Dol Starter Diagram

The contactor connection with thermal overload relay and the motor connection with overload relay is shown.

Dol starter diagram. The connection of contactor can be done among relay coil supply voltage as well as thermal overload. The wiring of direct on line control circuit starter is following. I having 2 hp motorpump by using dol starter in starter again and again relay was damaged the realy setting value is 2 7 its range is 2 5 4 0the motor we are using for chemical water draining. A single phase dol motor starter can be designed using the same components as shown in following diagram.

July 19 2019 february 24 2012 by electrical4u. The starting current is not so very high and these motors can withstand starting current without any starters. The r y b is the three phase 380 volts supply. In the above dol starter diagram.

And if you want to learn about the dol starter wiring for single phase then read the below post. Wiring diagram of dol starter. A dol starter or direct on line starter or across the line starter is a method of starting of a 3 phase induction motor. Then read the below article and learn from simple dol starter wiring diagram.

And the normally open and normally close push button shown. Dol starter control diagram three phase. Dol staretrs are used in case of small rating motors having less than 05hp motors. To use three phase electricity a motor needs windings spaced 120 degrees apart.

We have to use all 3 poles of the overload relay otherwise the imbalance due to the current flow in only 2 of them will cause unnecessary tripping. All controlling of starter are controlled by this circuit. The coil of the contactor is 380 vac. I checked continuity to l l l body its ok but when i started the motor in fraction of seconds the relay.

Dol starter direct on line starter diagram working principle. 1 the following links are pre fitted to the starter. Wiring of the direct on line dol motor starter 1 three phase supply 230volt coil see wiring diagram. Dol starter control diagram.

Dol starter control circuit diagram consist components like main power contactor start button stop push button and overload relay is connected in series this circuit is called control circuit of dol motor starter. The l1 contactor is connected from normally open no to r phase using mccb. All other control and power connections have to be made by the installer. 13 17 with a flying lead to be connected to overload terminal 95.

A2 14 18. In the above three phase dol starter wiring diagram. What is dol starter. Single phase dol starter wiring diagram.