Dol Starter Image. Electromagnetic contactor which can be opened by the thermal overload relay under fault conditions. When we close the contactor the motor will get the power supply and it will start.
When we close the contactor the motor will get the power supply and it will start. The thermal overload is supplied as a separate item. When the motor draws overcurrent the thermal overcurrent relay will trip the circuit and the motor disconnect from the supply.
Generally the direct online starter working can be done in two different stages namely dol starter control circuit and dol starter power circuit.
When we close the contactor the motor will get the power supply and it will start. The direct on line starter actually consists of a contactor an mccb or circuit breaker and an overload relay for protection whenever a fault condition. Direct on line dol motor starter description the direct on line motor starter dol is designed to switch a single or three phase induction motor at rated voltage. When the motor draws overcurrent the thermal overcurrent relay will trip the circuit and the motor disconnect from the supply.
