General Discussion

Question:

I am doing a TRV study on a 345 kV reactor breaker. I noticed the EMTP example splits the reactor model in two.  Why is this?

Robert E Wilson

I want to gain confidence in my models of SiC arresters.  Does anyone have independent sources of information on this modeling in EMTP, or EMTP Version 3?

The IEC document 60071.4, named
"Insulation Coordination Part 4 - computational guide to insulation co-ordination and modelling of electrical networks", gives guidance on conducting insulation coordination studies. It proposes internationally recognized recommendations for :

• numerical modelling ;
• implementation of methods.

It includes examples.

Alain Xemard

Hello everyone,

Using EMTP in a batch mode for several case studies at once, i would like to know if that is also possible to do with the output result file. What i need is a way to get quickly (and automatically) a plot value directly stored in a file or wherever else, because trying to open the .mda file as a text file in order to scan for a particular value doesn't work (i have just read that it is written in a fortran-95 format, and i have no idea the way the binary data is stored - columns of x bytes ?).

All hints are welcome,

Dear EMTP users,

We are currently working on the next issue of the newsletter in which we hope to get good number of contributions from you about different type of studies the users are involved with. 

I hope to get your feedback and ideas on this matter.

As a student in power engineering, I find EMTP and Scopeview are good tools for simulation. I have a question about Scopview here. When I wanna export waveforms from Scopeview to jpg file, there is always a small note at the left-down corner, which is “EMTP-filename”.

How can I eliminate this note in Scopeview?

I'm working in a project and I'm presently building a network with medium voltage and low voltage cables in EMTP environment.

I'm experimenting difficulties with the data for these cables and I would like to see an example for three phase medium voltage cable and four wire low voltage cable.

Fernanda Resende

hello,

i want to used the example windmills but the network and some advice are in the 60hz frequency.

I am french and I want to simulate a network in 50hz but i don't know witch modification i must do in the div1 mask?

can you help me?

A masked three-phase three-level Statcom (IGBT) has been developed and will be available very soon to EMTP users. An interesting feature of this model is that simultaneous switching between IGBTs and anti-parallel diodes (modeled as non-linear elements) is obtained without artificial means.

A preliminary version of this model is now available in this website in the user's contributiom/Circuit section.