32.3 : 输电线路：暂态运行

Sending an email from a computer is analogous to an electrical signal moving along a single-phase lossless line.

The Bewley Lattice Diagram aids in understanding what happens when this signal encounters obstacles or changes in the line.

It graphically represents time in transient time units and line position, with diagonals illustrating traveling waves.

When waves encounter an obstacle, reflected waves are calculated by multiplying the incoming wave by the reflection coefficient.

The voltage at any point on the line can be determined by summing all the terms directly above that point in the diagram.

For instance, when a signal comes across a junction of two lossless lines, it experiences reflection along the original line and refraction onto the new line.

Equations for the voltage and current at the junction can be written to calculate the reflected and refracted signals in terms of the incoming signal.

This process can be extended to junctions of more than two lines, enabling the understanding of complex networks of transmission lines.