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Why Star Delta Starter Is Preferred With Induction Motor?

Answer»

Star delta starter is preferred with induction motor due to FOLLOWING reasons:

  • Starting current is reduced 3-4 times of the direct current due to which voltage drops and hence it causes less LOSSES.
  • Star delta starter circuit comes in circuit first during starting of motor, which reduces voltage 3 times, that is why current also reduces up to 3 times and hence less motor burning is caused.
  • In addition, starting TORQUE is increased and it PREVENTS the damage of motor winding.

Star delta starter is preferred with induction motor due to following reasons:


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