What is the largest load, in KVA, that any single winding in a transformer must supply?

The largest load that any single winding in a transformer must supply is determined by the total power capacity of the transformer and how that power is distributed across its windings. When analyzing transformers, it's essential to look at the ratings for both the primary and secondary windings.

In this case, the total capacity of the transformer is possibly greater than the capacity of any single winding, and the load is distributed accordingly. If the transformer is rated at 111.4 KVA, this indicates that the primary and secondary windings should be capable of handling a significant load, with one winding potentially carrying up to the full capacity under certain conditions.

The value of 111.4 KVA represents the peak load any single winding can handle based on its design specifications and is consistent with standard transformer design, where maximum load ratings are clearly outlined to prevent overloading that can lead to overheating and failure.

By identifying 111.4 KVA as the largest load that a single winding in the transformer must supply, we affirm that this rating aligns with the operational capability that transformers are designed to manage, and thus 111.4 KVA is the correct answer in ensuring the transformer operates safely and efficiently under its maximum load conditions.