The turns ratio of a transformer is defined as the ratio of what?

The turns ratio of a transformer is defined as the ratio of the number of turns in one winding to the number of turns in the second winding. This is crucial in understanding how a transformer operates, as it directly influences the voltage transformation between the primary and secondary windings.

The turns ratio determines how the input voltage (primary voltage) is transformed into the output voltage (secondary voltage). For instance, if the primary winding has more turns than the secondary, the transformer reduces voltage, which is often associated with step-down transformers. Conversely, if the secondary has more turns, it increases voltage, typical of step-up transformers. This relationship is fundamental to the principles of electromagnetic induction and the operation of transformers in electrical power systems, as it defines how efficient voltage levels can be managed in various applications.

Understanding this concept helps assess how transformers are applied within substations and broader electrical systems, providing insight into their contributions to electrical distribution and efficiency.