Star Delta Wiring Diagram
Electric motor that has a great horse power would require a large initial torque in order to fight the inertia and load inertia. large torque means it will require a large current consumption as well.
The relationship of delta or star-delta or wye-delta is at the moment still quite popular as choices for applications requiring large current consumption, to avoid excessive energy consumption, the application circuit star delta using a large current while the motor is turned on early.
In operation, the main contactor K3 and K1 star contactor will be energized initially and then after some time the contactor will be de-energized star is replaced by a delta contactor K2. When active control contactors is regulated by a timer K1T that time can be arranged. Star and delta relations will be protected from potential active at the same time using the interlock on each contact.
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