Dol starter diagram

Question

Dol starter diagram

Accepted Answer

A Dol starter diagram is used to start and stop a motor by providing direct online starting.

Dol starter consists of a contactor, overload relay, start and stop push buttons, and power supply connections.
When the start button is pressed, the contactor closes and supplies power directly to the motor.
The overload relay protects the motor from overheating by tripping if the current exceeds a set limit.
The stop button opens the contactor and stops the motor.
Dol starters are commonly used for small to medium-sized motors.
Example: In a Dol starter diagram, the contactor is typically represented by a coil symbol and the overload relay by a thermal element symbol.