When transformers are banked together, the bank's kVA rating equals which of the following?

Enhance your skills with the Transformers Test 1. Utilize flashcards and multiple choice questions, each accompanied by hints and explanations. Ensure you're fully prepared for your exam!

Multiple Choice

When transformers are banked together, the bank's kVA rating equals which of the following?

Explanation:
Banking transformers together means connecting them in parallel at the same system voltage to increase current capability. The apparent power (kVA) of a transformer is voltage times current, so when several units share the load at the same voltage, their current contributions add. Therefore the bank’s total kVA rating is simply the sum of the individual kVA ratings. Good practice is to ensure proper impedance matching so the load is shared evenly, but the fundamental idea is that parallel alignment makes the bank’s kVA equal the sum of each unit’s kVA.

Banking transformers together means connecting them in parallel at the same system voltage to increase current capability. The apparent power (kVA) of a transformer is voltage times current, so when several units share the load at the same voltage, their current contributions add. Therefore the bank’s total kVA rating is simply the sum of the individual kVA ratings. Good practice is to ensure proper impedance matching so the load is shared evenly, but the fundamental idea is that parallel alignment makes the bank’s kVA equal the sum of each unit’s kVA.

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