAMIANS APP
Power Electronics If a latching current for the circuit shown in figure is 2 mA. Obtain the value of minimum width of the property turn ON the SCR? 3.2 µs 3 µs. 3.3 µs 3.1 µs 3.2 µs 3 µs. 3.3 µs 3.1 µs ANSWER DOWNLOAD EXAMIANS APP
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