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 60. 70. 80. 90. 60. 70. 80. 90. ANSWER DOWNLOAD EXAMIANS APP
Power Electronics Gate circuit or triggering circuit of a thyristor is magnetic circuit. may be low power or high power circuit. high power circuit. lower power circuit. magnetic circuit. may be low power or high power circuit. high power circuit. lower power circuit. ANSWER DOWNLOAD EXAMIANS APP
Power Electronics ON state voltage drop across SCR lie between the range 0.5 - 1 V. 1.5 - 2 V. 1 - 1.5 V. 0 - 0.5 V. 0.5 - 1 V. 1.5 - 2 V. 1 - 1.5 V. 0 - 0.5 V. ANSWER DOWNLOAD EXAMIANS APP
Power Electronics After proper turn on of thyristor gate signal must be removed. None of these gate signal is always present. gate signal should present but can be removed. gate signal must be removed. None of these gate signal is always present. gate signal should present but can be removed. ANSWER DOWNLOAD EXAMIANS APP
Power Electronics During reverse recovery time charge carrier of junction J3 is swept out. charge carrier of junction J2 recombined. both B and C. charge carrier of junction J1 is swept out. charge carrier of junction J3 is swept out. charge carrier of junction J2 recombined. both B and C. charge carrier of junction J1 is swept out. ANSWER DOWNLOAD EXAMIANS APP
Power Electronics Under normal operating condition voltage clamping device offers impedance of low value. high value. zero value. moderate value. low value. high value. zero value. moderate value. ANSWER DOWNLOAD EXAMIANS APP
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