The control circuit and the power circuit.

Dol starter diagram three phase.

A dol motor starter contains protection devices and in some cases condition monitoring. The contactor connection with thermal overload relay and the motor connection with overload relay is shown. A wiring diagram of a dol starter 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. And if you want to learn it in image type diagram. In the above 3 phase dol starter wiring diagram all connection shown.

The r y b is the three phase 380 volts supply. In the below diagram the mccb is not shown the three phase supply comes from mccb circuit breaker. Three phase dol starter wiring is most used connection for controlling a three phase motor. All other control and power connections have to be made by the installer. Thanks for watching this video please subscribe this channel for more videos how do 3 phase star delta motor connection diagramhttps youtu be mlm6aywchh4. There are two types of circuits in the dol starter diagram given above.

In the above dol starter diagram. Which is very simple to understand the complete connection. In this post you will see the simple dol starter wiring diagram. 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. What is dol starter. 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.

Despite this direct connection no harm is done to the motor. In the diagram you will see the three pole mccb circuit breaker molded case circuit breaker a magnetic contactor a motor over current thermal overload protection relay. The coil of the contactor is 380 vac. 1 the following links are pre fitted to the starter. And nc off switch and no on switch. Wiring of the direct on line dol motor starter 1 three phase supply 230volt coil see wiring diagram.

The dol starter connects the 3 phase voltage supply i e. Dol starter wiring diagram for three phase motor to wire a 3 phase motor the first thing to wire is a circuit breaker which is a disconnect and connecting point then we will get the supply from the circuit breaker and connect the supply to the contactor or starter and then to the overload relay. In which the three phase induction motor connection shown and all the direct online starter wiring shown with simple steps. 13 17 with a flying lead to be connected to overload terminal 95. We connect the circuit breaker contactor and overload relay in series between electrical supply and motor as shown in the below diagram. A2 14 18.