What is the maximum current allowed to be...

Question 1 of 270705eccefa4bacbc34ba4d48101

What is the maximum current allowed to be drawn from the secondary of a 2 kVA step-down transformer with a turns ratio of four to one if connected across a 440 volt line?

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Question 1 of 27070

Q

What is the maximum current allowed to be drawn from the secondary of a 2 kVA step-down transformer with a turns ratio of four to one if connected across a 440 volt line?

🔍 Key Concepts

• Transformer power rating (kVA) and how it relates to current and voltage • Relationship between primary and secondary voltage in a step-down transformer with a 4:1 turns ratio • How line voltage and the transformer’s turns ratio affect the secondary voltage and current

💭 Think About

• First, from the kVA rating, what is the total apparent power the transformer can safely deliver? • If the primary is connected to 440 V with a 4:1 step-down ratio, what is the resulting secondary voltage? • Using the power rating and the secondary voltage, what current corresponds to that power on the secondary side?

✅ Before You Answer

• Be sure to convert kVA to VA before using it in formulas • Double-check the secondary voltage you calculate from the 4:1 ratio and 440 V primary • Use the correct formula I = P / V with consistent units (VA and volts) to find the maximum secondary current