12. A 60 MVA, 69.3kV, three-phase synchronous generator has a synchronous reactance of 15 ohms/phase and negligible armature resistance. The generator is delivering rated power at 0.8 power factor lagging at the rated terminal voltage to an infinite bus bar. What is the maximum three-phase power that can be generator can deliver before losing its synchronism? a. 288 MW b. 300 MW c. 254 MW d. 348 MW 13. Referring to problem 12, if the generator is delivering 48 MW to the bus bar at the rated voltage with its field current adjusted for a generated emf of 46 kV per phase. Determine the armature current a. 564.282 35.12° A c. 547.472 - 43.06° A b. 585.352 23.29° A d. 530.24 - 49.10° A e 1 of

Calculate the per unit impedance of a three-phase generator with a power rating of 900 KVA and voltage rating of 33 KV. The generator has an armature resistance of 40 Ohms per phase and a synchronous reactance of 140 Ohms per phase.

Energy Question-1) Three identical synchronous generators were connected in parallel and the idle frequency values ​​of each generator were set to 54 Hz. The frequency - power characteristic slopes of the first and second generators are 5.3 MW/Hz and the slope of the third generator is 3.9 MW/Hz. When these three identical synchronous generators feed a load together, the system frequency becomes f=51.7 Hz. According to this;a-) Calculate the active power value that the first generator will provide to the load.b-) Find the active power that the second generator will provide to the load.c-) Find the active power that the third generator will provide to the load.d-) Calculate the power of the load.(All values ​​in options a, b, c, and d in this Question will be entered as two digits after the comma.) NOTE: If the information in the text and the photo is different, please solve the question using the information given in the photo. Help me please... Thank you so much.