September 9, 2012

What is the role of the distribution substation?

Distribution Substation:
A bank of step-down transformers near the end users. The distribution substation converts voltage closer to the required usable levels. A typical distribution substations have a switch, one transformer, and minimal facilities on the low-voltage side.

Role of the Distribution Substation:
  • A distribution substation transfers power from the transmission system to the distribution system of an area. 
  • These substations are located near the consumers localities, receive electrical power from a high-voltage transmission system and convert it to voltage levels suitable for industrial, commercial, or residential use. 
  • Distribution substations are typically the points of voltage regulation, although on long distribution circuits (of several miles/kilometers), voltage regulation equipment may also be installed along the line. 
  • In addition to transforming voltage, distribution substations also isolate faults in either the transmission or distribution systems.
Distribution substation - 20/04kV MCset metal-clad switchgear (Schneider Electric)


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