When researching the advantages of cast resin dry-type transformers , you may find the information available to be somewhat incomplete. More so, only a few of its favourable features are well known, with one of the most noteworthy being its minimal fire risk due to zero oil usage. Self-extinguishing, low fire hazard: The transformer insulation consists of an epoxy resin and quartz powder mixture (an eco-friendly material). This allows the winding to be flame-retardant, self extinguishing and almost maintenance free, eliminating the need for costly fire extinguishing equipment. It will also not produce toxic gases, not even under the effects of arcing. Zero oil usage: The cast resin transformer only needs air to cool. Therefore, it eliminates extra costs and labour for liquid-level checking, oil testing, oil recycling costs, and dielectric testing for moisture absorption. Being almost maintenance free, there are no more on-site oil leaks, which require gasket replacements. ...
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