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Engineering Projects


In this project " AUTOMATIC COIL WINDING MACHINE" main objective is to bring out a machine which can implement the idea of automation in Transformer winding or any type of coil windings .Here in real time application let us consider Transformer Manufacturer were the winding is important criterion. A transformer changes (transforms) an alternating voltage from one value to another.

It consists of two coils, called the primary and secondary winding, which are not connected electrically. The windings are either one on top of the other or are side by side on an iron, iron-dust or air core.

A transformer works by electromagnetic induction: a.c. is supplied to the primary and produces a changing (alternating) voltage in the secondary. It is important that as much as possible of the magnetic field produced by the primary passes through the secondary.

A practical arrangement designed to achieve this in an iron-cored transformer. In which the secondary is wound on top of the primary. You should also notice that the induced voltage in the secondary is always of opposite polarity to the primary voltage.

Too large a current in a transformer causes magnetic saturation of the core i.e. the magnetization of the core is a maximum and it is no longer able to follow changes of magnetizing current. Particular care is required when there is a d.c. component.

In block consists of keypad, Microcontroller, display, Stepper motor, Stepper driver circuit, coil winding machine. This demo works on the basis that the keypad provided is for entering the set values that is the number of windings can be given In case of transformer the primary winding & secondary winding can be entered .

All the interfacing with Microcontroller is done through its I/O lines The Microcontroller used here is 89C51