Best Power Transformer Suppliers
Discover verified global sourcing options for high-efficiency power transformers, including custom specifications, energy ratings, and specialized designs for various industries.
Power TransformersEnergy SolutionsElectronicsCustom DesignsHigh Voltage
Beijing Daelim Green EP Tech Co., Ltd.
🇨🇳 China
2010101-200 peopleManufacturer/Trading CompanyOEM manufacturer
ODM manufacturer
Own brand
Product customization
Shipments
600
Key customer
SONG HONG VIET
Key market
🇺🇸 United States
Review
4.9
33kv-3.3kv-power-transformer 7.5mva-33kv-power-transformer Price$18800
Power Transformer Manufacturers 30 40 50 100 Mva Power Transformer$123450
20 Mva 10mva 5mva Power Transformer Price 15 Mva 30mva Power Transformer Price 40 Mva 25mva Power Transformer Price$69800
Direct Factory 20kv 22kv Step up Transformer 4000 Kva Power Transformer Distribution Power Transformer$8500
Power Transformer 330kv Oil Type 220kV 132kV 110kV High Voltage Power transformers$69900
1000kva Distribution Transformer Outdoor Power Transformer 3phase$54231
Transformer Substation 10 Mva Power Transformer Price$16000
Daelim Transformer 4200kVA Power Transformers 69kv 4.16kV/2.4kV Transformer$9688
20 Mva 10 Mva 5 Mva Power Transformer Price,15 Mva 30 Mva Power Transformer Price,40 Mva 25 Mva Power Transformer Price$88500
9000kva-power-transformer 7.5mva-33kv 2.5mva-10 Mva Three-phase Power - 1000 Kva 10-mva-power Transformer$18999
Daelim Transformer Power Transformer 5000 KVA Factory 33/0.4kV 6 MVA 7000 KVA 10 MVA Power Transformer Price$52889
Single Phase Transformer 167kVA Power transformers 13.8kV 13.2kV$1850
Anhui Green Energy Electric Co., Ltd.
🇨🇳 China
2019101-200 peopleManufacturer/Trading Company/WholesalerOEM manufacturer
ODM manufacturer
Product customization
Low MOQ
Shipments
55
Key customer
GROWATT PK
Key market
🇺🇸 United States
Review
4.9
Oil Immersed Power Transformer Electrical 138/230kv Power Transformer$95999
Three Phase Power Transformer Oil-Immersed Transformer$1000
35kv Oil Immersed Power Transformers, Distribution Transformer, Transformer Manufacturer, Electrical Transformer$5553
40mva 66kv 110kv Power Transformer High Voltage Transformer$95999
Scb11 50kVA Dry Transformer Power Transformer 380 220$1000
37.5kVA Single Phase Pole Mounted Transformer Power Transformer$1100
11kv 15kv 20kv 33kv Power Distribution Transformer Customized Oil Immersed Power Transformer$3000
50 Mva Substation Power Transformer 63kv 110 Kv Transformer$5416021.72
High Voltage Electric Distribution Transformer Oil Immersed 750kVA Transformers Power Transformer$1000
20mva 110kv 220kv Large Power Transformer$95999
750kVA Customized Oil Immersed Power Transformer$1000
2500kVA 35kv Oil Immersed Power Transformer$19800
Anhui Kebang Electric Technology Co., Ltd.
🇨🇳 China
201911-50 peopleManufacturer/Trading Company/WholesalerOEM manufacturer
ODM manufacturer
Product customization
Low MOQ
Shipments
166
Key customer
TRIMITRA USAHA SUMBER DAYA
Key market
🇪🇨 Ecuador
Review
4
Three Phaseoil Immersed Power Transformer 33kv High Voltage Power Transformer$900
Scb11 50kVA Dry Transformer Power Transformer Power Supply Transformer$2000
Power Transformers Manufacture Dry Type Power Transformer 100kva 300kva 500kva 630kva 1000kva Power Distribution Transformer$1999
Power Transformer High Voltage Transformer S11 13-10kv 11kv Oil Immersed Power Transformer$277296.54
Scb11-800kVA~2500kVA Dry-Type Power Transformer Distribution Power Transformer Promotion Price$1899
Dry Transformers Toroidal Transformer Current High Power Transformer$1500
Power Transformers 100mva Oil Immersed Transformer Distribution Transformer$800
Oil Filled Power Transformer 33kv 11kv 0.4kv 250kva 315kva 3 Phase Power Transformer$54738.1
Oil Three Phase Transformer 500kVA Power Transformer$900
Power Transformer, 11kv 630kVA Oil Immersed Transformer, Distribution Transformers$800
Three Phase Oil Immersed Power Transformer 10kv 11kv to 400V High Voltage Power Transformer$2000
Power Transformer 33kv 35kv Distribution Transformer 380V 440V$2960
Ningbo Zhongce E.T Electronics Co., Ltd.
🇨🇳 China
2003201-300 peopleManufacturer/Trading CompanyEstablished brand
OEM manufacturer
ODM manufacturer
Industry association member
Shipments
1475
Key customer
LENNOX
Key market
🇺🇸 United States
Description
Ningbo Zhongce E.T Electronics Co., Ltd. is a prominent manufacturer and trading company headquartered in Ningbo, China. With a legacy dating back to 1956 and formally established as a joint venture in 2003, the company has grown into a high-tech enterprise and a Vice President unit of the China Electronic Transformer Association. Operating from a 30,000-square-meter facility with a workforce of 200 to 500 employees, the company specializes in the R&D and production of a wide range of electronic components, including toroidal, high-frequency, and power transformers, as well as choke coils, inductors, and AC/DC adapters. Their manufacturing capabilities extend to PCB assembly (PCBA), brushless DC motors, and specialized sensors for new energy and automotive applications.
As a group enterprise with multiple specialized subsidiaries, Ningbo Zhongce E.T Electronics offers comprehensive OEM and ODM services, supported by advanced production equipment sourced from Germany and Taiwan. The company maintains a robust quality assurance system with certifications including ISO 9001, ISO 14001, UL, CE, CQC, CSA, and GS. Their production capacity is significant, reaching up to 10 million pieces annually or a daily output of 40,000 to 100,000 units depending on product complexity.
With over 50 years of industry expertise, the company is a major international exporter, serving a diverse global clientele that includes well-known brands such as Honeywell, Eaton, and Lennox. Their products are utilized across various sectors, including medical treatment, industrial automation, household appliances, and military-grade electronics. The company utilizes ERP and 6S management systems to ensure efficient operations and rapid sample lead times of three to seven days.
Power Transformer$5
800va Power Transformer$60
24V Power Transformer$10
Toroidal Power Transformer$10
Three Phase Power Transformer$50
5000va Three Phase Power Transformer$100
High Frequency Switching Transformers with 3,750V RMS Dielectric Strength and 2 to 2,000W Power$0.01
Potting Transformer$4
Landscape Lighting Transformer$86
57 Years - Electronic Transformer
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Compare suppliers based on factors such as product quality, pricing, certifications, production capacity, lead times, export experience, and communication responsiveness. Evaluating suppliers against the same criteria makes decision-making more objective.
Yangzhou Huading Electric Co., Ltd.
🇨🇳 China
2000301-500 peopleManufacturer/Trading Company/WholesalerEstablished brand
High-tech enterprise
ODM manufacturer
Product customization
Key customer
SOUTHERN POWER GRID
Description
Yangzhou Huading Electric Co., Ltd. is a national high-tech manufacturer and trading company established in 2000, specializing in power distribution and generation equipment. Based in Yangzhou, China, the company operates a 65,000 square meter facility with over 300 employees and a registered capital of 200.66 million yuan. They are a qualified supplier for major utility providers like State Grid and Southern Power Grid, serving diverse sectors including railways, oil fields, metallurgy, and renewable energy projects.
The company's extensive product portfolio includes power transformers (oil-immersed, dry-type, and amorphous alloy), high and low-voltage switchgear, and various box-type substations (European, American, and photovoltaic styles). They also manufacture specialized electrical components such as circuit breakers, load isolation switches, and reactive power compensation devices. With a focus on innovation, the company maintains provincial-level engineering technology research centers and holds numerous patents for intelligent distribution and energy storage solutions.
Yangzhou Huading Electric offers comprehensive OEM, ODM, and contract manufacturing services, supported by a robust quality control system featuring 18 QA/QC inspectors. Their commitment to international standards is evidenced by a wide range of certifications, including ISO 9001, ISO 14001, ISO 45001, ISO 50001, and ISO 10012, alongside CE and CQC product certifications. The company is recognized as a "trustworthy and contract-heavy" enterprise, delivering professional solutions for urban and rural power grid construction globally.
Oil Immersed Power Transformer$3188.06
Oil-immersed Power Transformer$74084.64
Aluminum Power Transformer 50/60Hz Three-Phase Instrument Transformer Oil-Immersed$3250528
Three-Phase Oil-Immersed Power Three-Phase Oil-Immersed Power Transformer$800
Immersed Power Transformer Transformer Manufacturer Good Quality Assurance 35kv 10kv 6000 Kva 1000kva$3216835.92
Custom 220v Cast Resin Dry-Type Power Transformers Three Phase Dry-Type Transformer$7600
Customized Lightweight Antiseptic Enclosure for Dry Type Power Transformer$7785
10kv 10.5kv 11kv Oil-Immersed Transformer Low Noise Three Phase Power Transformer 315KVA Distribution Transformer 380V 50Hz$21711.89
Aluminum 10KV Oil-immersed Power Transformer Three Phase 50Hz and 60Hz Frequency Instrument Transformer$8895.93
Factory Custom Single-phase Pole Mounted Power Transformer for Electronic$208231
Dyn11 3-Phase Indoor Dry Type Power Transformer SCB11 Transformer From China 11KV to 415V Step Down Transformer$2511982
American Type Instrument Transformer for Substation Power Transformer with 30kVA to 500kVA Rated Capacity 400V Output Voltage$162738.3
Jiangsu Daelim Electric Co., Ltd.
🇨🇳 China
2007101-200 peopleManufacturer/Trading Company/Distributor/Service CompanyOEM manufacturer
ODM manufacturer
Product customization
Patented technology
Shipments
115
Key customer
DAELIM TRANSFORMER
Key market
🇺🇸 United States
Review
5
High Voltage Main Power Transformer 5000kVA 10 Mva 63000 KVA Power Transformer Price$8600
Ryan Transformer 15 Mva Oil Immersed Power Transformer$125566
Manufacturer Supply Electrical transformers 11kV 800kVA Power Transformer$9400
Professional Electric Transformer Manufacturers High Voltage 2500KVA Oil Immersed Transformer 33KV Power Transformer$15480
High Quality 180 KVA 200kVA Power Transformer Price$3200
Power Transformers Factory Supply Electric 1000KVA 1250KVA Transformer 20KV 0.4KV Oil Immersed Transformer China Supplier$9600
OEM Manufacturer Jiangsu Ryan Three Phase Dry-type Transformer Cast Resin Power Transformer 10kv Industrial Transformer$21200
1500kVA Three Phase Dry Type Power Transformer Step Down Transformer 11kV to 415 V$800
315kva 11/0.4kv Oil Type Transformer Copper Winding IEC Standard Power Transformer ONAN Three Phase Transformer Hot Sales$147723.45
Three Phase Two Winding 34.5kv 2mva 5mva Power Transformer Price 1250kva Oil-immersed Industrial Transformer$12540
Factory Direct Price 110 Kv 20mva Three Phase Oil Immersed Power Transformer 25000 Kva Transformer$88000
High Voltage SCB11 Dry Transformer 500kva Power Transformer 380/220V Capacity Epoxy Resin Cast Dry-Type MV&HV Transformers$8300
Guizhou Delong Electric Co., Ltd
🇨🇳 China
2019101-200 peopleManufacturer/Trading Company/Service CompanyOEM manufacturer
High-tech enterprise
Patented technology
Product customization
Key customer
ANHUI PROVINCIAL ELECTRIC POWER COMPANY
Key market
Asia
Description
Guizhou Delong Electric Co., Ltd. is a prominent high-tech enterprise and the largest manufacturer of power transformers in the Guizhou region of China. Established in 2019 and operating from a 100-acre facility in the Longli High-Tech Industrial Park, the company specializes in the research, development, production, and sale of power equipment rated up to 110kV. Its extensive product portfolio includes oil-immersed transformers (S11, S13, S20, S22 series), epoxy cast and non-encapsulated dry-type transformers, amorphous alloy transformers, and specialized units for photovoltaic and wind power applications. Additionally, the company manufactures prefabricated substations, high/low voltage distribution cabinets, and energy storage converter-booster units.
With a workforce of over 100 employees, including a specialized R&D team of 19 senior engineers and 36 technical experts, Delong Electric holds 15 utility patents and 2 software copyrights. The company is recognized as a "China Famous Brand" and a "Top Ten Transformer Brand in China." It operates under a rigorous quality management framework, holding ISO 9001:2015, ISO 14001:2015, OHSAS 18001:2007, and CE certifications. Their products are engineered for energy efficiency, with amorphous core units achieving up to 80% lower no-load loss compared to traditional models.
Delong Electric is a trusted supplier to China's State Grid and Southern Grid across multiple provinces and actively participates in the Belt and Road Initiative. The company offers comprehensive OEM, ODM, and OBM services, exporting to over 20 countries across Central Asia, Southeast Asia, and Africa. Committed to sustainability and the "Dual Carbon" goals, they provide 24/7 technical support and a lifetime after-sales service mechanism to ensure reliable power infrastructure for global utility and industrial partners.
Professional Custom Oil-Immersed Power Transformer (300kVA-31500kVA) High Voltage Power Transformer$2895
2000kVA-20000kVA Oil-Immersed Power Transformer Oil-Immersed Power Transformer | Customized OEM Solutions From China$2885
20kV 35kV/11 Oil-Immersed Power Transformer From China Manufacture OEM 2000kVA-31500kVA Power Transformer Factory$7899
High-Performance 10kV Epoxy Resin Dry Transformer Industrial Power Transformer$1889
10kV 35kV High Overload Transformer (50kVA-2500kVA) Reliable Industrial Power Transformer$969
10kV 35kV High Overload Transformer (50kVA-2500kVA) Reliable Industrial Power Transformer$969
Customized Power Transformer 30kVA to 2500kVA Factory Direct Sales Three Phase Distribution Transformer$6373.62
20kv/400v Three Phase Dry Type Power Transformer 630KVA Step Down MV&HV Transformer$112655.94
Reliable Industrial High Overload Transformer (50kVA-2500kVA) Oil-Immersed Power Transformer Professional Chinese Supplier$969
Power Transformer Mv&Hv Box Type Dry Transformer - Reliable & Durable (30kVA to 2500kVA) Epoxy Resin Dry Type Transformer$1891
35kV/11kV Oil-Immersed Power Transformer Capacity From 2000kVA to 6300kVA$2880
35kV/10kV Oil-Immersed Power Transformer Capacity From 20000kVA to 31500kVA$8880
Zhejiang Longxiang Electric Co., Ltd.
🇨🇳 China
2003301-500 peopleManufacturer/Service CompanyEstablished brand
High-tech enterprise
Low MOQ
OEM manufacturer
Key customer
CHILEAN MINING GROUP
Key market
Asia
Description
Zhejiang Longxiang Electric Co., Ltd. is a professional manufacturer and high-tech enterprise specializing in the research, development, and production of power equipment. Established in 2003 and headquartered in Jiangshan, Zhejiang, the company operates a 54,000-square-meter factory equipped with advanced manufacturing and testing facilities. With a workforce of approximately 300 to 500 employees, including a specialized R&D team, the company has built a strong reputation as a reliable OEM provider for the global power sector and heavy industries such as steel and mining.
Three-Phase Power Transformer$5000
Dry Type Distribution Transformer$3000
Single-Phase American Transformer$5000
Oil Immersed Station Transformer$7000
European Box-Type Transformer Substation-European Style Substation$5000
Helms-Man Transformers Co., Ltd.
🇨🇳 China
19751001-2000 peopleManufacturer/Trading CompanyHigh capacity factory
Established brand
Large enterprise group
OEM manufacturer
Shipments
160
Key customer
INVUE
Key market
🇺🇸 United States
Description
Helms-Man Transformers Co., Ltd. is a prominent manufacturer and exporter of power solutions, established in 1975 and headquartered in Huizhou, China. With over 45 years of industry experience, the company operates a 30,000-square-meter production facility and employs a workforce of approximately 1,500 to 2,000 professionals. Helms-Man specializes in the design and production of a vast portfolio exceeding 5,000 models, including switching mode power supplies, AC/DC adapters, power transformers, battery chargers, LED drivers, and DC/DC converters. They also provide specialized equipment such as GaN power supplies, portable power stations, and inverters.
As a comprehensive OEM and ODM service provider, the company supports global clients through every stage of development, from product concept and engineering analysis to mold design and prototyping. Their manufacturing capabilities are highly automated, featuring SMT, AI auto-assembly, and advanced testing machinery (AOI, ATE, XRF). The facility maintains a high production capacity of over 100,000 units daily, or up to 3 million units monthly, ensuring rapid lead times and scalable solutions for major international brands such as IKEA, Philips, 3M, and Alcatel.
Helms-Man is committed to rigorous quality standards, holding ISO 9001, ISO 14001, and ISO 13485 (medical devices) certifications. Their products carry extensive global safety attestations, including UL, GS, CE, UKCA, CCC, PSE, and BIS, facilitating distribution across major markets in Europe, North America, and Asia. By utilizing advanced MRP and Customer Satisfaction Maximizer (CSM) systems, the company ensures consistent quality control through FMEA and SPC methodologies while providing full logistical support to its global partners.
Door Chime Transformers/Lead Wire Type Power Transformers/PCB Mounted Pin Type Power Transformers
Pin Type/Wire Type Transformers with Quality Approval
Wall-mounted HXA60W-Series Electronic Halogen Lighting Transformers with Fixed AC Plugs (up to 60W)
Car Plug DC-DC Adaptors with 12V DC Input and 1,000mA Output Current
USB Car Charger
AC Adaper
Zhejiang Usune Electric Co., Ltd.
🇨🇳 China
2011101-200 peopleManufacturer/Trading CompanyHigh-tech enterprise
Product customization
Eco-friendly supplier
OEM manufacturer
Shipments
52
Key customer
OSPREY INDUSTRIAL SOLUTIONS
Key market
🇺🇦 Ukraine
Description
Zhejiang Usune Electric Co., Ltd., established in 2011 and headquartered in Yueqing, China, is a high-tech manufacturer and trading company specializing in power transmission and distribution equipment up to 36KV. Operating from a 4,300 square meter production facility with a dedicated workforce of 150 employees, the company integrates R&D, manufacturing, and sales to provide comprehensive electrical solutions. Their core product portfolio includes prefabricated substations, low and medium voltage switchgear, gas and air-insulated ring main units (RMU), and power transformers in both oil-immersed and cast resin varieties. Additionally, they produce a wide range of switchgear accessories such as vacuum circuit breakers, SF6 load break switches, earthing switches, and instrument transformers (CT/PT). As a contract manufacturer and OEM provider, Usune Electric maintains a sound management system certified under ISO 9001, ISO 14001, and ISO 45001 standards. The company is a trusted supplier to major entities including the State Grid Corporation of China (SGCC) and China Railway Construction Corporation, while also maintaining international trade operations across various global markets.
10 Mva Power Transformer 110 Kv 40 Mva Power Transformer$9999
Onan Power Transformer Power Distribution Transformer 33kv 11kv Transformer Manufacturer$666
Power Plant 1MW Transformer Industrial Power Transformer 315 kVA Transformer$379
11kv Power Transformers Electric Transformers High Voltage Transformers$150
25 Mva Transformer 20 Mva Power Transformer Price 5 Mva 75mva Power Transformer for Outdoor Use$65890
Power Transformer Electricity Transformer 500kVA 1000kVA 2000kVA$1001
630 kVA 1000 kVA Transformer Power Transformer Dry Transformer$1061
Step up Transformer 2500kVA Power Transformer 400kVA 500kVA$2222
10kv 11kv Power Transformer 1000kVA Oil Transformer Mva$2644
33kv Transformer kVA Power Transformer 11kv 10kv 20kv$2888
Electric Power Transformer High Voltage Transformer Price 1MW Transformer 2000kVA$1080
Oil Type Transformer 50/60Hz Power Transformer 10kv 20kv 33kv Transformer$607
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