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