6-220KV Energy-Saving Transformers
& One-Stop Solutions
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100% Factory-Tested -
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IEC-Compliant • Reliable • Long-Term Stable
 
12 Years of Transformer Excellence
6kV–220kV Full-Series • IEC-Compliant • Energy-Saving
One-Stop Solution for Grid, Renewables & Industrial Power
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Featured Products

We manufacturing all kinds of distribution transformers, engaged with 35kV and below, SC(B)10, SC(B)11, SC(B)12 series epoxy resin cast dry-type transformer, Non-sealed H grade dry type power transformer, S series oil immersed transformer, S(B)H15-M, S(B)H16-M sealed amorphous alloy transformer, YB series of box substation(European box-type), Combined transformer (American type prefabricated substation).

About HY Transformer

Jiangsu Hengyi Transformer is a professional high-tech manufacturer specializing in energy-saving low-loss oil-immersed and dry-type power transformers for global power and industrial applications.
With years experience, HY TRANSFORMER always adhere to "top quality" route. our technology and quality has been in leading position in transformer industry.
HY TRANSFORMER has won the recognition and support of customers at home and abroad with its excellent product quality and thoughtful and careful service attitude.
At present, the company has cultivated a sales team and sales network that combines point with area, is full-time and complementary, takes the old with the new, and develops coordinately.
The products have been sold to all provinces and autonomous regions except Taiwan Province, and exported to Southeast Asia, Central Asia, and many countries and regions in Africa District.

Why Choose HY Transformer?​​​​​​​

Why Choose HY Transformer?​​​​​​​

HY Transformer Services Tailored To You

At HY TRANSFORMER, we not only deliver high-quality, standard-compliant transformer products, but also provide a full-process, one-stop service covering pre-sales consultation, on-site technical guidance, after-sales guarantee, and lifelong operation maintenance. Adhering to the service tenet of "Quality First, User Supreme", we offer comprehensive, efficient and reliable technical support and after-sales protection for all domestic and overseas project customers.

Our Solutions

our products are widely used in power grid, power supply, coal, metallurgy, petroleum, chemical, construction, port, airport, railway transportation, urban infrastructure, and other areas.
Customized Cases​​​​​​​

    Digital Showroom

    If you want to learn more about our manufacturing capabilities, you can click on the avatar in the scene, or accept my invitation!
    What Our Customer Says​​​​​​​

    Our Certifications

    Our company holds a complete credential package consisting of ISO three major management system certifications, national third-party product inspection report and official type test certificate.

    Latest Blogs

    News

    HY Transformer Expands Overseas Project Layout, Successfully Serves European Municipal Grid Projects

    HY Transformer has further expanded its global engineering layout in 2026, completing the batch delivery and stable operation of customized power transformer equipment for urban municipal grid projects in Poland, marking a new breakthrough in the brand's overseas high-end municipal power supply mark

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    The Advantages Of Low-Loss Energy-Saving Transformers In Modern Power Distribution Systems

    With the global popularization of smart grids and the continuous improvement of energy-saving and emission-reduction standards, low-loss energy-saving transformers have gradually become the mainstream choice for modern municipal power distribution, industrial park power supply and new energy support

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    How To Effectively Maintain Power Transformers To Extend Service Life

    Power transformers are the core key equipment of power distribution systems, and their operating stability directly affects the safety and continuity of the entire power supply system. Most transformers have a designed service life of 20 to 30 years, but unscientific operation and irregular maintena

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    • Q Are you a manufacturer or trading company?

      A English We are a professional direct manufacturer with independent factory, complete production lines and strict QC workshop. OEM & ODM customization is available, and factory inspection is warmly welcomed.
    • Q What certifications do your transformers have?

      A English Our products pass ISO9001, IEC international standard, GB national standard, CE, SABS, CoC, G-CAP and third-party test reports from BV & TUV. We can apply for country-specific certificates as per your local import requirements.
    • Q Can you issue formal proforma invoice & customs documents?

      A English We can provide full set of customs documents including Proforma Invoice, Commercial Invoice, Packing List, Bill of Lading, Certificate of Origin and Declaration of Conformity.
    • Q What voltage grades can you produce?

      A English Available voltage levels: 6kV/10kV/20kV/33kV/35kV/110kV/220kV; secondary voltage such as 0.4kV, 0.23kV can be customized.
    Get A Quote
    HY TRANSFORMER is a high-tech enterprise specializing in the development, production and sales of power transformers and related products.

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    Contact Us

     +86 170 8786 8880
    +85270279708
     +86-17626475519 / +86-17087868880
     36 Gaoxin Rd, Xuzhou Economic Zone, Jiangsu, China
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