Power Systems Which of the following is/are the disadvantages of phase modifiers? Initial cost of synchronous phase modifier is higher All of these It requires more maintenance because of running equipment It consumes both active and reactive power Initial cost of synchronous phase modifier is higher All of these It requires more maintenance because of running equipment It consumes both active and reactive power ANSWER DOWNLOAD EXAMIANS APP
Power Systems The value of off diagonal elements is sum of admittances connected at bus i which is connected between bus i and bus j with negative sign sum of admittances connected at bus j which is connected between bus i and bus j with positive sign sum of admittances connected at bus i which is connected between bus i and bus j with negative sign sum of admittances connected at bus j which is connected between bus i and bus j with positive sign ANSWER DOWNLOAD EXAMIANS APP
Power Systems In kaplan runner, the number of blades is generally of the order of 16 - 24. 12 - 16. 1 - 2. 3 - 6. 16 - 24. 12 - 16. 1 - 2. 3 - 6. ANSWER DOWNLOAD EXAMIANS APP
Power Systems In thermal power stations, economiser will increase the thermal efficiency both 2 and 3 reduce the heat reduce the thermal efficiency increase the thermal efficiency both 2 and 3 reduce the heat reduce the thermal efficiency ANSWER DOWNLOAD EXAMIANS APP
Power Systems Most commonly used material for insulator is porcelain mica All of these glass porcelain mica All of these glass 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 840 Ω 210 Ω 420 Ω 400 Ω 840 Ω 210 Ω 420 Ω 400 Ω ANSWER DOWNLOAD EXAMIANS APP
EXAMIANS