The presence of moisture in the transformer is due to water molecules absorbed by the papers and present in small amounts, like dissolving into the oil, the insulation, or as liquid water in the base of the transformer. As the first step to confront the issue, the excessive amount of moisture present in the transformer must be proven by analysis of oil water. If the moisture isn't removed by using a vacuum drying oven for transformer, the chemical decomposition which occurs as a result of oxidation of cellulose will limit the useful life of the transformer.
The necessity of avacuum drying ovenfor transformer

Utilizing an vacuum drying oven for transformeris not an option since situations may arise when the traces of water are found in active part of the machine, the transformer is left without oil for more than a whole year, self-indicating silica gel begins to lose its blue colourwhen parts of the transformer that are active is exposed to exterior atmosphere and the normal values of the transformer aren't repaired despite dehydration. Hering'stransformer drying ovenis designed in an efficient and compact efficient way to dry the main parts of the Transformer. The vacuumvacuum dryingovenis both easy to operate and maintain.
Transformer drying oven and lifespan of the apparatus
The life expectancy of transformers will be increased by drying the insulating oil as well as the insulating material. Invaccum ovento extending the life of the transformer, automatically financial expenditures are reduced and this improves profits. An increase in dielectric strength gained, which shows as the quality of the transformers.
The function of Hering's vacuum drying oven for transformer
In the Transformer vacuum drying oven is one of two types, dependent on the method employed of which one is a dryer that uses hot air and has an easy setting up, and the other is a vapour-phase drying plant that is less time-consuming.
A reduction in pressure will result in a low boiling point . This allows for an evaporation of moisture. this process has three steps including heating, elimination of autoclaves, and cooling.
A drying machine as well as the phase drying plant models in Hering's transformer drying oven differ from each other in the heating up phase , with different levels and degrees of transfer. Forvacuum ovens , vapour-phase models speed up drying, while the hot model can be easily installed.

Hering ensures that the drying facilities, which are subdivided into modules, have been thoroughly tested in their workshops prior to delivery to the customer. This method guarantees quick efficient and safe installation on the part of the client to ensure Hering's unbeatable German professionalism and precision that makes Hering stand out beyond the years of expertise it has acquired.