DRY TYPE TRANSFORMER
We at NGG POWER are manufacturing Cast resin dry type transformer (CRT) and Vacuum Pressure Impregnated Transformer ( VPI ) . CRT is used in the high moisture prone areas. It is because of its primary and secondary windings are encapsulated with epoxy resin. This encapsulation helps to prevent moisture to penetrate to affect the winding material. Complete protection is achieved by this cast resin encapsulation so that the transformer can work without disruption in highly moisture prone area. Thus this transformer is non hygroscopic. This type of transformer is available in ratings of 25 KVA to 12,500 KVA. with insulation class of F (90oC Temp. Rise). VPI type of transformer is made with minimum flammable material as insulation of windings. The windings of this transformer are made in foil or strip in a continuous layer. But for higher voltages, the winding is made of disks that are connected in series or parallel as per power rating with respect to voltage level. The insulation of the winding is void free impregnation that is made with class H polyester resin. The primary and secondary winding with core are laced safely within a vacuum protective box. Moisture Ingress Protection is high and it never gets affected by moisture.
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NGG Power Infratech Pvt. Ltd. is a renowned name in the field of manufacturing , repairing and servicing of a comprehensive range of transformers based at Bhiwadi, Rajasthan, India. We are ISO 2015 Certified Company and has installed capacity of 31.5 MVA, 132 KV Class.