Transformers are the electric devices that change voltage of electricity from one level to another. Commonly, the change involves voltages being reduced from very high power line voltages, in the range of 500 kV to voltages of much lower levels that are ideal for household or industrial purposes. A dry type transformer is a kind of transformer that does not utilize any kind of liquid to cool the electrical coils and cores. Instead, these transformers depend on air ventilation for the purpose. The case of dry type transformers is properly ventilated to allow the proper flow of air and cool the coils.
Dry type transformers are known to be highly efficient and safe compared to their liquid-cooled counterparts and are thus commonly used for indoor applications where liquid-filled transformers, which are cooled with a fire-resistant liquid dielectric or oil, are considered too risky. Dry type transformers also eliminate the need for catch basins, fire proof vaults, or venting for toxic gases. These safety factors allow the installation of dry type transformers indoors close to the load, thereby improving the overall system regulation and eliminating the chances of loss commonly incurred due to secondary lines.
These safety related advantages make dry type transformers a preferred choice for their use in a number of sectors. The demand for such transformers has been significantly rising since the past few years. Some of the key end users who contributed to the increasing demand for dry type transformers are:
- Oil and gas: The oil and gas industry is one of the key demand drivers of the global dry type transformers market . The industry relies on dry type transformers for a large number of off-shore and on-land activities and operations carried out in terminals and refineries. The reliability and high safety features of dry type transformers make them viable for virtually every kind of environment in this industry.
- Commercial and residential buildings: Commercial, industrial, and residential buildings account for the maximum number of installations in the commercial markets. Including vast end-use sectors such as shopping centers, universities, data centers, hotels, high rise buildings, manufacturing facilities, and many others, the sector of commercial and residential buildings is one of the most lucrative end-use segments for the global dry type transformers market.
- Transportation: railways and marine: Dry type transformers come across as the best solution for a variety of railway applications, rolling stock, and indoor or outdoor substation installations. Dry type transformers can be installed near the utilization point, allowing optimized installation design, minimizing the need for low voltage circuits that subsequently leads to significant savings in low voltage connections and losses.
Dry type transformers are also ideal for use in a wide range of marine applications, including propulsion and distribution, and are commonly used on marine vessels ranging from yachts, ferries, to large ships. Other than these, the renewable energy sector, utilities, power generation, metal, mining and minerals, cement, and paper and pulp industries also register substantial demand for dry type transformers.
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