Dry transformers have become a common name for the industries and townships to use for the power supply. The power that comes from the substations are low in voltage and hence are converted by the transformers into appropriate voltage and settings to make it useful for general operations.
The power sockets of the houses and industries are determined by the use that is needed in the equipments. And so there are varieties of transformers used to bring it into the specifications required. The transformateur à sec comes in a range of variations of design and mechanism to suit the purpose.
Open wound transformer
The open wound transformers are made from the coils of aluminum or copper which are then dipped into varnish of high temperature. These are further baked to make it suitable for power control and supply. The dip and bake method is therefore an industrial process giving an effectiveness to the transformers.
Vacuum pressure impregnated dry transformers
Made of high-resistance materials and moisture sealing polyester sealant, these are the high-temperature holding dry transformers. Here are vacuum pressure impregnation technique is applied to bring about an insulation that is ranked over like O and K fluid classifications. Mainly suited for the industries and commercial spaces, these provide for radiance protection and use of advanced power.
Vacuum pressure encapsulated (VPE)
A stage ahead of the VPI dry transformers these are much advanced in performance and coating. Instead of using the polyester sealant, a thick coating of silicon-based resin is done on the coils to provide for resistance to moisture, humidity, salt, etc it makes it suitable to be used in hard environments like the substations, chemical industries, etc. Use of alkalis, acids, chlorides in the environment where VPE dry transformer is installed can be easier.
Cast coil dry transformer
Cast coil transformers are the one where the casting of another metals is done over the copper coils to make it resist the harsh conditions. These are able to resist moisture, temperature, weather, chemical, salt and even toxic substances. Particularly used in the industries like mining, production plants, onboard ships and more these are able to take through harsh environments and still work effectively for years.
Buying, renting or repairing of the dry transformers depends on the kind of transformer you invest in. It is suitable to chose an ideal one depending on the kind of industry you are working in. As dry power transformers are rather safe, this makes a quality investment for the industries!