Thanks ,the tap changer has a motor and push button for up and lower the tap changer plus manual lever, I want to modify it to Auto by installing AVR by using same motor and wires.
> The tap changer has a motor and push button for up and lower the tap
> changer plus manual lever, I want to modify it to Auto by installing
> AVR by using same motor and wires.
>
> Any ideas about this?
If the transformer has an motorized on-load tap changer, then using a AVR to automatically control the tap position is possible. Reinhausen has some good tap controllers, TAPCON is one to name.