Power Circuit Diagram Of Dol Starter

The contactor is used for starting and stopping the motor where the green and red buttons are connected.

Power circuit diagram of dol starter. The circuit breaker is used for protection against short circuits while the overload relay protects the motor from overloading. Generally the direct online starter working can be done in two different stages namely dol starter control circuit and dol starter power circuit. Pdl 56 series full load current overload selection d o l. Wiring of the direct on line dol motor starter 1 three phase supply 230volt coil see wiring diagram.

Three phase dol starter wiring diagram with mccb. A2 14 18. What is dol starter. In this post we are going to know the details of each part of dol starter diagram all parts of the dol starter power circuit diagram and control circuit diagram are explained direct online starter or dol starter is very useful and commonly used ac starter dol starters are mainly used with up to 5 h p motors.

1 the following links are pre fitted to the starter. Three phase motor power amp control wiring diagrams. The dol starter is made of a circuit breaker or mccb or fuse an overload relay and contactor or coil. All other control and power connections have to be made by the installer.

The dol starter joints the 3 phase main wiring with the induction motor namely l1 l2 and l3 when the start switch is pressed. I dol starter wiring connection with start and stop buttons are shown in the above figure 1. All controlling of starter are controlled by this circuit. Despite this direct connection no harm is done to the motor.

When we push stop button control circuit of starter will be break at stop button and supply of relay coil is broken plunger moves and close contact of main contactor becomes open supply of motor is disconnected. 13 17 with a flying lead to be connected to overload terminal 95. Dol wiring scheme motor starting characteristics on dol starter. The 3 phase dol starter wiring diagram is shown below.

A dol starter or direct on line starter or across the line starter is a method of starting of a 3 phase induction motor in 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.