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If the machine in Problem (A 13.8-kV, 50-MVA, 0.9-power-factor-lagging, 60-Hz, four-pole Y-connected synchronous generator has a direct-axis reactance of 2.5 \Omega , a quadrature-axis reactance of 1.8 \Omega , and an armature resistance of 0.2 \Omega . Friction, windage, and stray losses may be assumed negligible.) is running as a motor at the rated conditions, what is the maximum torque that can be drawn from its shaft without it slipping poles when the field current is zero?

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