3 Phase Motor Star Connection

The arrangement of the winding is so as to produce a rotating magnetic field.

3 phase motor star connection. In this article difference between star and delta connection are explained. A star connection has a common or a star point to which all the three terminals are connected forming a star shape as shown below. Star delta starter y d is a common type of three phase 3 phase induction motor starters generally used in low starting torque motors. The rotor of the induction motor contains cylindrical core with parallel slots that contain conductors.

Line voltage is the voltage between two phases in three phase circuit and phase voltage is the voltage between one phase to the neutral line. Star connection y system is also known as three phase four wire system 3 phase 4 wire and it is the most preferred system for ac power distribution while for transmission delta connection is generally used. In star connection the line voltage is 3 times of phase voltage. Comparison between star and delta connections.

One is known as star connection and the other one is delta connection. Motor starters are types switches either electromechanical or solid state that are designed to start and stop the motors by providing the necessary power to the motor and preventing the motor to draw excess current. Below is a given table which compares both star and delta connections showing the exact difference between star y and delta d connections. Now in the below diagrams three phase motor will rotate in two directions viz forward and reverse.

A 3 phase induction motor consists of a stator which contains 3 phase winding connected to the 3 phase ac supply. 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 motor terminal connection we have some.