Quick Answer: Why do transformers connected in parallel have the same voltage ratio?

Why should transformers connected in parallel have the same voltage ratio?

Explanation: The transformers must have the same voltage-ratio to avoid no-load circulating current when transformers are in parallel on both primary and secondary sides. Since the leakage impedance is low, even a small voltage difference can give rise to considerable no-load circulating current and extra I2R loss.

What is the voltage regulation of a transformer?

The voltage regulation of the transformer is the percentage change in the output voltage from no-load to full-load. And since power factor is a determining factor in the secondary voltage, power factor influences voltage regulation. This means the voltage regulation of a transformer is a dynamic, load-dependent number.

What is the main advantage of connecting two transformers in parallel?

The advantages of parallel operation of transformers are:Increased reliability and maximized electrical power system availability. This is because it is not necessary to disconnect the whole system if fault occurs with one of the transformers.

THIS IS IMPORTANT:  Question: Will phenylephrine dry up breast milk?