Power Electronics The latching current of SCR is 20 mA. Its holding current will be 10 mA. 23 mA. 40 mA. 60 mA. 10 mA. 23 mA. 40 mA. 60 mA. ANSWER DOWNLOAD EXAMIANS APP
Power Electronics A thyristor string is made of a no. of SCR connected in series and parallel. The string have volume and current of 11 KV and 4 KA. The voltage and current rating of available SCRs are 1800 V and 1000 A. For a string efficiency of 90 % let the number of SCRs in series and parallel are a and b respectively. Then the value of a and b will be 7, 5. 4, 6. 5, 7. 6, 4. 7, 5. 4, 6. 5, 7. 6, 4. ANSWER DOWNLOAD EXAMIANS APP
Power Electronics To turn on UJT, the forward bias on the emitter diode should be ___________ the peak point voltage. Equal to Less than More than None of these Equal to Less than More than None of these ANSWER DOWNLOAD EXAMIANS APP
Power Electronics The reverse recovery time of diode is trr = 3 μs and the rate off all of the diode current is di/dt = 30 A/μs. The storage charge current QRR is 140 μs. 145 μs. 135 μs. 130 μs. 140 μs. 145 μs. 135 μs. 130 μs. ANSWER DOWNLOAD EXAMIANS APP
Power Electronics Example of a voltage clamping device fast acting fuse. aluminium block. metal oxide varistor. snubber circuit. fast acting fuse. aluminium block. metal oxide varistor. snubber circuit. ANSWER DOWNLOAD EXAMIANS APP
Power Electronics Which of following is not a power transistor? TRIAC. COOLMOS. SITS. IGBTs. TRIAC. COOLMOS. SITS. IGBTs. ANSWER DOWNLOAD EXAMIANS APP
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