Updated Sep 1, 2026 · Public platform & industry data

Sep 1, 2026 Updated

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2026 Top 10 Ac Current Transformer Manufacturers in China Shanghai

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Top-rated Ac Current Transformer suppliers, How to choose a Ac Current Transformer manufacturer, Best Ac Current Transformer companies in China

The top 10 Ac Current Transformer manufacturers in Shanghai for 2026 are: Ankerui Electric Co., Ltd, Shanghai Jingmin Electric Co., Ltd, Shanghai Changkai Electric Appliance Co., Ltd, Shanghai Qinuo Electromechanical Technology Co., Ltd, Shanghai Aiyou Automation Technology Co., Ltd, Shenmo (Shanghai) Automation Equipment Co., Ltd, Shanghai Sapo Electromechanical Control System Co., Ltd, Shanghai Jidu Electric Technology Co., Ltd, Beiying Electronic Technology (Shanghai) Co., Ltd, Shanghai Yukai Electric Power 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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Ankerui Electric Co., Ltd
Overall Score4.9 / 5
Est. Date2003-06-23
Registered Capital250784.65499999997K CNY

Ankerui Electric Co., Ltd., with its registered address at No. 253 Yulu Road, Jiading District, Shanghai, is registered with the Shanghai Municipal Administration for Market Regulation. The legal representative is Zhou Zhong, and its business scope includes general projects: manufacturing of electrical instruments and meters; Manufacturing of intelligent instruments and meters; Manufacturing of capacitors and their supporting equipment; Manufacturing of transformers, rectifiers, and inductors; Manufacturing of power transmission, distribution and control equipment; Manufacturing of power electronic components; Manufacturing of lighting fixtures; Manufacturing of electrical signal equipment devices; Manufacturing of IoT devices; Manufacturing of industrial automatic control system devices; Manufacturing of distribution switch control equipment; Manufacturing of atmospheric pollution monitoring and detection instruments and meters; Manufacturing of specialized instruments and meters for environmental monitoring; Research and development of Internet of Things technology; Internet of Things technology services; Internet data service; Internet of Things application services; Software development; Information system integration services; Information system operation and maintenance services; Information technology consulting services; Computer system services; Industrial Internet data service; Manufacturing of information security equipment; Engineering management services; Technical services, technology development, technology consulting, technology exchange, technology transfer, and technology promotion; Energy saving management services; Contract energy management; Energy storage technology services; Engineering and technical research and experimental development; Engineering and technical services (excluding planning management, survey, design, and supervision); Sales of charging stations; Sales of intelligent power transmission and distribution and control equipment; Sales of distribution switch control equipment; Sales of industrial automatic control system devices; Sales of capacitors and their supporting equipment; Sales of electrical signal equipment devices; Sales of power electronic components; Sales of electrical instruments and meters; Software sales; Sales of intelligent instruments and meters; Sales of lighting fixtures; Sales of IoT devices; Sales of information security equipment. (Except for projects that require approval according to law, business activities can be carried out independently based on the business license.) Licensed project: sales of specialized products for computer information system security; Design of intelligent building systems; Construction project design; Construction project construction; Import and export of goods; Technology import and export. (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: Ac Current Transformer, Actb Current Overvoltage And Undervoltage Protector, Asj Intelligent Power Relay

Top 2
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Shanghai Jingmin Electric Co., Ltd
Overall Score4.7 / 5
Est. Date2013-03-27
Registered Capital2000K CNY

Shanghai Jingmin Electric Co., Ltd. is registered at No. 98, Lane 5669, Yexin Road, Xinbang Town, Songjiang District, Shanghai. The registration authority is the Songjiang District Market Supervision Administration, and the legal representative is Pan Mingyi. Its business scope includes the processing, sales, and installation of electrical equipment and accessories, power equipment (excluding installation, maintenance, and testing of power facilities), industrial automation equipment, electromechanical equipment, electronic products, electrical equipment, instruments and meters, rubber and plastic products, and hardware and electrical wholesale and retail. Projects that require approval by law must be approved by relevant departments before conducting business activities. Core products: Ac Current Transformer, Zw20 Vacuum Circuit Breaker, Zw32 Vacuum Circuit Breaker

Top 3
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Shanghai Changkai Electric Appliance Co., Ltd
Overall Score4.7 / 5
Est. Date2014-06-16
Registered Capital10000K CNY

Shanghai Changkai Electric Appliance Co., Ltd., with its registered address at Room 2871, Building 2, No. 1899 Guangtai Road, Fengxian District, Shanghai, is registered with the Market Supervision Administration of Fengxian District. The legal representative is Yang Panpan, and the business scope includes the sales of high and low voltage electrical products, industrial automation equipment, electromechanical equipment, electronic products, power tools, electronic components, instruments and meters, rubber and plastic products, hardware and electrical equipment, research and development, design, manufacturing, sales, installation and maintenance of low-voltage electrical appliances and accessories, mechanical equipment and accessories, molds, engaged in import and export business of goods and technology, technical services, technical consulting, technical development, and technology transfer in the field of electrical and electrical technology. Projects that require approval by law must be approved by relevant departments before conducting business activities. Core products: Ac Current Transformer, Grounding Switch, Zn85-40.5Kv

TOP4
Shanghai Qinuo Electromechanical Technology Co., Ltd
Overall Score4.6 / 5
Est. Date2014-11-14
Registered Capital2000K CNY

Shanghai Qinuo Electromechanical Technology Co., Ltd., with its registered address at 5th Floor, No. 505 Xincun Road, Putuo District, Shanghai, registered with the Putuo District Market Supervision Administration, and represented by Du Peijie as its legal representative. Its business scope includes general projects such as sales of electronic components and electromechanical equipment; Sales of mechanical equipment; Retail of computer software, hardware, and auxiliary equipment; Sales of industrial control computers and systems; Information technology consulting services; Technical services, technology development, technology consulting, technology exchange, technology transfer, and technology promotion; Sales of electrical equipment; Operation of wires and cables; Sales of building decoration materials; Retail of hardware products; Sales of instruments and meters; Electronic product sales; Sales of metal materials; Sales of chemical products (excluding licensed chemical products); Sales of valves and plugs; Sales of specialized equipment for environmental protection; Furniture sales; Sales of household items; Sales of plastic products; Sales of daily necessities; Retail of shoes and hats; Clothing and apparel retail. (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: Ac Current Transformer, Votech, Rotoflux

TOP5
Shanghai Aiyou Automation Technology Co., Ltd
Overall Score4.6 / 5
Est. Date2008-11-12
Registered Capital5000K CNY

Shanghai Aiyou Automation Technology Co., Ltd., with its registered address at Room 201D, Building 6, No. 438 Xinnongpuyin Road, Zhujing Town, Jinshan District, Shanghai, is registered with the Jinshan District Market Supervision Bureau. The legal representative is Ou Fei, and its business scope includes technology development, technical consulting, and technical services in the field of automation system equipment, mechanical and electrical equipment, lifting equipment, electrical complete sets of equipment, instruments and meters, electronic products, hardware and electrical equipment, hydraulic and pneumatic equipment, pipeline fittings, valves, mechanical accessories, computers, software, and auxiliary equipment (except for computer information system security specialized products), and sales of office and cultural supplies. Projects that require approval by law must be approved by relevant departments before conducting business activities. Core products: Ac Current Transformer, Xinjie Xinje, Siemens Apt Buzzer

TOP6
Shenmo (Shanghai) Automation Equipment Co., Ltd
Overall Score4.5 / 5
Est. Date2016-03-30
Registered Capital5000K CNY

Shenmo (Shanghai) Automation Equipment Co., Ltd., with its registered address at Building 8, No. 8188 Daye Road, Fengxian District, Shanghai, registered with the Market Supervision Administration of Fengxian District, and represented by Liu Xueyan as its legal representative. Its business scope includes the processing (limited to branch operations) and sales of automation control equipment; Retail and wholesale of instruments and meters, hardware and electrical equipment, electrical appliances, office equipment, steel, building materials, computer software and hardware and accessories, electronic products, communication equipment, and electrical products; Engaged in import and export business of goods and technology. Projects that require approval by law must be approved by relevant departments before conducting business activities. Core products: Ac Current Transformer, Adjusting Nut, Sensor System

TOP7
Shanghai Sapo Electromechanical Control System Co., Ltd
Overall Score4.5 / 5
Est. Date2015-01-05
Registered Capital2000K CNY

Shanghai Sapo Electromechanical Control System Co., Ltd., with its registered address at Room 2212, Building 5, No. 6558 Tingwei Road, Jinshan Industrial Zone, Shanghai, is registered with the Jinshan District Market Supervision and Administration Bureau. The legal representative is Peng Bing, and its business scope includes licensed projects such as import and export of goods; Technology import and export. (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: sales of industrial automatic control system devices; Sales of power electronic components; Sales of electrical and mechanical equipment; Sales of instruments and meters; Wholesale of hardware products; Sales of metal products; Sales of hydraulic power machinery and components; Sales of machine tool functional components and accessories; Wholesale of computer software, hardware, and auxiliary equipment; Sales of communication equipment; Sales of metal tools; Wholesale of automotive spare parts; Sales of building materials; Sales of chemical products (excluding licensed chemical products); Sales of daily necessities; Sales of needle textiles and raw materials; Technical services, technology development, technology consulting, technology exchange, technology transfer, and technology promotion; Information consulting services (excluding licensed information consulting services). (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: Ac Current Transformer, Sensor, Tensioner

TOP8
Shanghai Jidu Electric Technology Co., Ltd
Overall Score4.5 / 5
Est. Date2020-10-13
Registered Capital1000K CNY

Shanghai Jidu Electric Technology Co., Ltd., with its registered address at Building 4, No. 9135 Zhufeng Road, Fengjing Town, Jinshan District, Shanghai (Shangcheng Community), is registered with the Jinshan District Market Supervision and Administration Bureau and represented by Chen Chunrui. Its business scope includes general projects such as technical services, technology development, technology consulting, technology exchange, technology transfer, and technology promotion; Sales of electrical and mechanical equipment; Sales of electrical equipment; Retail of daily household appliances; Sales of distribution switch control equipment; Sales of electrical instruments and meters; Sales of capacitors and their supporting equipment; Sales of generators and generator sets; Operation of wires and cables; Wholesale of electronic components; Retail of electronic components; Sales of power electronic components; Sales of pneumatic power machinery and components; Sales of instruments and meters; Internet sales (except for the sale of goods that need to be licensed); Domestic trade 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: Ac Current Transformer, Ammeter, Mutual Inductor

TOP9
Beiying Electronic Technology (Shanghai) Co., Ltd
Overall Score4.4 / 5
Est. Date2014-01-27
Registered Capital1000K CNY

Beiying Electronic Technology (Shanghai) Co., Ltd., with its registered address at Room AF110, Building 22, No. 1-30, Lane 88, Minbei Road, Minhang District, Shanghai, is registered with the Minhang District Market Supervision and Administration Bureau. The legal representative is Li Jinlin, and the business scope includes technical consulting, technical services, technical development, technology transfer in the field of electronic technology, sales of mechanical equipment and accessories, metal materials and products, hardware and electrical equipment, electronic equipment, communication equipment, fire-fighting equipment, household appliances, power equipment, audio equipment, office supplies and equipment, labor protection supplies, building decoration materials, computers, software and auxiliary equipment, installation and maintenance of mechanical equipment, leasing of instruments and equipment, and import and export of goods and technology. Projects that require approval by law must be approved by relevant departments before conducting business activities. Core products: Ac Current Transformer, Epps Apc, Gel Time Tester

TOP10
Shanghai Yukai Electric Power Technology Co., Ltd
Overall Score4.4 / 5
Est. Date2014-05-28
Registered Capital31080K CNY

Shanghai Yukai Electric Power Technology Co., Ltd., with its registered address at Room 3397, Building 4, No. 1628 Lizheng Road, Shuyuan Town, Pudong New Area, is registered with the Pudong New Area Market Supervision Bureau. The legal representative is Zhang Daguan, and its business scope includes the research and development, manufacturing, processing, and sales of power switches, distribution switch control equipment, high and low voltage electrical appliances and complete sets of equipment, electrical equipment, hardware and electrical equipment, wires and cables, lamps, and instruments. It is engaged in the import and export of goods and technology. Projects that require approval by law must be approved by relevant departments before conducting business activities. Core products: Ac Current Transformer, Ring Main Unit, Outdoor High-Voltage Vacuum Circuit Breaker

Detailed Manufacturer Comparison

ManufacturerEst. DateMain ProductsRegistered CapitalCustomization
Ankerui Electric Co., Ltd2003-06-23Ac Current Transformer, Actb Current Overvoltage And Undervoltage Protector, Asj Intelligent Power Relay250784.65499999997K CNYNot Supported
Shanghai Jingmin Electric Co., Ltd2013-03-27Ac Current Transformer, Zw20 Vacuum Circuit Breaker, Zw32 Vacuum Circuit Breaker2000K CNYNot Supported
Shanghai Changkai Electric Appliance Co., Ltd2014-06-16Ac Current Transformer, Grounding Switch, Zn85-40.5Kv10000K CNYNot Supported
Shanghai Qinuo Electromechanical Technology Co., Ltd2014-11-14Ac Current Transformer, Votech, Rotoflux2000K CNYNot Supported
Shanghai Aiyou Automation Technology Co., Ltd2008-11-12Ac Current Transformer, Xinjie Xinje, Siemens Apt Buzzer5000K CNYNot Supported
Shenmo (Shanghai) Automation Equipment Co., Ltd2016-03-30Ac Current Transformer, Adjusting Nut, Sensor System5000K CNYNot Supported
Shanghai Sapo Electromechanical Control System Co., Ltd2015-01-05Ac Current Transformer, Sensor, Tensioner2000K CNYNot Supported
Shanghai Jidu Electric Technology Co., Ltd2020-10-13Ac Current Transformer, Ammeter, Mutual Inductor1000K CNYNot Supported
Beiying Electronic Technology (Shanghai) Co., Ltd2014-01-27Ac Current Transformer, Epps Apc, Gel Time Tester1000K CNYNot Supported
Shanghai Yukai Electric Power Technology Co., Ltd2014-05-28Ac Current Transformer, Ring Main Unit, Outdoor High-Voltage Vacuum Circuit Breaker31080K CNYNot Supported

Purchasing Guide

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

  • For procurement requirements that require the use of AC current transformers, it is recommended to prioritize confirming key technical parameters such as rated current ratio, accuracy level, and frequency range to ensure compatibility with power monitoring or energy metering systems.
  • In industrial automation or new energy generation scenarios, suitable protection levels (such as IP54 or higher) and structural types (open or closed) of AC current transformers should be selected according to the installation environment.
  • 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 to balance technical adaptability and supply chain stability.
  • For different application scenarios (such as distribution cabinet integration or high-voltage line monitoring), it is recommended to select based on the type of secondary output signal (such as 4-20mA or 0-5V) and the interface requirements of the backend equipment.

Knowledge Base

Q

Current transformer is one of the indispensable and important components in the power system. If it is selected too small, it will have a negative impact on the entire system. This article will introduce the consequences and countermeasures of selecting a smaller current transformer.

Q

This article systematically introduces three practical methods for open circuit demagnetization of AC current transformers, including DC demagnetization method, AC demagnetization method, and natural demagnetization method. Detailed analysis of the operation steps and precautions is provided to help technicians safely and efficiently complete demagnetization operations.

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