Three identical steam-turbine generators G1, G2, and G3 are operating in parallel. Each generator is: 7.2 KV, 19.65 MVA, 60 Hz, 0.82 PF lagging, 4-poles, Y-connected, with synchronous reactance of 2 Q and an armature resistance of 0.05 Q. Each of the three generators has a characteristic power-frequency slope of 6.0 MW/Hz. The operator decided to run all three generators at their maximum rated power at a system frequency of 60 Hz. This will be done by adjusting the no-load frequencies of all three generators. What is the new settings of the no-load frequency of each generator? How much load can be supplied in this case? Select one: O a. fnl = 62.68 Hz, Pload = 48.24 MW O b. None O c. fnl = 62.15 Hz, Pload = 38.7 MW O d. fni = 63.12 Hz, Pload = 56.16 MW

Three identical steam-turbine generators G1, G2, and G3 are operating in parallel. Each generator is: 7.2 KV, 19.65 MVA, 60 Hz, 0.82 PF lagging, 4-poles, Y-connected, with synchronous reactance of 2 Q and an armature resistance of 0.05 Q. Each of the three generators has a characteristic power-frequency slope of 6.0 MW/Hz. The operator decided to run all three generators at their maximum rated power at a system frequency of 60 Hz. This will be done by adjusting the no-load frequencies of all three generators. What is the new settings of the no-load frequency of each generator? How much load can be supplied in this case? Select one: O a. fnl = 62.68 Hz, Pload = 48.24 MW O b. None O c. fnl = 62.15 Hz, Pload = 38.7 MW O d. fni = 63.12 Hz, Pload = 56.16 MW

Power System Analysis and Design (MindTap Course List)

6th Edition

ISBN:9781305632134

Author:J. Duncan Glover, Thomas Overbye, Mulukutla S. Sarma

Publisher:J. Duncan Glover, Thomas Overbye, Mulukutla S. Sarma

Chapter2: Fundamentals

Section: Chapter Questions

Problem 2.16P: A single-phase, 120V(rms),60Hz source supplies power to a series R-L circuit consisting of R=10 and...

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