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In general two different options exist:1. An explicit description of the motor driven machine (MDM) is defined.In this case a composite model connects the asynchronous machine with the load…
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- EMT SimulationThe model used permits the direct modification of the ignition angle (alpha).- RMS SimulationThis model is slightly different, as the application of a soft starter does not allow a…
An external grid can have different phase impedances modelled by using a line element defined by a tower type. The tower type is configured such that the user can enter the 3x3…
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For load flow calculation, static analysis, the three phase voltages can only be altered by specifying the amplitude and the phase lag in the positive, negative and zero sequence system of the voltage…
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A series reactor can be used to connect buses that operate at different voltage levels. A series reactor is used to model an impedance to connect the different voltage levels (220kV to 230kV). The…
A Technical Reference for the doubly fed induction machine is available in the PowerFactory Help menu under Technical Reference.…
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In the attached model, you will find how to model the capacitive and inductive couplings of overhead lines. The example includes study cases that demonstrate: Single line model to study the behaviour…
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The polarity field is used to correct or adjust the proximity of the ends of coupled lines in the case that they have been incorrectly defined. When the user draws lines in PowerFactory, the i and j…
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A neutral earthing compensator (NEC) or neutral earthing resistor (NER) is modelled in PowerFactory as an element that needs no type. The rated voltage, rated current, zero sequence and zero…
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For RMS simulations the load type has to be set to 100% dynamic load, this means constant impedance Z. Additionally in the RMS dialogue of the load type the voltage dependency of P and Q can be set.…