In a distribution transformer, the voltage on the primary winding is generally what relative to the secondary?

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Prepare for the North Carolina ElectriCities Lineworker Exam. Study with flashcards and multiple choice questions, each question offers explanations and insights. Enhance your readiness for the exam!

Multiple Choice

In a distribution transformer, the voltage on the primary winding is generally what relative to the secondary?

Explanation:
In a distribution transformer, the device is designed to reduce voltage from the high-voltage side to a much lower voltage on the secondary. The voltages are related by the turns ratio: V1/V2 = N1/N2. Since the primary has more turns than the secondary, the primary voltage is higher than the secondary voltage. A typical example is stepping down from around 7,200 V on the primary to 120/240 V on the secondary. The transformer itself fixes this ratio, so while line conditions can cause small voltage variations due to impedance, the primary remains higher than the secondary in normal operation.

In a distribution transformer, the device is designed to reduce voltage from the high-voltage side to a much lower voltage on the secondary. The voltages are related by the turns ratio: V1/V2 = N1/N2. Since the primary has more turns than the secondary, the primary voltage is higher than the secondary voltage. A typical example is stepping down from around 7,200 V on the primary to 120/240 V on the secondary. The transformer itself fixes this ratio, so while line conditions can cause small voltage variations due to impedance, the primary remains higher than the secondary in normal operation.

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