6- Sketch torque/slip charac QA 13.8 kV, 10 MVA, 0.8 power factor lagging, 60 Hz, two pole, star connected steam turbine

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6 Sketch Torque Slip Charac Qa 13 8 Kv 10 Mva 0 8 Power Factor Lagging 60 Hz Two Pole Star Connected Steam Turbine 1 (38.06 KiB) Viewed 46 times

6- Sketch torque/slip charac QA 13.8 kV, 10 MVA, 0.8 power factor lagging, 60 Hz, two pole, star connected steam turbine generator has a synchronous reactance of(1.2) 2 per phase and an armature resistance of(1.5) per (25) Marks phase. This generator is operated in parallel with large power system (infinite bus). Do as required for the following: 1. Plot the phasor diagram and calculate the internal induced voltage at rated condition? 2. What is the torque angle for each generator at rated condition? 3. If the field current is constant, what is the maximum power output from this generator? 4. How much reserve power or torque doers this generator has at full load? 5. At maximum absolute power possible, how much reactive power this generator be supplying or consuming? Sketch the corresponding phasor diagram (assuming field current is still unchanged)? on poles three-phase, 50 Hz alternator with two noil span is 150 the flux