Power Electronics Under normal operating condition voltage clamping device offers impedance of high value. low value. moderate value. zero value. high value. low value. moderate value. zero value. ANSWER DOWNLOAD EXAMIANS APP
Power Electronics What is used to protect the SCR from over current ? Voltage clamping device. Heat sink. CB and fuse. Snubber circuit. Voltage clamping device. Heat sink. CB and fuse. Snubber circuit. ANSWER DOWNLOAD EXAMIANS APP
Power Electronics CB used for over current protection of thyristor operates when the fault current is of short duration. of long period. both (A) and (B). neither (A) nor (B). of short duration. of long period. both (A) and (B). neither (A) nor (B). 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 ? Snubber circuit. CB. Voltage clamping device. Fast acting current limiting device (FACL fuse). Snubber circuit. CB. Voltage clamping device. Fast acting current limiting device (FACL fuse). ANSWER DOWNLOAD EXAMIANS APP
Power Electronics How can we protect SCR from thermal conditions ? Using CB and fuse. Use of snubber circuit. Using equalizing circuit. Using heat sink. Using CB and fuse. Use of snubber circuit. Using equalizing circuit. Using heat sink. ANSWER DOWNLOAD EXAMIANS APP
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