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Q#1 Transmission and Distribution GATE EE 1997 MCQ +2 marks -0.66 marks

Two power systems A and B each having a regulation (R) of 0.05 p.u. on their respectively capacity bases and a stiffness (damping coefficient) of 0.75 p.u. are connected through a tie-line, initially carrying no power. The capacity of system A is 2000 MW and that of system B is 3000MW. If there is an increase in load of 200MW in system A, what is the change in the steady-state frequency and power transfer?

0.0019277 p.u. and 120MW

-0.0019277 p.u. and 240MW

-0.0019277 p.u. and 120MW

0.0029277 p.u. and 120MW

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