dry type earthing transformers
Epoxy cast dry-type earthing transformers is a new high-tech products of CNEKE transformers. The new products has the features of good electrical performance, strong overload ability, high mechanical strength, fire-retadant, moisture-proof, maintenance-free and low noise.
The winding applies the subsection multi stayed cable structure, and thus greatly reduce the working voltage of layer and internal, and is helpful to improve the product performance and service life.
The layer insulation applies the non alkali glass fabric and lanon non weaving (non-woven fabrics) as the insulation material, it can effectively absorb the resin so that the layer insulation strength is improved and also improves the insulation intensity distribution, and improves the product insulation performance.
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- It applies the epoxy resin cast as the insulation material of DKSC series earthing transformers, and such material has the features of good electrical insulation performance, superior mechanical strength, beautiful appearance, bright color, moisture-proof, dust-proof, fire-retardant, maintenance-free, long service life. Other dry-type earthing transformers can not compare with it. Epoxy cast dry-type earthing transformers are good products in the market, and they are the first choice for the users.
- top ambient environment is 40℃, top altitude is 1000m. If the temperature is higher than 40℃ and the altitude is higher than 1000m, it should rated regulate according to the GB6450 standard. There are IP00、IP20、IP23 of protection level. The cooling type inculdes ONAN and ONAF which both need good ventilation. If the transformers are to be installed in the basement, or other bad ventilation capacity, t he additional cooling equipment are needed, the ventilation rate per 1KW loss need (2-4) m3/min air volume select.
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