Power Systems Per unit of any quantity is defined as base value of quantity /actual value of quantity in same units actual value of quantity /base value of quantity in same units actual value of quantity /base value of quantity in different units base value of quantity /actual value of quantity in different units base value of quantity /actual value of quantity in same units actual value of quantity /base value of quantity in same units actual value of quantity /base value of quantity in different units base value of quantity /actual value of quantity in different units ANSWER DOWNLOAD EXAMIANS APP
Power Systems Maximum power transfer capability of transmission line can be increased by All of these Using bundled conductors Parallel transmission lines Using series capacitance All of these Using bundled conductors Parallel transmission lines Using series capacitance ANSWER DOWNLOAD EXAMIANS APP
Power Systems An isolated synchronous generator with transient reactance equal to 0.1 pu on a 100 MVA base is connected to the high voltage bus through a step up transformer of reactance 0.1 pu on a 100 MVA base. The fault level at the bus is 400 MVA 100 MVA 200 MVA 500 MVA 400 MVA 100 MVA 200 MVA 500 MVA ANSWER DOWNLOAD EXAMIANS APP
Power Systems If a generator of 250 MVA rating has an inertia constant of 6 MJ/MVA, its inertia constant on 100 MVA base is 6 MJ/MVA 10.5 MJ/MVA 15 MJ/MVA 2.5 MJ/MVA 6 MJ/MVA 10.5 MJ/MVA 15 MJ/MVA 2.5 MJ/MVA ANSWER DOWNLOAD EXAMIANS APP
Power Systems Which statement is not correct for the transmission line parameter R, L, G and C At high frequencies at which most of communication system operate the internal inductance of the conductor is neglected. For each line, the conductors are characterized by σ c, μ c, εo = ε c and the homog G = I/R. R is the AC resistance per unit length of conductor C. The line parameter R,L,G and C are uniformly distributed along the entire length of the line C. At high frequencies at which most of communication system operate the internal inductance of the conductor is neglected. For each line, the conductors are characterized by σ c, μ c, εo = ε c and the homog G = I/R. R is the AC resistance per unit length of conductor C. The line parameter R,L,G and C are uniformly distributed along the entire length of the line C. ANSWER DOWNLOAD EXAMIANS APP
Power Systems Positive, negative and zero sequence impedances of line are 2,2 and 5 pu respectively. Find self and mutual impedances respectively? 2 and 2 pu 3 and 1 pu 1 and 3 pu 2 and 5 pu 2 and 2 pu 3 and 1 pu 1 and 3 pu 2 and 5 pu ANSWER DOWNLOAD EXAMIANS APP
EXAMIANS