The figure shows the single line diagram of a single machine infinite bus system.
The inertia constant of the synchronous generator H=5 MW-s/MVA.
Frequency is 50 Hz. Mechanical power is 1 p.u. The system is operating at stable quilibrium point with rotor angle
δ=30∘. A three phase short circuit fault occurs at a certain location on one of the circuits of the double circuit transmission line. During fault, electrical power in p.u. is
0.23sinδ. If the value of
δ at the instant of fault clearing is
45∘ then,dδdt=_____radians/sec.
- 3.76