The
electricity produced by a generator travels along cables
to a transformer, which changes electricity from low voltage
to high voltage. Electricity can be moved long distances
more efficiently using high voltage. Transmission lines
are used to carry the electricity to a substation. Substations
have transformers that change the high voltage electricity
into lower voltage electricity. From the substation, distribution
lines carry the electricity to homes, offices and factories,
which require low voltage electricity
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