The function of the electric power delivery system is to
transport electric power from generation sources to end users.
Switchyards and substations are important components of this system.
A switching substation, or switchyard, is a substation
without transformers that operates only at a single voltage level.
Switchyards, used mainly
for connections and interconnections, are essential for
transmission, distribution, collection, and controlling the flow of
electricity. The
switchyard delivers power generated at the power plant to
the electrical grid. Switchyards are generally classified by voltage
level, circuit
breaker and bus arrangements. Switchyards are often located
directly adjacent to or near a power station.
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