___________________________________________________ Principles of Transmission Lines
3-71. At T7, the voltage at the various points on the line is as follows:
At the generator: -100 V
At point W: 0 V
At point X: +100 V
At point Y: 0 V
3-72. If these voltages are plotted along the length of the line, the resulting
curve is like the one shown in figure 3-22, view A. Note that such a curve of
instantaneous voltages resembles a sine wave. The changes in voltage that
occur between T7 and T8 are as follows:
At the generator: Rise from
-100 V to -70 V
At point W:
0 V to -70 V
Drop from
At point X:
Drop from
+100 V to +70 V
At point Y:
Rise from
0 V to +70 V
Figure 3-22. Instantaneous Voltages along a Transmission Line
3-23
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