4/1/2024 0 Comments Power world simulator sbase![]() ![]() ![]() Read this file for more information about PowerWorld.Īs Andy aka wrote, there is x" (xd") which is sub-transient reactance in d-axis of the generator and it is the basis machine parameter and should be allowed to enter (I can't believe it is not). The voltages in all buses should be around 1-pu. I already simulate your system, and I think it is easy. What is your tap ratio in the transformers side? Remember, the typical value for the tap-ratio is between 0.9 and 1.1. This is just for the first line, you can do the same for the other.Īlso, you can enter the positive impedance in the "Parameter" window, and the zero impedance can be entered separately in the "Fault Info" window. The positive/zero sequence impedance can be found by dividing the given values by the the \$ Z_ \$, and then multiply it with the line length: Also, you already have the line lengths in km. Look at the following image:įor the second part, you are wrong! Why did you put the data in Ohm/km? You should put it in per unit. You can enter these data in the "Fault" window of the "Generator Information for Current Case". \$ x^"\$ is the internal positive reactance.\$x_2\$ is the internal negative reactance.Maybe this will help you:įirst, the generator ratings are given as: I will try to answer all of your questions.
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