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GATE Electrical Engineering (EE) 2017 Shift 1 Solved Paper

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Question : 65

Total: 65

The figure shows the single line diagram of a power system with a double circuit transmission line. The expression for electrical power is 1.5 sin δ, where δ is the rotor angle. The system is operating at the stable equilibrium point with mechanical power equal to 1 pu. If one of the transmission line circuits is removed, the maximum value of δ, as the rotor swings, is 1.221 radian. If the expression for electrical power with one transmission line circuit removed is P_max sin δ, the value of P_max, in pu is ______. (Give the answer up to three decimal places.)

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