Lecture 25 :
Analysis of Power Swings in a Multi – Machine System
Example 1 (contd..)
Solution:
Hence the network will be as shown in fig 25.4, with transmission line ‘c' connected across it.
The total impedance between the two sources is given by, ,
The swing impedance trajectory intersects the impedance line at
, which is the location of electrical center on R-X plane. From fig 25.5 it can be seen that electrical center of the swing lies on the transmission line ‘c'.
, 
, which is the location of electrical center on R-X plane. From fig 25.5 it can be seen that electrical center of the swing lies on the transmission line ‘c'.
