Formidable Dol Connection For 3 Phase Motor

The thermal overload is supplied as a separate item.

Dol connection for 3 phase motor. Working of dol starter. The direct on line motor starter dol is designed to switch a single or three phase induction motor at rated voltage. Despite this direct connection no harm is done to the motor.

A wiring diagram of a dol starter is. There are two types of circuits in the dol starter diagram given above. Contactors are mainly used to control machinery which uses electric motors.

The dol starter connects the 3 phase voltage supply i e. Tutorial videos and education videos available this channel channel name rselvam66. The control circuit and the power circuit.

The contactor has three main no contacts and lesser power rated contacts named as auxiliary contacts no and nc used for the control circuit. Part number enclosure type coil voltage current rating max. A dol starter also known as a direct on line starter or across the line starter is a method of starting a 3 phase induction motor.

1 2 2kw motor with a flc of 5 amps 415volts. It comprises an enclosure in steel or plastic a contactor start contact link wires and stop start buttons. A contact is conducting metal parts which completes or interrupt an electrical circuit.

The current path via contactor coil will break when the stop button is pressed and due to this the contactor contacts drop out thus breaking the. R phase y phase and b phase to the induction motor terminals. 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.