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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…
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…
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…
Current limiting fuses can be modelled in PowerFactory, starting from the version 2025. They are modelled using the already existing fuse model (RelFuse) and fuse type (TypFuse). The effect can only…
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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…
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…
One of the most common reasons for the non-selective tripping of the transformer differential protection are the incorrectly set up adapters. In order to accommodate for different voltage levels,…
You may find the simple grid model with two terminals and a power transformer, protected by a differential protection in the attachment of this FAQ. Here, an emphasis is on the way the adapters had…
Currently, there are no relays in the global DIgSILENT Library that support large number of CT inputs out of the box, needed for the busbar differential protection. The user can adapt one of the…