Power System Transients, 2nd Edition

170 Power System Transients

at the middle, and Figure 2.30b at the 1/4 length from the sending end. In

Figure 2.30b, the highest overvoltage of 1.53 pu occurs at the fault point and

its symmetrical position to the center of the line, and the overvoltage distri-

bution is at within the two points. In Figure 2.30a, the highest overvoltage

of 1.56 pu occurs at the center, and the overvoltage decreases rapidly toward

both ends of the line. This observation demonstrates that the region of the

line where the overvoltage is higher than a certain level is wider in the case

of the fault occurring at a point apart from the line center, while the highest ...