The Ultimate Guide to Electrical Transformers” is a definitive compendium exploring the technical intricacies and practical applications of electrical transformers. This comprehensive guide elucidates transformer principles, design, functionalities, and diverse usages in power transmission and distribution systems. It includes detailed diagrams, operational mechanisms, maintenance tips, and an in-depth exploration of transformer types and their significance in the electrical industry.
A transformer is a device made of two or more inductors, one of which is powered by AC, inducing an AC voltage across the second inductor. If the second inductor is connected to a load, power will be electromagnetically coupled from the ﬁrst inductor’s power source to that load.
The powered inductor in a transformer is called the primary winding. The unpowered inductor in a transformer is called the secondary winding.
Magnetic ﬂux in the core (Φ) lags 90 degrees behind the source voltage waveform. The current drawn by the primary coil from the source to produce this ﬂux is called the magnetizing current, and it also lags the supply voltage by 90 degree.