3 Phase Motor Connection With Star Delta Starter. The main circuit breaker c b q1 serves as the main power supply switch that supplies electricity to the power circuit. Star delta starter starts motor by reducing the initial current.
The rotor of the induction motor contains cylindrical core with parallel slots that contain conductors. The main circuit breaker q1 connect or disconnect the main three phase supply l1 l2 and l3 to the motor terminal t1 t2 and t3. A 3 phase induction motor consists of a stator which contains 3 phase winding connected to the 3 phase ac supply.
Star delta starter wiring diagram.
Since winding is connected in star hence each phase will get 3 times less than the line voltage i e. In star delta starting an induction motor is connected in through a star connection throughout the starting period. The major applications of motors with star delta starters are fans pumps centrifugal chillers in acs etc. Industrial star delta starter for a 3 phase induction motor.
