Dry-Type vs Oil-Immersed: Choosing the Right Transformer for Your Project
In power distribution, selecting the correct transformer is critical for safety, efficiency, and total cost of ownership. Two primary technologies dominate the market: dry-type and oil-immersed transformers. Understanding their core differences is the first step in making an informed decision.
The Modern, Fire-Safe Choice: Dry-Type Transformers
Dry-type transformers use air or solid cast resin as insulation, eliminating flammable liquids. The advanced SC(B) series epoxy cast dry-type transformer exemplifies this technology. Its coils are vacuum-cast in epoxy resin, creating a robust, monolithic block. This design delivers true Fireproof Dry-type transformer performance—it is flame-retardant, self-extinguishing, and poses no risk of oil leakage or fire spread. Ideal for indoor and sensitive environments, these units are Pollution-free Dry-type transformer solutions, requiring minimal maintenance and offering excellent moisture and Dry-type transformer Corrosion-resistant properties. They are the preferred choice for urban grids, high-rise buildings, hospitals, data centers, tunnels, and industrial plants where safety and environmental protection are paramount.
The Robust, Traditional Workhorse: Oil-Immersed Transformers
Oil-immersed transformers utilize insulating oil for cooling and insulation, housed within a sealed tank. This classic design, offered by a reliable three-phase oil-immersed transformer factory China, is renowned for its high efficiency, excellent overload capacity, and long operational life. The oil effectively dissipates heat and protects the core and windings, making these transformers exceptionally durable and weather-resistant. They are typically more cost-effective for higher power ratings and are perfectly suited for outdoor substations, utility networks, industrial power plants, and mining operations. A proficient 35kV transformer manufacturer China will offer diverse series, including flat-stacked core, wound core, and amorphous alloy types, to meet varied efficiency and budget requirements.
Our expertise spans both core technologies:
For applications demanding utmost safety and environmental care, our fireproof dry-type transformer on sale portfolio, including the premium SC(B) series, offers reliable, maintenance-free operation.
For robust outdoor and high-capacity needs, our oil-immersed range delivers proven performance and cost efficiency.
We excel in customizable and wholesale solutions. Whether you are a distributor, EPC contractor, or utility, we offer:
Voltage Flexibility: From standard 10kV /20kV transformer manufacturer China solutions to higher voltage classes.
Tailored Designs: Modifications in ratings, dimensions, tap changers, and protective devices to meet your exact site and grid requirements.
Quality Assurance: All products are manufactured to international standards (IEC, IEEE, etc.), ensuring reliability and global compliance.
Contact Comking Electric today for technical consultation and competitive quotations. Let us power your project with reliability and precision.