How are power transformers rated?

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How are power transformers rated?

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🔍 Key Concepts

• Difference between power (kW) and apparent power (kVA) • How transformers handle voltage and current regardless of power factor • Why transformer nameplates list a value that does NOT depend on load power factor

💭 Think About

• Is a transformer concerned with real power delivered to the load, or with voltage and current it must safely carry? • Which unit describes apparent power (volts × amps) instead of real power? • Look at the choice formats: which one is a standard electrical engineering unit you’d actually see on a transformer nameplate?

✅ Before You Answer

• Identify which option represents apparent power, not real power • Eliminate any options that are not standard electrical units used in practice • Ask yourself: which unit would stay the same even if the power factor of the load changes?

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Question 1 of 20

Q

How are power transformers rated?

A

ampere-turns

B

kilovoltamperes

C

kilowatt-volts

D

kilowatts-amps

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Question 1 / 2066636eed28f7522a1c51d8e3

Question 1 of 2066636eed28f7522a1c51d8e3

How are power transformers rated?

Back

Question 1 of 20

66636eed28f7522a1c51d8e3

Q

How are power transformers rated?

No comments yet

Be the first to share your thoughts!

If the question has a related picture, it will appear here.

🔍 Key Concepts

• Difference between power (kW) and apparent power (kVA) • How transformers handle voltage and current regardless of power factor • Why transformer nameplates list a value that does NOT depend on load power factor

💭 Think About

• Is a transformer concerned with real power delivered to the load, or with voltage and current it must safely carry? • Which unit describes apparent power (volts × amps) instead of real power? • Look at the choice formats: which one is a standard electrical engineering unit you’d actually see on a transformer nameplate?

✅ Before You Answer

• Identify which option represents apparent power, not real power • Eliminate any options that are not standard electrical units used in practice • Ask yourself: which unit would stay the same even if the power factor of the load changes?

👋 Hi! I'm Genie, your AI study assistant. How can I help you with this question?

Quick actions

— No credit card needed