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A substation is a part of an electrical generation, transmission, and distribution system. Substations transform voltage from high to low, or the reverse, or perform any of several other important functions. Between the generating station and consumer, electric power may flow through several substations at different voltage levels.
Most of the world uses 50 Hz 220 or 230 V single phase, or 400 V three-phase for residential and light industrial services. In this system, the primary distribution network supplies a few substations per area, and the 230 V / 400 V power from each substation is directly distributed to end users over a region of normally less than 1 km radius.
Aside from transformers, other major components or functions of substations include: Circuit breakers: used to automatically break a circuit and isolate a fault in the system. [27] Switches: to control the flow of electricity, and isolate equipment. [28] The substation busbar: typically a set of three conductors, one for each phase of current ...
Each substation also contained a number of oil-filled circuit breakers to disconnect both the 12 kV and 24 kV lines under load. The larger substations also have a small equipment and maintenance building to house any control equipment or secondary transformers for generating the 100 Hz signal power.
Subtransmission runs at relatively lower voltages. It is uneconomical to connect all distribution substations to the high main transmission voltage, because that equipment is larger and more expensive. Typically, only larger substations connect with this high voltage. Voltage is stepped down before the current is sent to smaller substations.
Duke Energy completed repairs on substation equipment damaged in shootings over the weekend on Wednesday and restored power to all but a fraction of the thousands of customers who lost electricity ...
A traction substation, traction current converter plant, rectifier station or traction power substation (TPSS) is an electrical substation that converts electric power from the form provided by the electrical power industry for public utility service to an appropriate voltage, current type and frequency to supply railways, trams (streetcars) or ...
The gunshots fired into two Duke Energy power substations in Moore County echoed earlier attacks on similar facilities around the country, most notably one outside San Jose, California, nearly a ...
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