substation

American  

[suhb-stey-shuhn] / ˈsʌbˌsteɪ ʃən /

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.

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substation British  

/ 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

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Etymology

Origin of substation

First recorded in 1885–90; sub- + station

Example Sentences

While many voltage substations are well protected, he said, there are roughly 3,500 distribution substations across Ukraine, making it nearly impossible to protect them all.

From The Wall Street Journal

“The damage from the fire in our substation was significant and extensive and the repairs and safe restoration will be complex,” PG&E posted Sunday morning on X. “We have mobilized additional engineers and electricians.”

From Los Angeles Times

The utility also replaced 38% fewer substation transformers than it said it would.

From Los Angeles Times

The product, along with other new energy offerings, could expand Tesla’s available market to locations that aren’t dependent on substations, the analysts say.

From The Wall Street Journal

But Musk is already advertising the fourth-generation Megapack, which he said would incorporate “a lot” of what is usually in a substation.

From MarketWatch