substation
noun
sub·sta·tion
ˈsəb-ˌstā-shən 
: a subordinate or subsidiary station: such as
a
: a branch post office
b
: a subsidiary station in which electric current is transformed
c
: a police station serving a particular area
Examples of substation in a Sentence
Recent Examples on the Web
An electric substation is a part of an electrical system that transforms voltage, and connects different grids, among other functions.
—
Saman Shafiq, USA Today, 8 May 2025
Instead, on Friday, engineers at the airport had to manually reconfigure switches at another substation to temporarily reroute available power to Heathrow.
—Michael D. Shear, New York Times, 26 Mar. 2025
London's Heathrow Airport resumed some flights after closing earlier Friday when a fire at an electrical substation caused a major power outage and sparked travel chaos.
—Ivana Saric, Axios, 21 Mar. 2025
London’s Heathrow Airport halted operations early on Friday and will remain closed throughout the day after a fire at a nearby electrical substation caused a power outage, a move likely to impact hundreds of thousands of passengers and disrupt global travel.
—Danielle Chemtob, Forbes, 21 Mar. 2025
See All Example Sentences for substation
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Saman Shafiq, USA Today, 8 May 2025
Instead, on Friday, engineers at the airport had to manually reconfigure switches at another substation to temporarily reroute available power to Heathrow.
—Michael D. Shear, New York Times, 26 Mar. 2025
London's Heathrow Airport resumed some flights after closing earlier Friday when a fire at an electrical substation caused a major power outage and sparked travel chaos.
—Ivana Saric, Axios, 21 Mar. 2025
London’s Heathrow Airport halted operations early on Friday and will remain closed throughout the day after a fire at a nearby electrical substation caused a power outage, a move likely to impact hundreds of thousands of passengers and disrupt global travel.
—Danielle Chemtob, Forbes, 21 Mar. 2025
See All Example Sentences for substation
Cite this Entry
“Substation.” Merriam-Webster.com Dictionary, Merriam-Webster, https://www.merriam-webster.com/dictionary/substation. Accessed 20 May. 2025.
Copy CitationKids Definition
substation
noun
sub·sta·tion
ˈsəb-ˌstā-shən
1
: a branch post office
2
: a subsidiary station in which electric current is transformed
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