Power Systems What type of back up protection is used for alternators? Buchholz relay. IDMT relay. Impedance relay. Mho relay. Buchholz relay. IDMT relay. Impedance relay. Mho relay. ANSWER DOWNLOAD EXAMIANS APP
Power Systems Reflector of a nuclear reactor are made up of cast iron. beryllium. steel. boron. cast iron. beryllium. steel. boron. ANSWER DOWNLOAD EXAMIANS APP
Power Systems Installation of capacitors at suitable locations and of optimum size in a distribution system results in improved voltage regulation All of these reduction of KVA rating of distribution transformers reduction in distribution power loss improved voltage regulation All of these reduction of KVA rating of distribution transformers reduction in distribution power loss ANSWER DOWNLOAD EXAMIANS APP
Power Systems A power system consists of 300 buses out of which 20 buses are generator buses, 25 buses are the ones with reactive power support buses and 15 buses are ones with fixed shunt capacitors. All the other buses are load buses. It is proposed to perform a load flow analysis for the system using Newton-Raphson Jacobian matrix is 555×555 540×540 554×554 553×553 555×555 540×540 554×554 553×553 ANSWER DOWNLOAD EXAMIANS APP
Power Systems Which of the following statements are true? Bus impedance matrix is a full matrix Bus admittance matrix is a sparse matrix both 1 and 2 nether 1 nor 2 Bus impedance matrix is a full matrix Bus admittance matrix is a sparse matrix both 1 and 2 nether 1 nor 2 ANSWER DOWNLOAD EXAMIANS APP
Power Systems A transmission line has a surge impedance of 400 Ω for a length of the line of 200 km. If the length of line is increased to 400 km, then its surge impedance is 800 Ω 200 Ω 0 Ω 400 Ω 800 Ω 200 Ω 0 Ω 400 Ω ANSWER DOWNLOAD EXAMIANS APP
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