What is the voltage and amp service at the street before it steps down to the residence?

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The voltage and ampacity can vary depending on the demand of the neighborhood. The voltage is typicaly 240 volt with the amperage capacity varying. Answer 7,200 volts goes to the transformer on the pole, amperage varies.
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What is used to step up or step down the voltage?

Low frequency coils

Why is the voltage stepped up before transmission?

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secondary

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Transformer

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In Physics

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What happens to voltage in a step-down transformer?

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Why you step up or step down voltage why not current?

The current is automatically stepped up or down when the voltge isstepped down or up by a transformer. Most transformers are designed for a constant voltage, and thecurrent va