Power Systems The unit protection scheme provides back up protection. simultaneous protection. remote protection. primary protection. back up protection. simultaneous protection. remote protection. primary protection. ANSWER DOWNLOAD EXAMIANS APP
Power Systems Plug setting of a relay can be altered by varying none of these. air gap of magnetic path. adjustable back up stop. no. of ampere-turns. none of these. air gap of magnetic path. adjustable back up stop. no. of ampere-turns. ANSWER DOWNLOAD EXAMIANS APP
Power Systems The annual depreciation of hydro power plant is about 0.5 - 1.5 %. 20 - 25 %. 15 - 20 %. 10 - 15 %. 0.5 - 1.5 %. 20 - 25 %. 15 - 20 %. 10 - 15 %. ANSWER DOWNLOAD EXAMIANS APP
Power Systems The main objectives of power system is/are Cost of electrical energy per KWh is to be minimum Reliable power has to be available All of these Flexible power has to be available. Cost of electrical energy per KWh is to be minimum Reliable power has to be available All of these Flexible power has to be available. ANSWER DOWNLOAD EXAMIANS APP
Power Systems Sum of the elements of row i equal to shunt admittances connected to bus i. If this summation is zero, indicates there is no shunt admittance both 1 and 2 mutual coupling None of these shunt admittance both 1 and 2 mutual coupling None of these ANSWER DOWNLOAD EXAMIANS APP
Power Systems A generator has reactances of sub transient (X")= 0.5 pu, transient (X') = 0.8 pu and synchronous reactance (X) = 5 pu. The voltages at these reactances are 1.2 V, 1.1 V and 1 V respectively. Find the corresponding sub transient fault current in pu? 3.975 pu 0.2 pu 2.4 pu 1.375 pu 3.975 pu 0.2 pu 2.4 pu 1.375 pu ANSWER DOWNLOAD EXAMIANS APP
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