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The active and reactive power settings are the combined power of stator and rotor. When setting the machine to Generator on the Basic Options page, the machine is in generator-orientation and a…
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In the attached example (PhotovBattery.pfd ) two explicit modelling approaches are shown. The models we recommend for PowerFactory simulations are very similar to each other. The PV generator consists…
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The unit is machine p.u. (rated power and rated voltage of the corresponding machine). This parameter is only used in IEC short circuit calculations.…
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This value is an alternative input for the synchronous reactance. It is the permanent short circuit current in case of rated IEC conditions (1.1*Un subtransient voltage) and a direct short circuit at…
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With these parameters you can specify a frequency characteristic for r and l” (subtransient inductance) for consideringskin effect and the variation of the internal inductance. Relevant for harmonics…
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This flag indicates if the machine reactance should be calculated using all transient parameters (xdss, xds, xd, Tdss, Tds), or if just the subtransient reactance should be used for harmonics. There…
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Make sure that the used type of the cable or overhead line contains the correct value for the "Rated Short- Time (1s) Current (Conductor)" parameter in the Short-Circuit tab. The default value is 0,…
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Pre-fault voltage is determined by a factor called the c-factor, which is a multiplication factor that is multiplied by the nominal p.u. voltage to arrive at a pre-fault voltage. In the IEC…
There are two ways to calculate this kind of fault: Use a 4-wire model in which the N-conductor is explicitly modelled and the PE-wire is reduced and modelled as earth. Then when a phase to ground…
The calculation results for the admissible thermal equivalent short-circuit current are the following values:- Ithr: rated thermal Short-Circuit current with respect to 1 second (entered in the type…