Power Electronics Gate circuit or triggering circuit of a thyristor is magnetic circuit. may be low power or high power circuit. lower power circuit. high power circuit. magnetic circuit. may be low power or high power circuit. lower power circuit. high power circuit. ANSWER DOWNLOAD EXAMIANS APP
Power Electronics Which of following is normally ON device BJT. IGBT. SIT. TRIAC. BJT. IGBT. SIT. TRIAC. 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? 1200 V/µs. 1000 V/µs. 600 V/µs. 800 V/µs. 1200 V/µs. 1000 V/µs. 600 V/µs. 800 V/µs. ANSWER DOWNLOAD EXAMIANS APP
Power Electronics What may happen high dV / dt? Unwanted turn ON. Anyone of these. Both A and B. Breakdown of J2 junction. Unwanted turn ON. Anyone of these. Both A and B. Breakdown of J2 junction. ANSWER DOWNLOAD EXAMIANS APP
Power Electronics What is used to protect a thyristor from high di / dt conditions? Voltage clamping device. Inductor. Snubber circuit. Fuse. Voltage clamping device. Inductor. Snubber circuit. Fuse. ANSWER DOWNLOAD EXAMIANS APP
Power Electronics When a large surge current of very short duration flows through a thyristor then which one of the following device will operate to protect the thyristor ? CB. Fast acting current limiting device (FACL fuse). Snubber circuit. Voltage clamping device. CB. Fast acting current limiting device (FACL fuse). Snubber circuit. Voltage clamping device. ANSWER DOWNLOAD EXAMIANS APP
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