Circuit Diagram For Dol Starter With Hold On Contact
23+ Circuit Diagram For Dol Starter With Hold On Contact Pics. The direct online or dol starter employs full voltage or across the line starting technique where the motor is directly connected to full voltage through mccb or circuit breaker and relays for overload protection. A direct online starter consists of two the dol starter comprises an mccb or circuit breaker, contactor and an overload relay for motor to supply lines, and the fourth contact is hold on contact (auxiliary contact) which energizes the contactor.
Motor starters are of many types however the scope of this plc tutorial is confined to simple motor starter.
The wiring or connections of dol starter includes mainly four parts such as main contact, normally open contacts. Such a large starting current produces an excessive voltage drop in the line which supplies power to the motor. In direct on line starting the starting current may be as large as ten times the full load current, and the starting torque is equal to full load torque. Dol starter control circuit diagram consist components like main power contactor, start button, stop push button and.
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