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How can I debug my relay model during static calculations?

Debugging a relay model can be advantageous when having trouble with the model. There are multiple cases where you have to debug a relay model. For example the relay does not trip and you want to find…
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Do you have an example of a detail modeled current transformer?

In attached example (Detailed Model of a CT) a detailed model of a current transformer is presented. By using the EMT simulation saturation of the current transformer is represented in time domain.…
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How can I create relay elements in my project automatically?

Attached to this FAQ a project with a simple script can be found. Script reads external csv file and creates in total 121 relay device automatically according to the content of the csv. csv file is…
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Is it possible to automatically create time distance plot for all in network available paths?

Yes, this task can be done by using Scripts. In attachment a pfd file can be found containing simple Python script, located in local Library/Scripts folder. Script is performing following steps: -…
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Do you have an example of short circuit trace being performed via a script?

In the attachment to this FAQ you can find a PowerFactory project with a Python script, located in the Library/Scripts folder. The script performs the following steps: - Accesses short circuit trace…
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Do you have an example of a script reading and writing settings in a Relay?

In attachment to this FAQ you can find a PowerFactory project with a script inside of Library/Scripts folder. Script performs following steps: - Collects all two winding transformers, - Loops through…
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Do you have an example of a script that automatically creates a path?

Attached to this FAQ a PowerFactory project can be found with a script located inside of the Library/Script folder. The script automatically creates a path between each two busbars that are connected…
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How can I define a core balance current transformer?

A core balance current transformer measures the sum of the three phase currents and can be defined as follows: Create the current transformer as usual (refer to the user manual of how to create a…
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What can I do if a relay model or specific relay functionality is missing from the DIgSILENT library in PowerFactory?

The relay model library in PowerFactory does not cover every existing or historical relay on the market, nor every possible configuration. The diversity in relay models and their functionalities is…
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Do you have relay models that can take inputs from multiple CTs?

We offer multiple relay types in our global DIgSILENT Library that can take inputs from multiple CTs. Those that can take more than 3 CT inputs are listed below: Siemens 7UT6xx, ABB RET 670, Gec…
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