China Factory Rank

Distribution equipment · 自耦变压器

Autotransformer Manufacturers & Suppliers in China (2026)

8 Chinese manufacturers and suppliers of autotransformers (自耦变压器), ranked by their registration, contact and product data, plus 2 international brands that make or sell them in China.

10Companies listed
10With official website
6With published email
8Provinces (profiled)
1959Earliest founding year

Ranked autotransformer manufacturers

How this list is ranked
  1. 01

    Baobian Electric

    保变电气

    Baoding, Hebei

    • Power transformers
    • Converter transformers
    • Phase-shifting transformers

    Registered legal entity on file; email and phone published.

    View profile →
  2. 02

    XD Electric

    西电XD

    Xi’an, Shaanxi · Est. 1959

    • High-voltage switches
    • Transformers
    • Reactors

    Registered legal entity on file; email and phone published; operating since 1959.

    View profile →
  3. 03

    Taikai

    泰开TK

    Tai’an, Shandong

    • High-voltage switchgear
    • Circuit breakers
    • Transformers

    Registered legal entity on file; email and phone published.

    View profile →
  1. 04

    Huapeng Transformer 华鹏变压器 Full profile

    Liyang, Jiangsu · Est. 1967 · Chinese manufacturer

    Power and specialty transformers with energy storage solutions.

    • Oil-immersed transformers
    • Dry-type transformers
    • Converter transformers
    • Rectifier transformers
    • Reactors
    • Energy storage systems

    Why it ranks here: registered legal entity on file; phone published; operating since 1967.

  2. 05

    SDEE 山东电工 Full profile

    Jinan, Shandong · Chinese manufacturer

    Transmission equipment and integrated electrical engineering services.

    • Transformers
    • Gas-insulated equipment
    • Transmission towers
    • Wire and cable
    • Digital grid systems
    • Energy management equipment

    Why it ranks here: registered legal entity on file; phone published.

  3. 06

    TBEA 特变电工 Full profile

    Changji, Xinjiang · Est. 1988 · Chinese manufacturer

    Transmission equipment, transformers and renewable energy projects.

    • Power transformers
    • Wire and cable
    • High-voltage switches
    • Electrical components
    • Solar and wind equipment
    • Turnkey power systems

    Why it ranks here: registered legal entity on file; phone published; operating since 1988.

  4. 07

    Wu Shui Pai 吴水牌

    Suzhou, Jiangsu · Est. 1970 · Registered Chinese company

    Registered as 吴江变压器有限公司 in 1987.

    • Autotransformers

    Why it ranks here: registered legal entity on file; email and phone published; operating since 1970.

  5. 08

    Yun Bian Dian Qi 云变电气

    Kunming, Yunnan · Registered Chinese company

    Registered as 云南变压器电气股份有限公司 in 1999.

    • Autotransformers

    Why it ranks here: registered legal entity on file; email and phone published.

International autotransformer brands in China

Foreign-owned groups with Chinese manufacturing or sales companies. Listed separately so the ranking above covers Chinese manufacturers only.

  1. INT

    Siemens Energy 西门子能源 Full profile

    Shanghai, China office · International brand, China operations

    Energy technology across generation, grids and storage.

    • Transformers
    • Grid technologies
    • Gas turbines
    • Generation equipment
    • Energy storage technologies
    • Industrial electrification

    Why it ranks here: registered legal entity on file; email and phone published.

  2. INT

    Hitachi Energy 日立能源 Full profile

    Beijing, China office · Est. 2021 · International brand, China operations

    Grid technologies, transformers and high-voltage systems.

    • Transformers
    • High-voltage equipment
    • Vacuum circuit breakers
    • HVDC systems
    • Grid automation
    • Asset management software

    Why it ranks here: registered legal entity on file; phone published; operating since 2021.

Comparison table

#CompanyProvinceEst.Registered company
01Baobian Electric保变电气Hebei—Baoding Tianwei Baobian Electric Co., Ltd.
02XD Electric西电XDShaanxi1959China XD Group Co., Ltd.
03Taikai泰开TKShandong—Taikai Group Co., Ltd.
04Huapeng Transformer华鹏变压器Jiangsu1967Jiangsu Huapeng Transformer Co., Ltd.
05SDEE山东电工Shandong—Shandong Electrical Engineering & Equipment Group Co., Ltd.
06TBEA特变电工Xinjiang1988TBEA Co., Ltd.
07Wu Shui Pai吴水牌Jiangsu1970吴江变压器有限公司
08Yun Bian Dian Qi云变电气Yunnan—云南变压器电气股份有限公司

Frequently asked questions

How many autotransformers manufacturers and suppliers in China are listed here?

10 companies are listed for autotransformers (自耦变压器). 8 Chinese manufacturers have full profiles and are ranked; 2 international brands with China operations are listed separately.

Where are China's autotransformers manufacturers located?

Among profiled companies: Shandong (2), Jiangsu (2), Hebei (1), Shaanxi (1), Xinjiang (1).

How is this list ranked?

By the completeness and verifiability of each company's data: a registered legal entity, an official website, published contact details, a product range and company history. The rank is not a quality rating, and no company pays for its position. See How we rank for the full method.

How do I contact these manufacturers?

Each listing shows the company's official website and, where published, its email and phone number. Of the 10 companies listed, 10 have an official website and 6 publish an email address.