substation

[suhb-stey-shuhn]

noun

1. a branch of a main post office.

2. an auxiliary power station where electrical current is converted, as from AC to DC, voltage is stepped up or down, etc.

substation

/ ˈsʌbˌsteɪʃən /

noun

1. a subsidiary station

2. an installation at which electricity is received from one or more power stations for conversion from alternating to direct current, reducing the voltage, or switching before distribution by a low-tension network

Word History and Origins

Origin of substation¹

First recorded in 1885–90; sub- + station

Example Sentences

The utility said that xAI’s construction of a substation wouldn’t impact residential rates, which are set by the utility’s board of commissioners and approved by the city council.

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The strategy, in which Moscow has bombed substations, coal mines and gas sites, hasn’t worked so far.

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An investigation into how the fire started at an electrical substation which supplied power to Heathrow discovered that it was the result of a known fault at the site.

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This year a bonfire in south Belfast caused concern because of the presence of asbestos on the site, and the fact it was close to an electricity substation which supplies power to two nearby hospitals.

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Concerns had been raised about asbestos at the Belfast site as well as separate fears over the power supply to two major hospitals because the bonfire is near an electricity substation.

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