Three Phase 3 Phase Motor Star Delta Connection. For a given motor the fundamental difference between the star and delta connections is that the rated voltage for the star connection is 1 731 x the rated voltage for the delta connection. If a balance symmetrical load is connected across three phase voltage system in parallel then the three currents will flow in neutral wire which quantities would be same but they would be differ by 120 out of phase hence the vector sum of these three currents 0.
Now in the below diagrams three phase motor will rotate in two directions viz forward and reverse. We mostly use the terms star and delta in electrical systems while discussing three phase ac circuits and electric motors. Generally we use star delta starters for three phase squirrel cage induction motors that are normally designed to work on a delta connection.
Difference between star y and delta δ connections.
3 phase motor star delta connection inspire s g. As we have already shared the starting method of three phase motor by star delta starter with timer circuit power and control circuits. Now in the below diagrams three phase motor will rotate in two directions viz forward and reverse. In this video we explain star delta connection in 3 phase motor terminal it is very important topic because we can easily make star delta starter but in mot.
