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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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Secondary arc currents occur after a fault is cleared (typically by circuit breakers) due to inductive or capacitive coupling with healthy circuits. Such currents are often experienced in long…
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Changing the colour, line style or elements in an existing plot via Python can be done by modifying the Data Series object of a plot. The Data Series object contains the information for all shown…
The contents of result objects (ElmRes) are exported via the Result Export command (ComRes). This command offers various options: Export type (e.g. csv, COMTRADE, txt, databases) Option to export all…
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It is possible to model a center tapped, single phase transformer in PowerFactory for extended distribution networks with long single phase lines. The attached example shows a possible implementation.…
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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…
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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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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,…
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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…
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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…
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