Power Systems Load frequency control is achieved by properly matching the individual machines turbine inputs. generator ratings. generated voltages. reactive powers. turbine inputs. generator ratings. generated voltages. reactive powers. 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
Power Systems The specific speed ( NS ) of turbine is given by none of these. P√( N ) / H3/2. N√( P ) / H1.25. N√( P ) / H2/3. none of these. P√( N ) / H3/2. N√( P ) / H1.25. N√( P ) / H2/3. ANSWER DOWNLOAD EXAMIANS APP
Power Systems A 3-phase transmission line has its conductors at the corners of an equilateral triangle with side 3m. The diameter of each conductor is 1.63 cm. The inductance of the line per phase per km is 1.043 mH 1.182 mH 1.232 mH 1.093 mH 1.043 mH 1.182 mH 1.232 mH 1.093 mH ANSWER DOWNLOAD EXAMIANS APP
Power Systems Which of the following represents the transmission line positive sequence reactance 2Xs + Xm Xs - Xm Xm - Xs Xs +2 Xm 2Xs + Xm Xs - Xm Xm - Xs Xs +2 Xm ANSWER DOWNLOAD EXAMIANS APP
Power Systems Keeping in view the cost and overall effectiveness, the following circuit breaker is best suited for capacitor bank switching? Vacuum CB. Air blast CB. SF6 CB. Oil CB. Vacuum CB. Air blast CB. SF6 CB. Oil CB. ANSWER DOWNLOAD EXAMIANS APP
EXAMIANS