I'm simulating a step voltage applying on a transmission line for my high-voltage course. I'm very confused that the system seems to be time-varying. This is my circuit:
I want to simulate the situation when a step voltage is applied on a transmission line(open circuit). But the wave differes with "step time" of the step block varying.
When "step time" is 0.004:
But when "step time" is 0.005:
I am very confused and want to know why.
This is the parameters of the line: