Power Electronics Dynamic equalizing circuit is used for equal division of current through each thyristor in series. equal division of voltage across each thyristor. equal division of voltage across each thyristor in parallel. equal division of current through each thyristor in parallel. equal division of current through each thyristor in series. equal division of voltage across each thyristor. equal division of voltage across each thyristor in parallel. equal division of current through each thyristor in parallel. ANSWER DOWNLOAD EXAMIANS APP
Power Electronics The V-I characteristics for a triac in the first and third quadrants are essentially identical to those of ___________ in its first quadrant Transistor None of these SCR UJT Transistor None of these SCR UJT ANSWER DOWNLOAD EXAMIANS APP
Power Electronics How can we protect SCR from thermal conditions ? Use of snubber circuit. Using equalizing circuit. Using heat sink. Using CB and fuse. Use of snubber circuit. Using equalizing circuit. Using heat sink. Using CB and fuse. ANSWER DOWNLOAD EXAMIANS APP
Power Electronics A power semiconductor may undergo damage due to Low dv/dt. High dv/dt. Low di/dt. High di/dt. Low dv/dt. High dv/dt. Low di/dt. High di/dt. ANSWER DOWNLOAD EXAMIANS APP
Power Electronics When the temperature increases, the intrinsic stand off ratio ___________. Decreases None of these Essentially remains the same Increases Decreases None of these Essentially remains the same Increases ANSWER DOWNLOAD EXAMIANS APP
Power Electronics The capacitance of reversed bised junction J2 in a thyristor is CJ2 = 20 pF and can be assumed to be independant of the off state voltage. The limiting value of the charging current to turn on the thyristor is 16 mA. What is the critical value of dv/dt? 600 V/µs. 1000 V/µs. 800 V/µs. 1200 V/µs. 600 V/µs. 1000 V/µs. 800 V/µs. 1200 V/µs. ANSWER DOWNLOAD EXAMIANS APP
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