Ево и једног примјера употребе доле на Википедији.

I believe that the question refers to switching substations
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switching substation
razvodno postrojenje

http://encyclopedia2.thefreedictionary.com/electric power su...
2. Switching substations are substations whose equipment is mainly for various connections and interconnections, and does not include transformers.

Same topic in Serbian and in English:
http://en.wikipedia.org/wiki/Power_engineering
The transmission system is a highly integrated system. It is referred to the substation equipment and transmission lines. The substation equipment contain the transformers, relays, and circuit breakers.
http://sh.wikipedia.org/wiki/Elektroenergetika
Unutar razvodnog postrojenja nalazi se oprema kao što su transformatori, releji i prekidači. Transformatori prenose električnu energiju iz prenosne mreže jednog naponskog nivoa u prenosnu mrežu drugog naponskog nivoa.

http://209.85.229.132/search?q=cache:h4y2kjk4jXcJ:www.thecro...
Due to the environmental ' security issues of laying multiple subsea cables in an environmentally sensitive and busy shipping lane area such as the Humber Estuary, the DC switching substation required at Killingholme for the 2020 network design has been placed on an offshore substation at the mouth of the Humber estuary.

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Note added at 2 days23 hrs (2010-02-21 12:42:20 GMT)
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http://en.wikipedia.org/wiki/Electrical_substation#Switching...
Switching substation
A switching substation is a substation which does not contain transformers and operate only at a single voltage level. Switching substations are sometimes used as collector and distribution station. Sometimes they are used for switching the current to back-up lines or for paralellizing circuits in case of failure. Example herefore are the switching stations at HVDC Inga-Shaba.