Power Systems Which of the following matrix is used for load flow studies? Y bus matrix Unit matrix Z bus matrix null matrix Y bus matrix Unit matrix Z bus matrix null matrix ANSWER DOWNLOAD EXAMIANS APP
Power Systems Peterson coil is used in case of transmission line for increase the voltage level reduce ferranti effect improve power factor compensation of arcing grounds increase the voltage level reduce ferranti effect improve power factor compensation of arcing grounds ANSWER DOWNLOAD EXAMIANS APP
Power Systems The economics of power plant is greatly influenced by load factor both 1 and 2 nether 1 nor 2 diversity factor load factor both 1 and 2 nether 1 nor 2 diversity factor ANSWER DOWNLOAD EXAMIANS APP
Power Systems A 200 MW capacity generator has a speed regulation of 4% for a frequency drop of 0.05 Hz. Find the power input supplied by the turbine for maintaining constant frequency? 10 MW 20 MW 5 MW 15 MW 10 MW 20 MW 5 MW 15 MW ANSWER DOWNLOAD EXAMIANS APP
Power Systems A 1-phase transmission line has an impedance (3+4j) Ω . Find the power factor of the load for achieving maximum and zero voltage regulation? 0.8 lag and 0.8 lead 0.6 lag and 0.8 lead 0.6 lag and 0.6 lead 0.8 lag and 0.6 lead 0.8 lag and 0.8 lead 0.6 lag and 0.8 lead 0.6 lag and 0.6 lead 0.8 lag and 0.6 lead ANSWER DOWNLOAD EXAMIANS APP
Power Systems The surge impedance of a 400 km long overhead transmission line is 420 Ω. For a 200 km length of the same line, the surge impedance will be 400 Ω 210 Ω 420 Ω 840 Ω 400 Ω 210 Ω 420 Ω 840 Ω ANSWER DOWNLOAD EXAMIANS APP
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