What is the maximum kVA of power that a bank of transformers using 100 KVA transformers can deliver?

A bank of transformers can deliver different kVA ratings depending on how they are connected – either in series or in parallel. When transformers are connected in parallel, the total kVA capacity is the sum of the individual units.

In this case, if the bank consists of multiple 100 kVA transformers and these transformers are connected in parallel, the total capacity can be calculated based on the number of transformers in the bank. For example, if there are two 100 kVA transformers, you would have a combined total of 200 kVA.

However, the specific answer mentioned, 173 kVA, may relate to a specific number of transformers or an operational consideration, such as derating factors or max load conditions that limit capacity despite the theoretical maximum.

This also emphasizes the importance of understanding both the theoretical capabilities of transformers and the practical applications or configurations that might influence the effective delivery of power. Therefore, the context may suggest a situation where, due to factors such as design limits or safety considerations, the bank can only effectively deliver a certain maximum kVA below what might be theoretically possible.

In practical applications, knowing the connection method and any operational limits is crucial in determining the effective capacity that any transformer bank can offer, hence landing at a