For an overhead transmission line supported between two level supports separated by a span distance 'l', where 'w' is the weight per unit length of the conductor and 'T' is the tension, which of the following expressions is used to calculate the maximum sag?

If a power system has a total demand of 1000 MW and a required spinning reserve of 10%, what should be the total available generation capacity?

A power system network with a base capacity of 100 MVA has a source impedance of 10% (0.1 p.u.) at a given point. The short-circuit fault level at that point is: