What does kVA stand for?

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

What does kVA stand for?

Explanation:
kVA is the unit for apparent power in AC circuits—the product of voltage and current, without considering the phase angle between them. Kilovolt-amperes literally describes voltage (in kilovolts) times current (in amperes). This is different from kilowatts, which measure real power actually delivered as useful work and depend on the power factor. The relationship is P (kW) = S (kVA) × pf, where pf is the power factor; when pf is 1, kW equals kVA. For example, a 100 kVA device at pf 0.8 delivers about 80 kW. Megavolt-amperes are just a larger unit of the same concept, while kilowatts refer to real power. That makes Kilovolt-Amperes the correct term.

kVA is the unit for apparent power in AC circuits—the product of voltage and current, without considering the phase angle between them. Kilovolt-amperes literally describes voltage (in kilovolts) times current (in amperes). This is different from kilowatts, which measure real power actually delivered as useful work and depend on the power factor. The relationship is P (kW) = S (kVA) × pf, where pf is the power factor; when pf is 1, kW equals kVA. For example, a 100 kVA device at pf 0.8 delivers about 80 kW. Megavolt-amperes are just a larger unit of the same concept, while kilowatts refer to real power. That makes Kilovolt-Amperes the correct term.

Subscribe

Get the latest from Passetra

You can unsubscribe at any time. Read our privacy policy