substation

noun

Etymology: Etymology tree Proto-Indo-European *upó Proto-Italic *supo Latin sub Latin sub-der. English sub- English station English substation From sub- + station.

1. A site where electricity supplied by long-distance (high-voltage) transmission lines is transformed or regulated for local (low-voltage) distribution.

   “The utility now wants the network to be undergrounded in the urban areas, which would mean substations with 33 kV distribution swtichgear.”

   “Meanwhile, an upgraded power supply at Sundon substation, between Leagrave and Harlington, will be commissioned concurrent with the overhead line connection and will be sufficient to power the initial electrified Corby services.”

2. A satellite police station serving one neighborhood or part of a larger jurisdiction.
3. A branch post office.
4. Any subordinate station.