Oil-Filled and Dry-Type Distribution Transformers | Elevate Power Distribution: Explore Premium Voltage Transformers | CIC

Low-Voltage & Medium-Voltage Electric Transformers - Dry, Oil Immersed & Pole Mounted | Serving a diverse client base around the world, CIC is a leading manufacturer and supplier of current transformers, potential transformers (voltage transformers), distribution transformers, epoxy insulators, electronic meters, and other electrical and electronic products.

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Distribution Transformers (LV & MV) | Revolutionize Your Energy Systems with Advanced Distribution Transformers | CIC

Based in Taiwan since 1974, CHALLENGE INDUSTRIAL CO., LTD. specializes in manufacturing high-quality electrical products, including Distribution Transformers (LV & MV), current transformers, voltage transformers, distribution transformers, epoxy insulators, and power capacitors. With over 45 years of expertise and technology collaboration with Germany's MWB, CIC is ISO certified and offers products recognized for reliability in various industrial applications.

Challenge Industrial Co., Ltd. (CIC) stands at the forefront of electrical innovation, specializing in the manufacturing of current transformers, voltage transformers, distribution transformers, epoxy insulators, and power capacitors. With a legacy built on over 45 years of engineering excellence and leveraging advanced German technology, CIC commits to delivering high-quality, ISO-certified electrical solutions. Their comprehensive product range, paired with an ISO-certified approach and a TAF-accredited laboratory, ensures reliability and performance for a diverse global market. CIC is your go-to source for electrical components that power progress and efficiency.

CIC has been offering customers high-capacity power capacitors since 1974, both with advanced technology and 45 years of experiences, CIC ensures each customer's demands are met.

Distribution Transformers (LV & MV)

Low-Voltage & Medium-Voltage Electric Transformers - Dry, Oil Immersed & Pole Mounted

Oil-Filled and Dry-Type Distribution Transformers
Oil-Filled and Dry-Type Distribution Transformers

Distribution transformers stand as one of the cornerstones of CIC’s decades-long expertise in research and production. Since 1983, upon completing a comprehensive range of MV and LV instrument transformers, CIC has also dedicated itself to designing and providing electrical transformers tailored for distribution systems.

CIC offers a diverse range of medium-voltage and low-voltage distribution transformers for single-phase and three-phase applications, including oil-immersed, cast resin, and dry-type versions. The low voltage dry-type distribution transformers utilize Nomex-material Class-H-insulation coils or non-ventilated resin-encapsulated Class-H insulation. Notably, CIC pioneered the ET series in 1992 as Taiwan's first resin-encapsulated non-ventilated transformers. Equipped with optional protection devices and alarm functions, the ET series has become the preferred low-voltage distribution transformer in high-rise buildings, offices, and landmarks like the Taipei 101 skyscraper due to their safety and performance.

CIC's portfolio also features pole-mounted transformers and pad-mounted single-phase transformers, adhering to power company specifications and quality standards. With a commitment to innovation, quality manufacturing, and delivering value, CIC provides optimized distribution transformer solutions.


Explore our featured selections below for this category. Click any product to learn more.

For our full range or specific inquiries, please contact us directly.

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  • Pole-Mounted Transformers
    Pole-Mounted Transformers
    Pole-Mounted Transformer Series

    Made with premium-grade copper wire and insulation oil, these pole-mounted transformers can be specially designed or configured to meet the requirements of power companies in most countries. Every effort is made to ensure customer satisfaction.


  • Low-Voltage Oil-Immersed Transformers
    Low-Voltage Oil-Immersed Transformers
    LV Oil Transformer Series

    For high efficiency and safety, CIC’s low-voltage oil-immersed transformers are made with high-permeability silicon steel cores and insulating oil of a high ignition point.


  • Medium-Voltage Oil-Immersed Transformers
    Medium-Voltage Oil-Immersed Transformers
    MV Oil Transformer Series

    CIC’s medium-voltage oil-immersed transformers, characterized by high efficiency and safety, are made with high-permeability silicon steel cores, and insulating oil of a high ignition point.


  • Non-Ventilated Resin-Encapsulated Transformers (H-Class Insulation)
    Non-Ventilated Resin-Encapsulated Transformers (H-Class Insulation)
    ET Series

    Non-Ventilated Resin-Encapsulated Transformers (with H-Class insulation) are characterized by a reduced noise level compared to ordinary dry-type or cast-resin transformers. Compact and installable in a number of different ways, these transformers are furthermore self-extinguishing. With a durable IP20 enclosure, these transformers come in Regular Type and "Silent" Type, for the lowest sound levels. Optional accessories include protective devices for overload and over-temperature protection. SPD for protection against lightning is also available.


  • LV Cast Resin Dry Type Transformers (CRT)
    LV Cast Resin Dry Type Transformers (CRT)

    Self-extinguishing low-voltage dry-type transformers, with coils cast in epoxy resin, for moisture-prone and polluted environments. Cores made with cold-rolled grain-oriented silicon steel sheets. Optional protective enclosures available for outdoor applications.


  • MV Cast Resin Dry Type Transformers (CRT)
    MV Cast Resin Dry Type Transformers (CRT)

    Self-extinguishing medium-voltage dry-type transformers, with coils cast in epoxy resin, for moisture-prone and polluted environments. Cores made with cold-rolled grain-oriented silicon steel sheets. Optional protective enclosures available for outdoor applications.


  • Low-Voltage Dry-Type Transformers
    Low-Voltage Dry-Type Transformers
    DTH Series

    LV Dry-Type Transformers, made with high-permeability cold-rolled grain-oriented silicon steel sheets (CRGO) and H-Class insulating materials, are self-extinguishing and characterized by excellent dissipation of heat, high efficiency, low noise, easy installation, and low maintenance.


  • Pad-Mounted Transformers
    Pad-Mounted Transformers
    OSA Series (Padmount)

    CIC Pad-Mounted Transformers have been used by the Taiwan Power Company for over 25 years. These products, well-received in numerous countries, are type-tested by CIC's internationally-accredited testing laboratory.



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