DIAGNOSTICS are made by using some of the methods for diagnostics
of transformers. These methods allow prognostication with high
precision of the remaining resource and failure probability.
REPLACEMENT of old or faulty bushings by new ones is made
After detailed calculations of the electric field intensity around the bushing;
After comparing the insulator geometry and the transformer construction;
„DIT-Ì” LTD has at its disposal a detailed
data basis on the construction and technical features of all HV bushings,
which are now used in R.of Bulgaria and of those, offered by leading world
companies from Western Europe and Russia.
„DIT-Ì” LTD has at its disposal one of the
best teams for diagnostics, repair, reconstruction
and replacement of
on-load tap changers for power transformers. The company has a rich
data basis on the features of on-load tap changers, installed on the
power projects in the country.
All transformer oils after operation of 10 and more years need
cleaning, in order to fully or partially eliminate the products
„DIT-Ì” LTD offers effective
and ecologically clean technology for improving the operating parameters
of transformer oils in operation. After cleaning they reach the fresh
oils parameters, according to BDS/EN..
By this technology are cleaned 500 tons oils, used
in different transformers up to 220 kV.