Dol Starter Power Circuit. 1 to start the motor start push button is pressed. The dol starter cannot reduce the voltage or current during starting of the motor like other starters.
Direct On Line Dol Motor Starter Electrical Circuit Diagram Basic Electrical Wiring Electronic Engineering from in.pinterest.com
The direct on line motor starter dol consist a mccb or circuit breaker contactor and an overload relay for protection. Typically the contactor will be controlled by separate start and stop buttons and an auxiliary contact on the contactor is used across the start button as a hold in contact. 1 to start the motor start push button is pressed.
The power circuit is responsible for connecting power to the motor and control circuit is responsible for controlling the starter circuit.
The start button is sometimes called as push button because when this button is released the control circuit of dol starter still provide the power supply via hold on contact. Dol starter of three phase induction motors control and power circuit consist mcb or fuse unit which connected in series with the supply. The power circuit is responsible for connecting power to the motor and control circuit is responsible for controlling the starter circuit. When the motor draws overcurrent the thermal overcurrent relay will trip the circuit and the motor disconnect from the supply.
