Question

XTR-0.10 B12 X12-0.20 B21 V= 1-0 x,-0.30 X23-0.20 B13 X13-0.10 B22 Fig. 1. Single-machine infinite bus system (Simple system-I) 1. The synchronous generator in Fig.1 delivers 0.8 p.u. real power at 0.85 power factor leading at voltage at infinite bus (1.0 р.u. voltage). Determine a) The real and reactive power output of the generator b) The generator internal voltage c) An equation for the electrical power delivered by the generator as a function of 8. d) For a three-phase-to ground bolted short circuit at F, determine the power delivered by the generator as a function of 5 e) The fault is cleared by the opening of circuit breakers B13 and B22 simultaneously, find the power delivered by the generator as a function of f) Draw the power angle curves for post-fault, during the fault and pre-fault conditions and determine the critical clearing angle

Answer 1

Solution- Siven thatthe Soluop 20 D 812 do xy=0:30 O-S 0.12. 0-8 0.8S 0.22p. = 140, 4161-o.astYA = 0·케2288十丁0-416

0-8D X0- 9412 X0-093+0 9412 XD-3 = 0.0344 +D-2823 = 0.31646 p.u. Cb) Show that the general intenal vôltage 8D p = (-6346 Sre (d for a ound sin g 0-6 0.6 0-6 c qt6 sing b-