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? 10 KV. 8 KV. 2 KV. 6 KV. 10 KV. 8 KV. 2 KV. 6 KV. 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 ? Voltage clamping device. CB. Snubber circuit. Fast acting current limiting device (FACL fuse). Voltage clamping device. CB. Snubber circuit. Fast acting current limiting device (FACL fuse). ANSWER DOWNLOAD EXAMIANS APP
Power Electronics What is used to protect the SCR from over current ? Heat sink. CB and fuse. Voltage clamping device. Snubber circuit. Heat sink. CB and fuse. Voltage clamping device. Snubber circuit. ANSWER DOWNLOAD EXAMIANS APP
Power Electronics IGBT combines the advantages of BJTs and SITs. None of these. BJTs and MOSFETs. SITs and MOSFETs. BJTs and SITs. None of these. BJTs and MOSFETs. SITs and MOSFETs. ANSWER DOWNLOAD EXAMIANS APP
Power Electronics A string of n parallel SCRs is operated at 72 KA, the rating of each SCR is 1 KA. If derating factor of the string is 0.1. Then calculate the value of n 80. 70. 60. 90. 80. 70. 60. 90. ANSWER DOWNLOAD EXAMIANS APP
Power Electronics To meet high current demand we use SCRs in anti parallel connection. series connection. parallel connection. both B and C. anti parallel connection. series connection. parallel connection. both B and C. ANSWER DOWNLOAD EXAMIANS APP
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