The Windings

The Windings

The windings:

 

* LV Winding:

   LV winding of transformers are made of copper or aluminum foil to reduce load-losses and eliminate axial force during short-circuit. 

 

Foil winding machine

 

 

* HV Winding: 

HV windings are of multi-layer type. HV windings are designed to uniform impulse voltages causes of lightning. A special type of epoxy diamond dotted paper with high mechanical, temperature, and electric strength is used as insulation between layers. Resin on paper surface will be melt when dried so that enameled copper wires on layers will be stuck together. Consequently, the HV winding have good ability to withstand vibration and axial forces during short-circuit.

HV winding machine

 

 

 

                                                                                                                                                                                                                                                                                                                                                                                                                                                                                 

 

                                     

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