Dol Starter Connection With Motor. In a dol starter an induction motor is connected directly across its 3 phase supply and the dol starter applies the full line voltage to the motor terminals. In this article we are going to see the dol starter connection and wiring diagram including thermal overload relay indication circuits.
The green button connects the terminals and closes the circuit while the red button disconnects the terminals and breaks the circuit. The direct on line starter usually consists of a contactor circuit breaker and an overload relay for protection against any damage. The direct on line motor starter dol consist a mccb or circuit breaker contactor and an overload relay for protection.
Once the motor obtain full speed the tapping windings are short circuited and line voltage is directly applied to the motor.
Auto transformer connection always the motor connected in delta connection. The green button connects the terminals and closes the circuit while the red button disconnects the terminals and breaks the circuit. The kind of device used for starting the induction motor is called the direct on line starter dol. Circuit diagram for dol starter with hold on contact one is a conventional type and another one is the industrial type.
