What is the switching station

March 13, 2023

Switching post

Definition: switching station refers to the distribution station that uses switch equipment to realize circuit switching without voltage conversion. It is a power facility that supplies high voltage power to several surrounding power consuming units, and is located at the next level of the substation in the power system. It is characterized by the same voltage at the incoming and outgoing sides of the power supply. Of course, the regional substation also has the function of switching post. However, it should be clear that the switching post is different from the substation.

The switching station also refers to the power supply and distribution facilities used to receive and distribute electricity. It is called the switching station in the high-voltage power grid. The switching post in the medium-voltage power grid is generally used for the reception and distribution of 10kV power. Generally, the switching station has two inlets and more outlets (usually 4~6 outlets), but according to different requirements, circuit breakers and load switches can be set in and out. It is an all-metal enclosed switchgear combination with a voltage level below 10KV that can be operated outdoors. The transfer capacity is about 8000KW, providing medium-voltage power to the power transformation and distribution room of the plot or area.

Location: located near the station, freight yard, electric locomotive depot, hub station and other bulk loads.

Function: segment the power supply arm, reduce the scope of accident in case of accident, and improve the reliability and flexibility of power supply; Reduce the complexity of the substation; Do not change the voltage, only expand the number of feeder circuits, which is equivalent to the distribution station.

switching station

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