vvl92 said:
Winding resistance refers to the electrical resistance of the wire used in the transformer's primary and secondary windings. It is an important factor in determining the efficiency and performance of a transformer.
Winding resistance is measured using a low-resistance ohmmeter. The ohmmeter is connected to the primary winding terminals, and the resistance is measured across the entire length of the winding.
Winding resistance affects the amount of power that can be transferred through a transformer. Higher resistance results in more power loss and lower efficiency, while lower resistance allows for more efficient power transfer.
Leakage reactance is the unwanted inductance in a transformer's winding. It is caused by the magnetic flux lines that do not link with both the primary and secondary windings, resulting in energy loss and decreased efficiency.
Leakage reactance can be minimized by using high-quality insulation between the windings, reducing the distance between windings, and using a tightly wound core. Proper design and construction can also help to minimize leakage reactance in transformers.