Problem 3 A 80-MVA, 25-KV, three-phase synchronous generator has a synchronous reactance of 11.5 per phase and negligibl

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Problem 3 A 80 Mva 25 Kv Three Phase Synchronous Generator Has A Synchronous Reactance Of 11 5 Per Phase And Negligibl 1 (123.38 KiB) Viewed 18 times

Problem 3 A 80-MVA, 25-KV, three-phase synchronous generator has a synchronous reactance of 11.5 per phase and negligible armature resistance. It supplies a load which is connected to an infinite bus as shown in Fig. 3. E V jx, 어 Ia Fig. 3 A synchronous machine connected to infinite bus 1) Determine the magnitude of the generated emf per phase and the power angle 5 when the generator is supplying a 50-MW load at 0.82 power factor lagging at 95% of the rated terminal voltage. 2) Given that the generator is operating at the excitation voltage of Part (1), determine the maximum steady-state power which the machine can deliver without losing synchronism. 3) Find the armature current corresponding to the generator maximum power in Part 2.