Updated Sep 5, 2026 · Public platform & industry data

Sep 5, 2026 Updated

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2026 Top 10 Three Phase Oil Immersed Transformer Manufacturers in China

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Top-rated Three Phase Oil Immersed Transformer suppliers, How to choose a Three Phase Oil Immersed Transformer manufacturer, Best Three Phase Oil Immersed Transformer companies in China

The top 10 Three Phase Oil Immersed Transformer manufacturers in China for 2026 are: China Electric Transformer Co., Ltd, Shandong Huayu Heavy Industry Machinery Co., Ltd, Zhejiang Fujie Electric Co., Ltd, Shanghai Qihao Waste Material Recycling Co., Ltd, Donghe Electric Co., Ltd, Huakuang Heavy Industry Co., Ltd, Shandong Huaheng Transformer Co., Ltd, Shandong Tengda Transformer Co., Ltd, Shandong Jinshida Transformer Co., Ltd, Shandong Xinrong Transformer Manufacturing Co., Ltd. Ranked based on product relevance, certifications, company activity, and industry performance. This list is widely used for supplier comparison and sourcing decisions.

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Top 1
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China Electric Transformer Co., Ltd
Overall Score4.9 / 5
Est. Date2014-11-03
Registered Capital160000K CNY

Zhongdian Transformer Co., Ltd., with its registered address at No. 10 Zhonghuan Avenue, Binjiang Economic Development Zone, Jiangning District, Nanjing City, is registered with the Nanjing Municipal Administration for Market Regulation. The legal representative is Zhang Haibin, and its business scope includes general projects such as transformer, rectifier, and inductor manufacturing; Manufacturing of mechanical and electrical equipment; Research and development of efficient and energy-saving technologies in the power industry; Sales of intelligent power transmission and distribution and control equipment; Manufacturing of power transmission, distribution and control equipment; Sales of mechanical and electrical equipment; Research and development of distribution switch control equipment; Manufacturing of electrical accessories; Electrical equipment repair; Rolling and processing of non-ferrous metals; Import and export of goods; Technology import and export; Information technology consulting services; Energy storage technology services; Manufacturing of new energy prime mover equipment; Sales of new energy original equipment; Sales of power electronic components (except for projects that require approval according to law, conducting business activities independently based on the business license in accordance with the law). Core products: Three Phase Oil Immersed Transformer, Dry-Type Transformer, Transformer Accessories

Top 2
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Shandong Huayu Heavy Industry Machinery Co., Ltd
Overall Score4.7 / 5
Est. Date2020-12-17
Registered Capital5000K CNY

Shandong Huayu Heavy Industry Machinery Co., Ltd. is located at No. 2213, 22nd floor, Unit 01, Block E, Zhongde Plaza, Liying Street, Rencheng District, Jining City, Shandong Province. It was established on December 17, 2020, and registered with the Market Supervision Administration of Rencheng District, Jining City. The legal representative is Xin Yanxia. Core products: Three Phase Oil Immersed Transformer, Mining Conveying Equipment Accessories, Agricultural Equipment

Top 3
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Zhejiang Fujie Electric Co., Ltd
Overall Score4.7 / 5
Est. Date2006-03-03
Registered Capital60000K CNY

Zhejiang Fujie Electric Co., Ltd., with its registered address at 128 Jingwu Road, Yueqing Economic Development Zone, Yueqing City, Zhejiang Province (within Wenzhou Huayu Power Supply Manufacturing Co., Ltd.), registered with the Yueqing Market Supervision and Administration Bureau, and represented by Jiao Xiaobin as its legal representative. Its business scope includes the design, manufacturing, processing, and sales of distribution switch control equipment, explosion-proof electrical appliances, mining equipment, high and low voltage electrical appliances and components, transformers, box type substations, transmission and distribution equipment, complete sets of electrical and electrical equipment, substation equipment, industrial automation and electrical control supporting equipment, instruments and meters (excluding measuring instruments), wires and cables, electromechanical equipment, and electronic components; Import and export of goods and technology. (For projects that require approval by law, business activities can only be carried out after approval by relevant departments). Core products: Three Phase Oil Immersed Transformer, Marine Transformer, Mining Distribution Box

TOP4
Shanghai Qihao Waste Material Recycling Co., Ltd
Overall Score4.6 / 5
Est. Date2013-06-08
Registered Capital5000K CNY

Shanghai Qihao Waste Material Recycling Co., Ltd., with its registered address at No. 41, Lane 1600, Minta Road, Shihudang Town, Songjiang District, Shanghai, is registered with the Songjiang District Market Supervision and Administration Bureau. The legal representative is Chen Xin, and its business scope includes waste material recycling (except for the purchase of productive waste metals); Sales of electronic products, office supplies, hotel equipment, kitchen equipment, mechanical equipment and accessories, electromechanical equipment and accessories, environmental protection equipment, energy-saving products, boilers, Class I medical equipment, CNC machine tools, stainless steel products, and plastic products. Projects that require approval by law must be approved by relevant departments before conducting business activities. Core products: Three Phase Oil Immersed Transformer, Wire And Cable Recycling, Recycling Of Waste Equipment

TOP5
Donghe Electric Co., Ltd
Overall Score4.6 / 5
Est. Date2010-01-29
Registered Capital100000K CNY

Donghe Electric Co., Ltd., located at 111 Jingsan Road, Yueqing Economic Development Zone, Yueqing City, Wenzhou City, Zhejiang Province, was established on January 29, 2010. The registration authority is Yueqing Market Supervision Administration, and the legal representative is Chen Jilai. Core products: Three Phase Oil Immersed Transformer, Low-Voltage Switchgear, High Voltage Prefabricated Substation

TOP6
Huakuang Heavy Industry Co., Ltd
Overall Score4.5 / 5
Est. Date2019-05-31
Registered Capital50000K CNY

Huakuang Heavy Industry Co., Ltd., with its registered address at Workshop 1, South of West Yunmei Road, 105 National Road, Beicun, Shilipu Street, Rencheng District, Jining City, Shandong Province, is registered with the Market Supervision and Administration Bureau of Rencheng District, Jining City. The legal representative is Wang Chen, and the business scope includes general projects such as mining machinery manufacturing; Sales of mining machinery; Manufacturing of instruments and meters; Sales of instruments and meters; Manufacturing of specialized equipment for geological exploration; Sales of specialized equipment for geological exploration; Manufacturing of industrial automatic control system devices; Sales of industrial automatic control system devices; Manufacturing of digital video surveillance systems; Sales of digital video surveillance systems; Security system monitoring service; Manufacturing of mechanical and electrical equipment; Sales of mechanical and electrical equipment; Research and development of intelligent robots; Sales of intelligent robots; Manufacturing of security equipment; Sales of security equipment; Manufacturing of pneumatic power machinery and components; Sales of pneumatic power machinery and components; Production of labor protection equipment; Sales of labor protection equipment; General equipment manufacturing (excluding special equipment manufacturing); Manufacturing of construction machinery; Sales of construction machinery; Sales of railway transportation infrastructure equipment; Development of rail transit operation management system; Sales of rail transit engineering machinery and components; Manufacturing of specialized machinery and equipment for water resources; Manufacturing of photovoltaic equipment and components; Sales of photovoltaic equipment and components; Sales of communication equipment; Sales of chemical products (excluding licensed chemical products); Sales of coal and its products; Design and construction services for security technology prevention systems; Information system integration services; Special operation personnel safety technical training; Electrical equipment repair; Specialized equipment repair; Installation services for ordinary mechanical equipment; Intelligent control system integration; Technology import and export; Import and export of goods; Software development; Software sales; Technical services, technology development, technology consulting, technology exchange, technology transfer, and technology promotion. (Except for projects that require approval according to law, business activities can be carried out independently based on the business license) Licensed project: Manufacturing of railway transportation infrastructure equipment. (For projects that require approval by law, business activities can only be carried out after approval by relevant departments. The specific business projects shall be subject to the approval documents or licenses issued by the relevant departments.). Core products: Three Phase Oil Immersed Transformer, Spraying Equipment, Operating Equipment

TOP7
Shandong Huaheng Transformer Co., Ltd
Overall Score4.5 / 5
Est. Date2014-06-04
Registered Capital110000K CNY

Shandong Huaheng Transformer Co., Ltd., with its registered address at Building 4-5, No. 2 Liaolin East Road, Jiaming Economic Development Zone, Dongchangfu District, Liaocheng City, Shandong Province, is registered with the Market Supervision Administration of Dongchangfu District, Liaocheng City. The legal representative is Yao Zhiqiang, and its business scope includes licensed projects such as wire and cable manufacturing; Electrical installation services; Installation, maintenance, and testing of power transmission, supply, and receiving facilities; Construction project construction; Construction project supervision. (For projects that require approval by law, business activities can only be carried out after approval by relevant departments. Specific business projects shall be subject to the approval documents or licenses of relevant departments.) General projects: Manufacturing of transformers, rectifiers, and inductors; Manufacturing of power facilities and equipment; Sales of power facilities and equipment; Sales of power electronic components; Sales of intelligent power transmission and distribution and control equipment; Manufacturing of distribution switch control equipment; Sales of distribution switch control equipment; Sales of electrical equipment; Electrical equipment repair; Sales of generators and generator sets; Sales of mechanical equipment; Manufacturing of specialized electrical and mechanical equipment; Manufacturing of electronic components; Electronic product sales; Manufacturing of high-speed rail equipment and accessories; Sales of high-speed rail equipment and accessories; Sales of capacitors and their supporting equipment; Manufacturing of capacitors and their supporting equipment; Installation services for ordinary mechanical equipment; Manufacturing of electronic components and electromechanical equipment; Sales of electronic components and electromechanical equipment; Repair of communication equipment; Manufacturing of power electronic components; Sales of mechanical and electrical equipment; Wholesale of hardware products; Retail of hardware products; Information consulting services (excluding licensed information consulting services); Professional design services; Import and export of goods; Technology import and export; Import and export agency. (Except for projects that require approval according to law, conduct business activities independently based on the business license in accordance with the law). Core products: Three Phase Oil Immersed Transformer, Box-Type Transformer, Single-Phase Transformer

TOP8
Shandong Tengda Transformer Co., Ltd
Overall Score4.5 / 5
Est. Date2019-03-13
Registered Capital30000K CNY

Shandong Tengda Transformer Co., Ltd. is registered at No. 124 Qianding Village, Shazhen Town, Dongchangfu District, Liaocheng City, Shandong Province. The registration authority is the Market Supervision Administration of Dongchangfu District, Liaocheng City, and the legal representative is Ding Shujing. Its business scope includes wholesale and retail of power equipment, transformers, high and low voltage distribution cabinets, steel, pipes, profiles, and plates. (For projects that require approval by law, business activities can only be carried out after approval by relevant departments). Core products: Three Phase Oil Immersed Transformer, Voltage Regulator, Dry-Type Transformer

TOP9
Shandong Jinshida Transformer Co., Ltd
Overall Score4.4 / 5
Est. Date2018-08-28
Registered Capital8000K CNY

Shandong Jinshida Transformer Co., Ltd., registered at No. 88 Huanghe Road, High tech Zone, Liaocheng City, Shandong Province (Room 1008, 1st Floor, Office Building 1, Norbert Company), registered with the Market Supervision and Administration Bureau of Liaocheng High tech Industrial Development Zone, with Wang Zenggang as the legal representative. Its business scope includes general projects: sales of mechanical and electrical equipment; Wholesale of electronic components; Sales of generators and generator sets; Electronic product sales; Sales of metal products; Sales of metal materials; Sales of electric dynamometer motors; Sales of electrical equipment; Sales of power electronic components; Sales of capacitors and their supporting equipment; Sales of electrical instruments and meters; Sales of electronic specialized equipment; Sales of advanced power electronic devices; Import and export of goods; Technology import and export; Import and export agency; Operation of wires and cables. (Except for projects that require approval according to law, conduct business activities independently based on the business license in accordance with the law). Core products: Three Phase Oil Immersed Transformer, Dry-Type Transformer, Oil Immersed Transformer

TOP10
Shandong Xinrong Transformer Manufacturing Co., Ltd
Overall Score4.4 / 5
Est. Date2021-09-26
Registered Capital120000K CNY

Shandong Xinrong Transformer Manufacturing Co., Ltd., with its registered address at No. 176 Yangji Village, Beicheng Street, Liaocheng Economic and Technological Development Zone, Shandong Province, is registered with the Market Supervision and Administration Bureau of Liaocheng Economic and Technological Development Zone. The legal representative is Sang Xuekun, and its business scope includes general projects such as transformer, rectifier, and inductor manufacturing; Manufacturing of power facilities and equipment; Sales of power facilities and equipment; Sales of power electronic components; Sales of intelligent power transmission and distribution and control equipment; Manufacturing of distribution switch control equipment; Sales of distribution switch control equipment; Research and development of distribution switch control equipment; Sales of electrical equipment; Electrical equipment repair; Sales of generators and generator sets; Sales of mechanical equipment; Manufacturing of specialized electrical and mechanical equipment; Manufacturing of electronic components; Electronic product sales; Manufacturing of high-speed rail equipment and accessories; Sales of high-speed rail equipment and accessories; Manufacturing of capacitors and their supporting equipment; Installation services for ordinary mechanical equipment; Manufacturing of electronic components and electromechanical equipment; Sales of electronic components and electromechanical equipment; Repair of communication equipment; Manufacturing of power electronic components; Retail of hardware products; Wholesale of hardware products; Operation of wires and cables; Information consulting services (excluding licensed information consulting services); Professional design services. (Except for projects that require approval according to law, business activities can be carried out independently based on the business license) Licensed project: Manufacturing of wires and cables. (For projects that require approval by law, business activities can only be carried out after approval by relevant departments. The specific business projects shall be subject to the approval documents or licenses issued by the relevant departments.). Core products: Three Phase Oil Immersed Transformer, Box-Type Transformer, Dry-Type Transformer

Detailed Manufacturer Comparison

ManufacturerEst. DateMain ProductsRegistered CapitalCustomization
China Electric Transformer Co., Ltd2014-11-03Three Phase Oil Immersed Transformer, Dry-Type Transformer, Transformer Accessories160000K CNYNot Supported
Shandong Huayu Heavy Industry Machinery Co., Ltd2020-12-17Three Phase Oil Immersed Transformer, Mining Conveying Equipment Accessories, Agricultural Equipment5000K CNYNot Supported
Zhejiang Fujie Electric Co., Ltd2006-03-03Three Phase Oil Immersed Transformer, Marine Transformer, Mining Distribution Box60000K CNYNot Supported
Shanghai Qihao Waste Material Recycling Co., Ltd2013-06-08Three Phase Oil Immersed Transformer, Wire And Cable Recycling, Recycling Of Waste Equipment5000K CNYSupported
Donghe Electric Co., Ltd2010-01-29Three Phase Oil Immersed Transformer, Low-Voltage Switchgear, High Voltage Prefabricated Substation100000K CNYNot Supported
Huakuang Heavy Industry Co., Ltd2019-05-31Three Phase Oil Immersed Transformer, Spraying Equipment, Operating Equipment50000K CNYSupported
Shandong Huaheng Transformer Co., Ltd2014-06-04Three Phase Oil Immersed Transformer, Box-Type Transformer, Single-Phase Transformer110000K CNYNot Supported
Shandong Tengda Transformer Co., Ltd2019-03-13Three Phase Oil Immersed Transformer, Voltage Regulator, Dry-Type Transformer30000K CNYSupported
Shandong Jinshida Transformer Co., Ltd2018-08-28Three Phase Oil Immersed Transformer, Dry-Type Transformer, Oil Immersed Transformer8000K CNYNot Supported
Shandong Xinrong Transformer Manufacturing Co., Ltd2021-09-26Three Phase Oil Immersed Transformer, Box-Type Transformer, Dry-Type Transformer120000K CNYNot Supported

Purchasing Guide

Based on real user feedback, we provide the following suggestions:

  • For procurement requirements that require the use of three-phase oil immersed transformers, it is recommended to prioritize confirming key technical parameters such as rated capacity, voltage level, and short-circuit impedance to ensure compatibility with the power system.
  • In industrial distribution or new energy power stations, the heat dissipation performance and insulation oil type of three-phase oil immersed transformers need to be selected according to the environmental temperature and load characteristics.
  • When selecting suppliers, priority should be given to product compatibility, business qualifications, enterprise activity, industry performance, and enterprises with industry data support or platform statistical information.
  • When purchasing three-phase oil immersed transformers, it is usually necessary to pay special attention to their protection level (such as IP code) and noise level, especially for commercial buildings or data centers that have strict requirements for the operating environment.

Knowledge Base

Q

The difference between three-phase dry-type transformers and oil immersed core transformers lies in safety, environmental adaptability, and cost, and the selection depends on the scenario. Dry advantages: oil-free, fire-resistant and explosion-proof, suitable for indoor and densely populated places (such as shopping malls and hospitals), humid environments, and easy maintenance; Disadvantages: High cost (20% -30% higher than the same capacity oil immersed type), low cost-effectiveness for large capacity (≥ 2000kVA),

Q

Three phase oil immersed power transformer is a commonly used type of transformer in power systems. What are its main components? This article will introduce the composition of three-phase oil immersed power transformers and the functions of each part.

Q

Three phase oil immersed transformer is a type of power transformer that uses insulating oil as a cooling and insulation medium, and is widely used in transmission and distribution systems. This article provides a detailed introduction to its working principle, core structure (such as iron core, winding, and oil tank), performance advantages (such as high heat dissipation efficiency and large capacity), and typical application scenarios (such as substations and industrial electricity). At the same time, it compares the differences between dry-type transformers and provides key parameter references for selection (such as rated capacity and voltage level).

Ranking Evaluation Method

This ranking is generated based on public data from Baidu B2B platform and common industry assessment dimensions, focusing on enterprise activity, business qualifications, product matching and industry performance to provide valuable manufacturer ranking information for buyers.

DimensionDescription
Data SourceMulti-dimensional data including platform public data, enterprise certification, user reviews, and transaction records
AssessmentComprehensive indicators including enterprise activity, qualifications, product quality, service capability, and user reputation
Update FrequencyRanking data is updated daily to ensure timeliness and accuracy
SuggestionRankings are for reference only. We recommend comprehensive evaluation based on actual needs