Power Electronics Thyristor can be protected from over voltages by using voltage clamping device. heat sink. snubber circuit. fuse. voltage clamping device. heat sink. snubber circuit. fuse. ANSWER DOWNLOAD EXAMIANS APP
Power Electronics The turn-on time of an SCR with inductive load is 20 µs. The puls train frequency is 2.5 KHz with a mark/space ratio of 1/10, then SCR will Turn on. Turn on if inductance is removed. Turn on if pulse frequency us increased to two times. Not turn on. Turn on. Turn on if inductance is removed. Turn on if pulse frequency us increased to two times. Not turn on. ANSWER DOWNLOAD EXAMIANS APP
Power Electronics After proper turn on of thyristor None of these gate signal must be removed. gate signal should present but can be removed. gate signal is always present. None of these gate signal must be removed. gate signal should present but can be removed. gate signal is always present. ANSWER DOWNLOAD EXAMIANS APP
Power Electronics A step up chopper has input voltage 110 V and output voltage 150 V. The value of duty cycle is 0.27. 0.32. 0.45. 0.67. 0.27. 0.32. 0.45. 0.67. ANSWER DOWNLOAD EXAMIANS APP
Power Electronics Compared to transistor, ______________ have lower on state conduction losses and higher power handling capability Semi conductor diodes. Thyristor. TRIACs. MOSFETs. Semi conductor diodes. Thyristor. TRIACs. MOSFETs. ANSWER DOWNLOAD EXAMIANS APP
Power Electronics COOLMOS device can be used in application up to power range of 2 KVA. 500 VA. 1 KVA. 100 KVA. 2 KVA. 500 VA. 1 KVA. 100 KVA. ANSWER DOWNLOAD EXAMIANS APP
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