When parallel connections are made in transformers, what benefit is gained?

When transformers are connected in parallel, the primary benefit gained is increased capacity. This means that the total capacity of the transformers combined allows for a greater load to be handled than a single transformer could manage on its own. In a parallel connection, the transformers share the load, which enhances the overall capacity of the system. This is particularly useful in applications where the load demands may exceed the capacity of a single transformer or when redundancy and reliability are desired, allowing for maintenance or replacement without affecting service.

Higher voltage output is generally achieved through series connections rather than parallel. While lower current draw can sometimes be a benefit, it is not the primary reason for making parallel connections, and the relationship between voltage and current in transformers does not inherently result in a lower current with parallel connections. Reduced maintenance is not a direct benefit of parallel transformer connections; maintenance needs depend more on the individual transformers and their operating conditions rather than their configuration.