Power Systems Condition for zero voltage regulation is cosφ = X/R tanφ = X/R tanφ = R/X cosφ = R/X cosφ = X/R tanφ = X/R tanφ = R/X cosφ = R/X ANSWER DOWNLOAD EXAMIANS APP
Power Systems The pu parameters for a 500 MVA machine on its own base are: Inertia, H = 20 pu; reactance X = 2 pu. The pu values of inertia and reactance on 100 MVA common base, respectively, are 4, 0.4 100, 10 4, 10 100, 0.4 4, 0.4 100, 10 4, 10 100, 0.4 ANSWER DOWNLOAD EXAMIANS APP
Power Systems Range of accelerating factor is 10.8 to 11.2 50 to 100 1.6 to 1.8 1 to 10 10.8 to 11.2 50 to 100 1.6 to 1.8 1 to 10 ANSWER DOWNLOAD EXAMIANS APP
Power Systems The skin effect shows that current density is lower at the surface of the condutor current density is more at the centre of the condutor the distribution of AC current is uniform through the cross section of the conductor current density is more at the surface of the condutor current density is lower at the surface of the condutor current density is more at the centre of the condutor the distribution of AC current is uniform through the cross section of the conductor current density is more at the surface of the condutor ANSWER DOWNLOAD EXAMIANS APP
Power Systems One Kg of natural uranium gives energy equivalent to about 100 Kg of coal. 5000 Kg of coal. 1000 Kg of coal. 10500 Kg of coal. 100 Kg of coal. 5000 Kg of coal. 1000 Kg of coal. 10500 Kg of coal. ANSWER DOWNLOAD EXAMIANS APP
Power Systems For n bus power system size of Y bus matrix is n×n (n-2)×(n-2) (n-1)×(n-1) (n-1)×(n-2) n×n (n-2)×(n-2) (n-1)×(n-1) (n-1)×(n-2) ANSWER DOWNLOAD EXAMIANS APP
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