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What is the overload capacity of dry type transformer

Date of issue: 2020/10/6 13:58:36 Source: http://perryswenson.com Click: zero

   Dry type transformer is a kind of power equipment. In general, dry-type transformer also needs certain overload, that is, the workload beyond its working capacity. There are many factors affecting the overload capacity of dry-type transformer. Today, we will take a look at the overload capacity of dry-type transformer and how to carry out the influencing factors

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 Dry type transformer

The overload capacity of dry-type transformer is related to ambient temperature, load condition before overload (initial load), insulation heat dissipation condition and heating time constant of transformer. If necessary, overload curve of dry-type transformer can be obtained from the manufacturer.

At present, the annual output of resin insulated dry-type transformer in China has reached 10000mva, which has become one of the countries with large production and sales volume in the world. With the popularization and application of SC (b) 9 series with low noise (distribution transformer noise below 2500kVA has been controlled within 50dB) and energy saving (no-load loss reduced to 25%), the performance index and manufacturing technology of dry-type transformer in China have reached the world advanced level.

With the popularization and application of dry-type transformer, its manufacturing technology has also made great progress. It can be predicted that the future dry-type transformer will obtain further development in the following aspects.

(1) energy saving and low noise: with the new low-consumption silicon steel sheet, foil winding structure, step iron core joint, environmental protection requirements, noise research, and the introduction of new materials, new processes and new technologies such as computer optimization design, the future dry-type transformer will be more energy-saving and more peaceful.

(2) high reliability: it will be people's unremitting pursuit to improve product quality and reliability.

Based on the environmental protection certification of ehc0, E1 (0), ef2 (0), ef2 (0) and environmental protection (ef2) of the transformer.

(4) large capacity: from 50-2500kva distribution transformer based dry-type transformer to 10000-20000kva / 35kV Power transformer, with the continuous increase of urban power load, the substation in urban power grid area is more and more deeply into the load center of urban central area, residential area, large factories and mines, and 35kV large-capacity residential center power transformer will be widely used.

(5) multi functional combination: from single transformer to multi-functional combined transformer with air cooling, protective shell, temperature computer interface, zero sequence transformer, power metering, enclosed bus and side outlet.

The above is the common overload capacity of dry-type transformer and the main influencing factors for your reference. For the overload of dry-type transformer, if you have any other questions and opinions, please log in our website and contact the technical personnel!


Related labels: Dry type transformer Overload capacity