Power Electronics After proper turn on of thyristor None of these gate signal must be removed. gate signal should present but can be removed. gate signal is always present. None of these gate signal must be removed. gate signal should present but can be removed. gate signal is always present. ANSWER DOWNLOAD EXAMIANS APP
Power Electronics Light triggering mainly used in medium voltage direct current transmission. all of these. high voltage direct current transmission. low - voltage direct current transmission. medium voltage direct current transmission. all of these. high voltage direct current transmission. low - voltage direct current transmission. ANSWER DOWNLOAD EXAMIANS APP
Power Electronics Snubber circuit is used with SCR in parallel. anti parallel. either series or parallel. in series. in parallel. anti parallel. either series or parallel. in series. ANSWER DOWNLOAD EXAMIANS APP
Power Electronics When a UJT is turned ON, the resistance between emitter terminal and lower base terminal ___________ Is decreased None of these Remains the same Is increased Is decreased None of these Remains the same Is increased ANSWER DOWNLOAD EXAMIANS APP
Power Electronics A step up chopper has input voltage 110 V and output voltage 150 V. The value of duty cycle is 0.32. 0.67. 0.27. 0.45. 0.32. 0.67. 0.27. 0.45. 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 7, 5. 4, 6. 5, 7. 6, 4. 7, 5. 4, 6. 5, 7. 6, 4. ANSWER DOWNLOAD EXAMIANS APP
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