The first step in planning a substation layout is the preparation of a single-line diagram, which shows in simplified form the switching and protection arrangement required, as well as the incoming supply lines and outgoing feeders or transmission lines.OverviewA substation is a part of an electrical,, and system. Substations transform from high to low, or the reverse, or perform any of several other important functions. Between th. Substations may be designed and built by a or alternately all phases of its development may be handled by the. Most commonly, the utility does the engineering and procurement while hirin. Substations typically serve at least one of the following purposes: • Increasing the voltage produced by for efficient over long distances, using step-up transformers.
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