Many performance parameters of common dry-type transformers are very important, and its humidity is an important indicator value for dry-type transformers. It is no problem that the humidity of common dry-type transformers needs to reach a certain level. Generally speaking, the humidity requirements of dry-type transformers should be noted. What are the index values? Now let's have a detailed understanding.
The scope of dry-type transformer is very wide, so it is impossible to formulate a unified technical standard for general and relevant temperature and humidity standards. Except that the dry-type transformers in large power projects are equipped with humidity detection systems, there are no uniform professional technical requirements on temperature and humidity for general dry-type transformers.
The dry-type transformer has no requirement on the humidity of the system configuration, because its winding resistance bubbles in the dry-type transformer oil, and the breathing masks of large and medium-sized dry-type transformers are all equipped with silica gel desiccant to prevent too damp gas from entering the body.
Large and medium-sized new dry-type transformers are protected by nitrogen filling during shipment. Dry type transformers are directly filled with dry-type transformer oil, so they are not vulnerable to humidity hazards in this process. It is important that when nitrogen is broken and oil is added during the assembly of large and medium-sized dry-type transformers, the requirements for ambient humidity are relatively high, which should not exceed 70%. The dry-type transformer does not have that process.
The above are the humidity regulations for common dry-type transformer operation for reference. There are many problems that should be considered for dry-type transformer humidity. If you want to achieve better humidity regulations, you need to promote the continuous purification of the surrounding environment of dry-type transformer and the continuous improvement of dry-type transformer operation!
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