
417Electric Power Production and Transmission Simulation
For the signal SwTr, the switching order is the same as the one followed for multi-
winding transformer (Chapter 2).
The described model simulates operation of the delta-hexagonal transformer in
a rather detailed manner, but there are other types of phase-shifting transformers;
in order to use them the developer has to elaborate the model considered for use.
At the same time, it is necessary to estimate quickly the effect of putting of such a
transformer in the network. For this purpose, the model of IM with wounded rotor
can be used. This idea is used in model6_26, which is a modicatio ...