DOL (Direct online) and Star Delta Starter । Power and Control wiring (Detail explanation)

hello everyone today once again we will learn the detailed explanation with power and control wiring of the EOL and star Delta starter Direct online method is used for smaller Motors up to 5 HP so that the electricity can Spike without tripping the supply DOL is simply an on and off switch with red and green push button

but usually in the form of a contactor the power is turned on and the motor starts a thermal or electronic overload relay is often used as protection for the motor here you can see the power wiring of DOL method now we are doing control wiring for control wiring we connect phase to NC terminal of overload relay then from

NC terminal of overload relay we connect control wire to NC stop push button and then connect to no start push button from an O start push button we connect to a one terminal of contactor in order to provide holding we connect from NC stop push button to number 14 and O terminal of the contactor

then we make a loop from an O start push button and connect to number 13 no terminal of contactor and finally we connect neutral to A2 terminal of contactor here full wiring has completed and the motor will work while we push the start push button and it will stop when we push the stop

push button Delta in the star Delta starting method the wiring connection from the power supply source to the motor is connected from the Star to the Delta connection the motor is started in a star configuration once motor is up to 80 of full speed then it is transferred to the Delta configuration this allows the full voltage to be

applied to the motor during its running to get the full torque output this method can reduce the starting current Demand by 30 percent this is the internal winding of a three-phase motor we can operate this motor in Star Delta method the first set of terminal name is U1 V1 and W1 and the second set terminal name