Three generating units within a power plant are synchronized and supplying power to the main grid. The table below shows the respective capacities, initial loading and %droop of each generator for a grid frequency of 60 Hz. (a) (b) (c) (d) (e) Generator # Gl G2 G3 (a) (b) Q28. What will be the output of G2 if the grid frequency drops by 0.3 Hz? 47.5 MW 52.5 MW 60.0 MW 67.5 MW 72.5 MW (a) (b) (c) Q29. What will be the total output of the power plant if the grid frequency dropped from 60 Hz to 59.8 Hz? 223.9 MW 220.0 MW 200.0 MW 180.0 MW 176.1 MW Capacity (MW) 50 100 150 Total 300 MW Speed Droop 3% 4% 5% 59.91 Hz 59.82 Hz 59.76 Hz Initial Loading (MW) 20 60 120 200 MW Q30. What value of grid frequency will cause G1 output to increase from 20 MW at 60 Hz to 25 MW? 59.70 Hz 58.20 Hz

Three generating units within a power plant are synchronized and supplying power to the main grid. The table below shows the respective capacities, initial loading and %droop of each generator for a grid frequency of 60 Hz. (a) (b) (c) (d) (e) Generator # Gl G2 G3 (a) (b) Q28. What will be the output of G2 if the grid frequency drops by 0.3 Hz? 47.5 MW 52.5 MW 60.0 MW 67.5 MW 72.5 MW (a) (b) (c) Q29. What will be the total output of the power plant if the grid frequency dropped from 60 Hz to 59.8 Hz? 223.9 MW 220.0 MW 200.0 MW 180.0 MW 176.1 MW Capacity (MW) 50 100 150 Total 300 MW Speed Droop 3% 4% 5% 59.91 Hz 59.82 Hz 59.76 Hz Initial Loading (MW) 20 60 120 200 MW Q30. What value of grid frequency will cause G1 output to increase from 20 MW at 60 Hz to 25 MW? 59.70 Hz 58.20 Hz

Introductory Circuit Analysis (13th Edition)

13th Edition

ISBN:9780133923605

Author:Robert L. Boylestad

Publisher:Robert L. Boylestad

Chapter1: Introduction

Section: Chapter Questions

Problem 1P: Visit your local library (at school or home) and describe the extent to which it provides literature...

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