Power Systems Find the number of insulator discs required in string insulator, if operating voltage is 220 kV and maximum voltage of each disc is 11 kV? 21 20 13 10 21 20 13 10 ANSWER DOWNLOAD EXAMIANS APP
Power Systems Find the relation between sub transient (X"), transient (X') and synchronous reactance (X) ? X" > X' >X X" < X' > X X" > X' < X X" < X' < X X" > X' >X X" < X' > X X" > X' < X X" < X' < X ANSWER DOWNLOAD EXAMIANS APP
Power Systems Water hamming process in pen-stocks results in pressure increases. noise increases, pressure increases, velocity decreases. None of these noise increases. pressure increases. noise increases, pressure increases, velocity decreases. None of these noise increases. ANSWER DOWNLOAD EXAMIANS APP
Power Systems Length of short transmission line is up to any of the above 150 km 40 km 80 km any of the above 150 km 40 km 80 km ANSWER DOWNLOAD EXAMIANS APP
Power Systems Rating of fuse wire is expressed in Mho. Watts. Ampere. Ω. Mho. Watts. Ampere. Ω. ANSWER DOWNLOAD EXAMIANS APP
Power Systems A 200 MVA alternator operated at no load at frequency of 50 Hz, it has inertia constant of 5 MWsec/MVA and governing system has a time delay of 0.6 sec. If the load of 50 MW is suddenly applied then find the frequency deviation during this time? 0.76 Hz -0.85 Hz -0.76 Hz 0.85 Hz 0.76 Hz -0.85 Hz -0.76 Hz 0.85 Hz ANSWER DOWNLOAD EXAMIANS APP
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