Oil-immersed transformers from 25 kVA till 1000 kVA
Dry-type transformers from 100 kVA till 2500 kVÀ
22.09.2008 „Transformator service” has applied quality standard ISO 9001. 21.11.2007 Since October 2007 "Transformator service" has started to implement ISO 9001. 01.12.2005 Ukrainian certificate for oil-immersed transformers with power rating 250 - 400 kVÀ 01.10.2005 Russian certificate for oil-immersed transformers with power rating 25 - 160 kVÀ