ESE 2021 Technical Quiz || Load Flow Analysis, Economic Load Dispatch

The Y-Bus matrix of a 4-bus system in per unit is given below,, the buses having shunt element are

An 80-bus power system has 10 generator buses. For the load flow analysis, using N-R method the size of Jacobian is

Statement 1: In Gauss-seidel method rate of convergence is very below.

Statement 2: Gauss-seidel convergence characteristic is linear.

A generating station is supplying 100 MW of power to load A & load B of  30MW and 70 MW respectively. The generator capacity is 100 MVA and inertia constant H = 6 MW sec/MVA. Due to fault, load A feeder is tripped. find the steady state frequency deviation due to time delay of 0.5 sec of governing system.

Two plants are supplying a load of 200 MW. The fuel inputs per hours of plant land plant 2 are given as

F₁ = 0.25 P₁²+35 P₁+100 Rs/hr

F₂ = 0.3 P₂² +25 P₂+120 Rs/hr

The cost of generation corresponding to economic operating schedule is