Power Systems Objectives of power system is/are Cost of electrical energy per KWh is to be minimum Rated voltage and frequency has to be supplied to the consumers nether 1 nor 2 both 1 and 2 Cost of electrical energy per KWh is to be minimum Rated voltage and frequency has to be supplied to the consumers nether 1 nor 2 both 1 and 2 ANSWER DOWNLOAD EXAMIANS APP
Power Systems When is the ferranti effect on long overhead lines experienced? The line is lightly loaded The power factor is unity The line is heavily loaded The line is fully loaded The line is lightly loaded The power factor is unity The line is heavily loaded The line is fully loaded ANSWER DOWNLOAD EXAMIANS APP
Power Systems The Y bus matrix of 100 bus interconnected system is 90% sparse. Hence the number of transmission lines in the system must be 450 250 900 500 450 250 900 500 ANSWER DOWNLOAD EXAMIANS APP
Power Systems In an induction relay for a particular current setting the operating time 4 sec. When the time multiplier setting is 0.8 if the time multiplier setting is rest to 1 the operating time is 10. un changed. 5. 1. 10. un changed. 5. 1. 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? 0.85 Hz -0.85 Hz -0.76 Hz 0.76 Hz 0.85 Hz -0.85 Hz -0.76 Hz 0.76 Hz ANSWER DOWNLOAD EXAMIANS APP
Power Systems A generating station has a maximum demand of 100 MW, a load factor of 60% and a plant capacity factor of 50%. The reserve capacity of the plant is 80 MW 10 MW 20 MW 15 MW 80 MW 10 MW 20 MW 15 MW ANSWER DOWNLOAD EXAMIANS APP
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