3 Phase Star Wiring Diagram. This configuration of voltage sources is characterized by a common connection point joining one side of each source. Single phase wiring diagrams always use wiring diagram supplied on motor nameplate.
But high load 3 phase motor we use the star delta starter for motor. Now in the below diagrams three phase motor will rotate in two directions viz forward and reverse. Star connection line and phase currents.
The star connection is shown in the diagram below.
Star delta y δ 3 phase motor starting method by automatic star delta starter with timer. Three phase motor connection star delta without timer power control diagrams. Let us consider the system of the figure 4 which is balanced y y three phase four wire system if the source voltages are given by 1. Considering the above figure the finish terminals a 2 b 2 and c 2 of the three windings are connected to form a star or neutral point.
