Dol Starter Control Diagram

In this article you will learn about dol direct on line starter control diagram.

Dol starter control diagram. 13 17 with a flying lead to be connected to overload terminal 95. The dol starter is made of a circuit breaker or mccb or fuse an overload relay and contactor or coil. The starting current is not so very high and these motors can withstand starting current without any starters. 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.

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. One wiring called main wiring which is used for motor. Wiring of the direct on line dol motor starter 1 three phase supply 230volt coil see wiring diagram.

Dol wiring scheme motor starting characteristics on dol starter. 1 the following links are pre fitted to the starter. 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. All controlling of starter are controlled by this circuit.

What is dol starter. The contactor is used for starting and stopping the motor where the green and red buttons are connected. A2 14 18. 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.

Dol starter control diagram. All other control and power connections have to be made by the installer. In three phase dol starter wiring the two types of wiring done. And one wiring is called controlling wiring.

Despite this direct connection no harm is done to the motor. Thus there is no need to reduce the applied voltage to control the starting current. The wiring of direct on line control circuit starter is following. The circuit breaker is used for protection against short circuits while the overload relay protects the motor from overloading.

The connection of contactor can be done among relay coil supply voltage as well as thermal overload.