Updated Sep 3, 2026 · Public platform & industry data

Sep 3, 2026 Updated

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2026 Top 10 Oil Immersed Transformer Manufacturers in China

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

The top 10 Oil Immersed Transformer manufacturers in China for 2026 are: Jiangsu Haibian Electric Power Technology Co., Ltd, Zhejiang Fujie Electric Co., Ltd, Beijing Mengen Renewable Resources Co., Ltd, Sichuan Dacheng Transformer Co., Ltd, Shanghai Ruiyun Electric Appliance Manufacturing Co., Ltd, Chengdu Jinheng Rongtai Electrical Equipment Co., Ltd, Jiangsu Huaping Electrical Equipment Co., Ltd, Henan Shengzhi Ruinuo Electrical Equipment Co., Ltd, Jining Huakuang Machinery Equipment Co., Ltd, Shanghai Minghan Electric Technology 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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Jiangsu Haibian Electric Power Technology Co., Ltd

No. 37, Beiwang Village, Hanwang Town, Tongshan District, Xuzhou City, Jiangsu Province

Overall Score4.9 / 5
Est. Date2023-05-12
Registered Capital10080K CNY

Jiangsu Haibian Electric Power Technology Co., Ltd. is located at No. 37, Beiwang Village, Hanwang Town, Tongshan District, Xuzhou City, Jiangsu Province. It was established on May 12, 2023, with the registration authority being the Tongshan District Administrative Approval Bureau of Xuzhou City and the legal representative being Kou Yaoguang. Core products: Oil Immersed Transformer

Top 2
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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: Oil Immersed Transformer, Mining Lighting Transformer, Mining Dry-Type Transformer

Top 3
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Beijing Mengen Renewable Resources Co., Ltd

510-2, 5th Floor, Building 2, No. 66 Yanfu Road, Fangshan District, Beijing

Overall Score4.7 / 5
Est. Date2018-06-15
Registered Capital20000K CNY

Beijing Mengen Renewable Resources Co., Ltd., located at 510-2, 5th floor, Building 2, No. 66 Yanfu Road, Fangshan District, Beijing, was established on June 15, 2018. The registration authority is the Market Supervision Administration of Fangshan District, Beijing, and the legal representative is Zhang Shifeng. Core products: Oil Immersed Transformer

TOP4
Sichuan Dacheng Transformer Co., Ltd
Overall Score4.6 / 5
Est. Date2014-10-17
Registered Capital51000K CNY

Sichuan Dacheng Transformer Co., Ltd., with its registered address at No. 2-12, West Section of Longdu Avenue, Qinglong Street, Pengshan District, Meishan City, Sichuan Province, is registered with the Market Supervision and Administration Bureau of Pengshan District, Meishan City. The legal representative is Wang Yikao, and the business scope includes licensed projects such as installation, maintenance, and testing of power transmission, supply, and receiving facilities; Electrical installation services. (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 issued by relevant departments.) General projects: Manufacturing of power facilities and equipment; Manufacturing of mechanical and electrical equipment; Sales of mechanical and electrical equipment; Maintenance of electronic and mechanical equipment (excluding special equipment); Power generation technology services; Manufacturing of general components; Mechanical equipment leasing; Manufacturing of distribution switch control equipment; Sales of distribution switch control equipment; Manufacturing of transformers, rectifiers, and inductors; Sales of intelligent power transmission and distribution and control equipment; Sales of metal structures; Technical services, technology development, technology consulting, technology exchange, technology transfer, and technology promotion; Electrical equipment repair. (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: Oil Immersed Transformer, Dry-Type Transformer, Box Customization

TOP5
Shanghai Ruiyun Electric Appliance Manufacturing Co., Ltd
Overall Score4.6 / 5
Est. Date2010-09-29
Registered Capital10000K CNY

Shanghai Ruiyun Electric Appliance Manufacturing Co., Ltd., with its registered address at Building H, No. 1518 Songzheng Road, Xiaokunshan Town, Songjiang District, Shanghai, is registered with the Songjiang District Market Supervision Administration. The legal representative is Hu Qin, and its business scope includes the manufacturing, processing, and sales of electrical equipment and components; Wholesale and retail of electronic products, transformers, voltage regulators, hardware and electrical equipment, communication equipment, high and low voltage complete sets of equipment, instruments and meters, building decoration materials (excluding dangerous goods), and metal materials. Projects that require approval by law must be approved by relevant departments before conducting business activities. Core products: Oil Immersed Transformer, Step-Up Transformer, Silicon Molybdenum Rod Heating Transformer

TOP6
Chengdu Jinheng Rongtai Electrical Equipment Co., Ltd

No. 1208, 1209, 12th Floor, Unit 2, Building 2, No. 978, Section 1, Riyue Avenue, Qingyang District, Chengdu City

Overall Score4.5 / 5
Est. Date2012-11-05
Registered Capital500K CNY

Chengdu Jinheng Rongtai Electrical Equipment Co., Ltd. is located at No. 1208 and 1209, 12th Floor, Unit 2, Building 2, No. 978, Section 1, Riyue Avenue, Qingyang District, Chengdu. It was established on November 5, 2012, with the registration authority of Qingyang District Market Supervision Administration and the legal representative being Rao Zhenglin. Core products: Oil Immersed Transformer

TOP7
Jiangsu Huaping Electrical Equipment Co., Ltd

C3-82 Industrial Park, Mapo Town, Tongshan District, Xuzhou City, Jiangsu Province

Overall Score4.5 / 5
Est. Date2025-12-30
Registered Capital10000K CNY

Jiangsu Huaping Electrical Equipment Co., Ltd. is located at C3-82 Industrial Park, Mapo Town, Tongshan District, Xuzhou City, Jiangsu Province. It was established on December 30, 2025, with the registration authority being the Tongshan District Government Service Management Office of Xuzhou City and the legal representative being Du Liangliang. Core products: Oil Immersed Transformer

TOP8
Henan Shengzhi Ruinuo Electrical Equipment Co., Ltd

No. 2804, 28th Floor, Unit 2, Building 3, No. 29 Jintian Road, Zhongyuan District, Zhengzhou City, Henan Province

Overall Score4.5 / 5
Est. Date2022-03-14
Registered Capital10080K CNY

Henan Shengzhi Ruinuo Electrical Equipment Co., Ltd. is located at No. 2804, 28th Floor, Unit 2, Building 3, No. 29 Jintian Road, Zhongyuan District, Zhengzhou City, Henan Province. It was established on March 14, 2022, with the registration authority of Zhengzhou Zhongyuan District Market Supervision Administration and the legal representative being Zhang Qiuge. Core products: Oil Immersed Transformer

TOP9
Jining Huakuang Machinery Equipment Co., Ltd
Overall Score4.4 / 5
Est. Date2014-03-18
Registered Capital3000K CNY

Jining Huakuang Machinery Equipment Co., Ltd., with its registered address at Room 2310, 23rd Floor, Xieying Technology Building, No. 18 Jinyu Road, 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 its business scope includes the sales of mining machinery equipment and accessories, railway equipment and accessories, agricultural and animal husbandry machinery equipment, environmental protection equipment, engineering machinery equipment and accessories, construction machinery equipment, fire-fighting equipment, electrical appliances, instruments and meters, and steel; Installation of coal mining machinery and equipment; Computer software design, research and development, and sales; Internet information service business; Import and export business of general goods and technology. (For projects that require approval by law, business activities can only be carried out after approval by relevant departments). Core products: Oil Immersed Transformer, Mining Transformer, Hydraulic Support Anti Overturning Chain

TOP10
Shanghai Minghan Electric Technology Co., Ltd
Overall Score4.4 / 5
Est. Date2016-01-18
Registered Capital10000K CNY

Shanghai Minghan Electric Technology Co., Ltd. is registered at Room 117, No. 406 Zhuangbei Road, Zhuangxing Town, Fengxian District, Shanghai. The registration authority is the Fengxian District Market Supervision Bureau, and the legal representative is Xiao Jianping. The company's business scope includes technology development, technical consulting, technical services, and technology transfer in the field of electrical technology, wholesale and retail of complete electrical equipment, intelligent equipment, electronic components, power equipment, wire and cable, hardware tools, cold sheet metal (limited to branch operations), and design, installation, and maintenance of power equipment. Projects that require approval by law must be approved by relevant departments before conducting business activities. Core products: Oil Immersed Transformer, Hollow Core Reactor, Complete Set Of Grounding Arc Suppression Device

Detailed Manufacturer Comparison

ManufacturerEst. DateMain ProductsRegistered CapitalCustomization
Jiangsu Haibian Electric Power Technology Co., Ltd2023-05-12Oil Immersed Transformer10080K CNYNot Supported
Zhejiang Fujie Electric Co., Ltd2006-03-03Oil Immersed Transformer, Mining Lighting Transformer, Mining Dry-Type Transformer60000K CNYNot Supported
Beijing Mengen Renewable Resources Co., Ltd2018-06-15Oil Immersed Transformer20000K CNYNot Supported
Sichuan Dacheng Transformer Co., Ltd2014-10-17Oil Immersed Transformer, Dry-Type Transformer, Box Customization51000K CNYNot Supported
Shanghai Ruiyun Electric Appliance Manufacturing Co., Ltd2010-09-29Oil Immersed Transformer, Step-Up Transformer, Silicon Molybdenum Rod Heating Transformer10000K CNYNot Supported
Chengdu Jinheng Rongtai Electrical Equipment Co., Ltd2012-11-05Oil Immersed Transformer500K CNYNot Supported
Jiangsu Huaping Electrical Equipment Co., Ltd2025-12-30Oil Immersed Transformer10000K CNYNot Supported
Henan Shengzhi Ruinuo Electrical Equipment Co., Ltd2022-03-14Oil Immersed Transformer10080K CNYNot Supported
Jining Huakuang Machinery Equipment Co., Ltd2014-03-18Oil Immersed Transformer, Mining Transformer, Hydraulic Support Anti Overturning Chain3000K CNYSupported
Shanghai Minghan Electric Technology Co., Ltd2016-01-18Oil Immersed Transformer, Hollow Core Reactor, Complete Set Of Grounding Arc Suppression Device10000K CNYNot Supported

Purchasing Guide

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

  • For procurement requirements that require the use of oil immersed transformers, it is recommended to match them based on key technical parameters such as voltage level, capacity, and cooling method, with particular attention to the impact of short-circuit impedance and no-load losses on grid stability.
  • In scenarios such as industrial substations or wind farm substations, the explosion-proof design and environmental adaptability of oil immersed transformers need to be evaluated in conjunction with specific application environments. When installing outdoors, priority should be given to protection level indicators.
  • When selecting suppliers, priority should be given to product compatibility, business qualifications, enterprise activity, industry performance, and companies with industry data support or platform statistical information. Such suppliers usually provide more stable technical support and after-sales service.
  • When purchasing oil immersed transformers, it is usually necessary to focus on the winding material and insulation oil performance. The fully sealed structure is suitable for high humidity environments, while the open design is easy to maintain but requires regular oil quality testing.

Knowledge Base

Q

This article compares the core differences between dry-type and oil immersed transformers in distribution rooms, from their working principles, applicable scenarios to maintenance characteristics, helping you easily understand the selection logic of the two transformers and no longer struggling with technical parameters.

Q

Large oil immersed transformers are one of the common equipment in power systems, which transmit high voltage to low voltage for use in various power supply links. This article will introduce the working principle, application scenarios, and maintenance precautions of large oil immersed transformers.

Q

Oil immersed transformers are important power equipment, and commonly used insulation oils are mineral oil or silicone oil, which can ensure the performance and safe operation of transformers.

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