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in a substation, a transformer intended to provide supply to the auxiliary equipment, trafoalajaama trafo, mis on ette nähtud trafoalajaamas abiseadmete kontrollimiseks, parameetrite mõõtmiseks ja varustamiseks energiaga
auxiliary transformer . Metroloogia terminibaas. Estonian Language Institute, Sõnaveeb 2026. https://sonaveeb.ee/search/unif//mea/auxiliary%20transformer/1/eng (21.07.2026)
