Delta Reference (Three-Phase)

Connect the unit Delta Reference (Three-Phase) to any part of a three-phase system whose windings are connected in a Delta pattern. The block provides a reference point for delta-connected windings, representing the centre of the linear voltage vector of the delta. The programme calculates the absolute voltages of the nodes with respect to the voltage at this reference point.

For example, suppose you are modelling a power transmission system consisting of a Star connected generator, a Star-Delta transformer, a Star-Delta transformer and a Star connected load. Connect the unit Delta Reference (Three-Phase) to the part of the circuit between the two transformers.

Refer to Problem solving for delta connection of transformer windings for details on the operation of a Delta three-phase system.