Power Electronics The typical value of SCR for modern alternator is 0.5. 1.2. 1.0. 1.5. 0.5. 1.2. 1.0. 1.5. ANSWER DOWNLOAD EXAMIANS APP
Power Electronics Which of following is not a power transistor? SITS. IGBTs. COOLMOS. TRIAC. SITS. IGBTs. COOLMOS. TRIAC. 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. 6, 4. 4, 6. 5, 7. 7, 5. 6, 4. 4, 6. 5, 7. ANSWER DOWNLOAD EXAMIANS APP
Power Electronics When a UJT is turned ON, the resistance between emitter terminal and lower base terminal ___________ None of these Is increased Is decreased Remains the same None of these Is increased Is decreased Remains the same 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 Calculate the maximum voltage that can be safely blocked by the string shown in figure, if maximum allowable leakage current is 2 mA? 2 KV. 8 KV. 6 KV. 10 KV. 2 KV. 8 KV. 6 KV. 10 KV. ANSWER DOWNLOAD EXAMIANS APP
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