Q34. Determine the new frequency of system AB if the tie-lie interconnecting systems AB and BC trips (a) (b) (c) (d) Q35. Determine the new frequency of system BC if the tie-lie trips 60.15 Hz 60.075 Hz 60.0 Hz 59.925 Hz 59.85 Hz (b) 60.15 Hz 60.075 Hz 60.0 Hz 59.925 Hz 59.85 Hz (d)

Introductory Circuit Analysis (13th Edition)
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ISBN:9780133923605
Author:Robert L. Boylestad
Publisher:Robert L. Boylestad
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System AB is connected to system BC via a 1000 MW tie-line. The total capacity of the online
units and the demand of system AB are 10000 MW and 8500 MW, respectively. The total
capacity of the online units and the demand of system BC are 20000 MW and 17000 MW,
respectively. System AB is importing 500 MW from system BC and all units operate with a
common governor droop setting of 5% for both systems. All generating units are operating with
sufficient spinning reserve and can respond to frequency changes.
AB System capacity=10000 MW
8500 MW
9000 MW AB
system load
(a)
(b)
(c)
(d)
(e)
T...
60.15 Hz
60.075 Hz
60.0 Hz
59.925 Hz
59.85 Hz
BC system capacity = 20000 MW
500 MW
17500 MW
Q34. Determine the new frequency of system AB if the tie-lie interconnecting systems AB and
BC trips
(a)
(b)
(c)
(d)
Q35. Determine the new frequency of system BC if the tie-lie trips
60.15 Hz
60.075 Hz
60.0 Hz
59.925 Hz
59.85 Hz
17000 MW BC
system load
Transcribed Image Text:System AB is connected to system BC via a 1000 MW tie-line. The total capacity of the online units and the demand of system AB are 10000 MW and 8500 MW, respectively. The total capacity of the online units and the demand of system BC are 20000 MW and 17000 MW, respectively. System AB is importing 500 MW from system BC and all units operate with a common governor droop setting of 5% for both systems. All generating units are operating with sufficient spinning reserve and can respond to frequency changes. AB System capacity=10000 MW 8500 MW 9000 MW AB system load (a) (b) (c) (d) (e) T... 60.15 Hz 60.075 Hz 60.0 Hz 59.925 Hz 59.85 Hz BC system capacity = 20000 MW 500 MW 17500 MW Q34. Determine the new frequency of system AB if the tie-lie interconnecting systems AB and BC trips (a) (b) (c) (d) Q35. Determine the new frequency of system BC if the tie-lie trips 60.15 Hz 60.075 Hz 60.0 Hz 59.925 Hz 59.85 Hz 17000 MW BC system load
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