The normal transformer has two windings; primary winding and secondary winding. The autotransformer is a special kind of which has a common winding for primary and secondary winding. The operating…

The normal transformer has two windings; primary winding and secondary winding. The autotransformer is a special kind of which has a common winding for primary and secondary winding. The operating…

A transformer is a static device used to transfer the electrical energy from one voltage level to another voltage level. As we have seen in the construction of the transformer,…

Before starting the Load Test on Single-Phase Transformer , let’s define the voltage regulation. Voltage Regulation When a transformer loaded with a constant primary voltage, the secondary voltage varies because…

There are four tests in the transformer. Polarity test Open circuit test Short circuit test Sumpner’s test or back to back test In this article, we will explain the open…

An ideal transformer is an imaginary transformer. The proprieties of the practical transformers are different than the ideal transformers. The operation of the practical transformer is close to the ideal…

Among all electrical machines, the transformer is the most efficient electrical machine. As shown in  working of the transformer, it is a static device. Hence, friction and windage losses are…

A transformer is a static device and used to transfer the alternating power from one electric circuit to another electric circuit. The process of transferring power is done without any…