### How can I find large result objects?

Working a lot with PowerFactory can lead sometimes to quite large result objects which occupy space on the hard disc. The attached Python script can list for you the total size of each project to help…

### How do you model the bonding of cables (isolated, single and double bonded)?)

There are various possibilities to "bond" the sheath / metallic screen (MSC). The bonding corresponds to the earthing of the sheath / MSC. There are different bonding configurations for cables:  …

### How do you model frequency dependent network equivalents (FDNE) for harmonic analysis?

The full network model might not be available for the harmonic analysis or the full model has to be reduced for performance reasons. Examples are: Harmonic Analysis for a power plant (e.g. wind farm /…

### Do you have an EMT ferro resonance example?

The ferroresonance phenomena is a non-linear series resonance that may result in transient currents of high amplitude and high harmonic content. For medium voltage networks the following system…

### How can I energise the electrical grid and simulate the active power load pick up with the voltage source converter?

The attached project shows the energisation of the electrical grid and the active power load pick up with the voltage source converter (VSC) in EMT simulation. The DC capacitor is charged through a…

### How do you model a variable resistance to consider soil ionisation in lightning transient EMT simulations?

Variable resistances can be modelled with the ElmSind. The grounding impedance represents a single phase model. Thus, the ElmSind is modelled as single phase element. The single Rin of the ElmSind is…

### How do you record RMS signals such as voltages and currents in EMT simulations?

In an EMT simulation, the result variables are recorded as instantaneous values. In order to record RMS signals such as voltages and current, the instantaneous have to be converted to RMS values. The…

### How can I model event triggered time characteristics?

Using the measurement file to read time series will give you a simulation time referenced value. An event based shift of this curve is not possible. The attached project shows another approach on…

### Do you have an EMT example where the current is ramped up using a current source (ElmIac))?

An example is attached, where the current source is controlled via a DSL block. Three different possibilities are included in the example.Import the project in PowerFactory and run an EMT Simulation.…

### How can I display various relay parameters in my time-overcurrent plot?

By using the option “Add Label with definable Format” out of local menu bar, it is possible to insert a user defined text box in the time-overcurrent plot. Normally there is a pre-defined format…
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