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How modify voltage/frequency over the simulation

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Submitted by maicon_ramos on Tue, 08/15/2023 - 18:49
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Hello everyone, I am running some simulations and need to modify the voltage and frequency at the POI to perform some tests. These values must be modified over the simulation. I appreciate any tip regarding the best approach to do this. With kind regards.

Converge problem in a syncronous machine

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Submitted by mhousset on Wed, 08/02/2023 - 16:47
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Hi, I have problem of converge in a syncronous machine when I add a voltage source with impedance, that represent a external grid. When add a external grid the syncronous generator did not converge, but when the external grid is exclude there is no more converge problem. Help pliss.

How to model a concrete pole (14m) for a distribution line?

Submitted by Hunter Martin Manana on Wed, 06/28/2023 - 23:28
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I am doing a study on the lightning performance of a 33kV distribution line. I have watched videos but they are all based on transmission lines. I would like to know how to model a concrete pole 14m in length. I have been able to model the insulators, conductors, earth wire, and surge arresters

Non-Linear Inductance on Delta winding connection

Submitted by Neriton on Fri, 05/26/2023 - 10:23
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I want to adapt the example present in ~EMTPWorks\Examples\ApplicationCases\Transformer_data\TestExample\TransformerModel in the case of a magnetizing branch connected in the delta connection of the transformer (tertiary side).

The "L nonlinear" block is used to convert the I-V curve to I-phi curve.

1) However, I do not know if I have to use the phase-to-ground voltage for the base (as in the example) or the phase-to-phase voltage.

Low-severity error has been dectected.

Submitted by aksalsero on Wed, 03/22/2023 - 16:57
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I'm getting an Internal Error when launching EMTPWorks version 4.2.1: A low-severity error has been detected, code 285210. Serious data corruption is unlikely, but the operation may not have completed successfully. If the message is serious fine, I would like to suppress for end users so they don't panic.
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