A transformer is an electrical device that transfers electricity from one circuit to another with change in voltage, current, phase or other electric characteristics. Transfer of electricity from one circuit to another is purely by magnetic coupling, without relative motion of any part. Transformers are essential in high voltage power transmission providing an economical means of transmitting power over large distances. These are used for both industrial and commercial purposes. Ganpati Electricals (P) Ltd. is a well known and trusted supplier of a wide range of transformers of Crompton Greaves Limited.
Types of Cooling :
Oil-cooled Transformers : These are totally maintenance free and can be used both indoor and outdoor. Oil-cooled transformers are available in two versions namely (a) with OFF-load tap changer and (b) with ON-load tap changer.
Dry or Cast Resin Type Transformers : These are air-cooled, having an epoxy resin encasing the windings. These are ideal for indoor installation. However, because the molds for casting the coils are available only in fixed sizes, the design of such transformers is less flexible; this may increase the cost of customized dry transformers.