Testing and Transformer oil quality

Transformer oils are subject to electrical and mechanical stresses while a 3 phase step up transformer is in operation. In addition there is contamination cused by chemical interactions with windings and other solid insulation, catalyzed by high operating temperature. The original chemical properties of transformer oil change gradually, rendering it ineffective for its intended purpose after many years. Oil in large polemounted transformers and electrical apparatus is periodically tested for its electrical and chemical properties, to make sure it is suitable for further use. Sometimes oil condition can be improved by filtration and treatment.

With Gilled Radiator Transformer

It is well known in the station design, the main transformer step-up transformer general should be chosen, that is, its elevated voltage side voltage than the rated voltage, high voltage level of 10%, its purpose is to enable the sending end voltage hydroelectric line voltage after loss after the loss of equilibrium with the system terminal voltage large hydropower station, but 10kva step up transformer has no formal step-up transformer, this transformer is used especially in rural small hydropower transmission distance is long, the line voltage loss often causing the outlet voltage is too high and the problem of arrears reactive power generator, which is unreasonable, it is recommended that you buy 3 phase step up transformer.