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The attached example project shows three different possibilities to implement automatic voltage regulators (AVR), installed along a line. The most left arrangement uses an auto transformer, where the…
The general rule is that PowerFactory provides access within DSL to variables belonging to a certain network element only if they are marked correspondingly in the Variable Selection dialog, under the…
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When a short circuit calculation is successfully executed, the user can select the following impedance values in the result box of each branch element: * Source Impedance Rs,Xs,Zs and phizs (available…
This script provides a convenient way to graphically compare simulation results within a single study case. It is particularly useful for parameter studies, event tuning, and model debugging, where a…
PowerFactory provides the event category Stop Event (EvtStop) to stop a simulation. In order to trigger such an event, a DSL model can used. The DSL model compares the threshold during the simulation…
Attached, you can find three examples showing different approaches to implement a tap changer and shunt control. Direct control via signal: The project "SIM TapControl nntapin.pfd" shows a tap…
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The attached project contains a small medium voltage network with four loads of different behaviour. The loads are supplied by a synchronous generator driven by a diesel engine. Additionally there is…
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DIgSILENT developed an EMT model of a VCB based on [1] (hereafter referred to as Greenwood’s model). Greenwood’s model simulates the voltage recovering characteristic of a VCB after contact separation…
For lightning transient studies, the line insulators are represented by voltage-dependent switches. There are different options to model the flashover during lightning transients, such as: Voltage…
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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