Power Systems Advantages of per unit system is/are Need of transformation ratio It has units for all quantities No units for any quantity All of these Need of transformation ratio It has units for all quantities No units for any quantity All of these ANSWER DOWNLOAD EXAMIANS APP
Power Systems If transmission line parameters A and B are 0.9∠0° and 200∠90° respectively. Find the shunt reactor required to compensate the ferranti effect? 1500 Ω 3000 Ω 2000 Ω 750 Ω 1500 Ω 3000 Ω 2000 Ω 750 Ω ANSWER DOWNLOAD EXAMIANS APP
Power Systems Which of the following statement is/are true?Zn both 1 and 2 nether 1 nor 2 The neutral grounding impedance Zn appears as Zn in zero sequence equivalent circuit The neutral grounding impedance Zn appears as 3Zn in zero sequence equivalent circuit both 1 and 2 nether 1 nor 2 The neutral grounding impedance Zn appears as Zn in zero sequence equivalent circuit The neutral grounding impedance Zn appears as 3Zn in zero sequence equivalent circuit ANSWER DOWNLOAD EXAMIANS APP
Power Systems Capacitance voltage transformer ( CVT ) is used to none of these. reduce losses in a transmission line. connect instruments on the LT side. improve the power factor of the transmission. none of these. reduce losses in a transmission line. connect instruments on the LT side. improve the power factor of the transmission. ANSWER DOWNLOAD EXAMIANS APP
Power Systems In a Gauss Seidel load flow method, the number of iterations may be reduced if the correction in voltage at each bus is multiplied by Gauss constant Acceleration factor Blocking factor Lagrange multiplier Gauss constant Acceleration factor Blocking factor Lagrange multiplier ANSWER DOWNLOAD EXAMIANS APP
Power Systems Consider a long, two wire line composed of solid round conductors. The radius of both conductors is 0.25 cm and distance between their centers is 100 cm. If this distance is doubled, then the inductance per unit length. Decrease but does not halves. Doubled. Increase but does not doubled. Halves. Decrease but does not halves. Doubled. Increase but does not doubled. Halves. ANSWER DOWNLOAD EXAMIANS APP
EXAMIANS