### How can I perform network studies with one breaker pole open?

PowerFactory is able to calculate single-phase interruptions within the short-circuit calculation (complete method) and in the transient simulation. Another option is to connect a three phase…
Tags

### How can I switch on and off a switch or element during a dynamic simulation?

Refer to the 2 example projects:The first example 'EvtSwitchExt' shows, how to call a switch event (EvtSwitch) out of a DSL model (general model). In this example the switch events are predefinided in…
Tags

### How can I model the arc voltage characteristic of a circuit breaker?

The arc voltage of the circuit-breaker can be modelled as a nonlinear resistance. Therefore we connect a resistor (series impedance)in series with the circuit-breaker. Both the real and imaginary part…
Tags

### Do you have an example for unbalanced/unsymmetrical distribution system modeling?

PowerFactory fully supports all kinds of unbalanced  power system models:- 3phase, 3 wire (loads in Delta, can be unbalanced, lines can be unbalanced)- 3phase, 4 wire (neutral is modelled…
Tags

### How can I model a vacuum circuit breaker?

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…
Tags

### How can I simulate the line energisation using pre-insertion resistors?

The following model provides an example of a long overhead line which is energised via pre-insertion resistors. The overhead line is modeled using a distributed parameters model having the geometry of…
Tags

### How do I model a low voltage (LV) circuit breaker (ACB, MCCB or MCB) relay (release)?

The modelling of LV circuit breaker releases is very similar to the modelling of HV circuit breaker relays. The main difference is that although a CT element is selected (StaCt), this element should…
Tags

### Do you have an example for high voltage circuit breakers for transient recovery voltage (TRV) analysis?

The objective of the attached project is to simulate and analyse the transient recovery voltage (TRV) on high voltage circuit breakers. The circuit breaker itself is modelled by means of a breaker…
Tags

### Do you have an example of an anti-islanding protection system for a renewable generator based on a Full Scale Converter System?

The attached project demonstrates the behaviour of a full-scale converter based system while subjected to an islanding event. The converter is implemented in PowerFactory using a static generator…
Tags

### What are the options available for breaker/switch open actions in RMS and EMT simulation?

In dynamic simulations, a breaker/switch can be opened via the Switch Event (EvtSwitch). The Switch Event can be parameterised in order to configure the opening process. Furthermore, the breaker…
Tags