Your search returned 17 items.
To change the tap position of a 3-winding transformer during a simulation define a parameter event (EvtParam) using the appropriate variable: e:nntap_int_h which corresponds to the tap-position HV…
Tags
This can be defined in the load-flow page of the transformer. The attached example shows how to use a phase-shift transformer to control the active power shared between several transformers…
Tags
This can be modelled using an external tap controller or a master-slave mode. First of all, both transformers shall have a type which includes settings for the tap changer. In addition, the…
Tags
1. Lines:• Losses = P(terminal i) + P(terminal j)• Losses (no load) = U(terminal i)2* B1/2 + U(terminal j)2* B1/2 ,(B1 line susceptance C1,G1 . . . )• Losses (load) = Losses - Losses(no load) 2.…
Tags
Attached you can find a PowerFactory project containing several generic models for main transformers and generators.…
Tags
The attached example shows how to model an ideal 3-phase transformer, representing the influence of the delta winding in addition to three single phase transformers with different short…
Tags
Firstly, it is considered a transformer that has a tap changer on the HV side, with a voltage source of 100 V on the HV. If the tap is on the position where the primary turns are np=50 then the…
Tags
This is possible by using a trick. Enter as the phase of the additional value an angle of phiu: phiu=180 degrees.…
Tags
The LDC is normally used in MV/LV radial networks to control the voltage at a remote end (by measuring the load current and compensating the voltage drop). A detailed explanation of the Line Drop…
Tags
The nominal current rating for the transformer is calculated as follows:Inom(HV) = Snom / SQRT3 / Unom(HV) * ratfacInom(LV) = Snom / SQRT3 / Unom(LV) * ratfacUnom(HV) = rated HV voltage of the…
Tags