Best Power Transformer Suppliers

Beijing Daelim Green EP Tech Co., Ltd.

🇨🇳 China

2010

101-200 people

Manufacturer/Trading Company

OEM manufacturer

ODM manufacturer

Own brand

Product customization

Shipments

580

Key customer

SONG HONG VIET

Key market

North America

Review

4.9

Best Sales 20MVA-60MVA 69KV Power Transformer for Utility Applications$26666

Hot Sale UL CUL Approval Electrical 3-Phase Oil Immersed Power Transformers for Utility$541000

19kv Single 1 Phase 10kva 50kva 100kva 30kv Pole Mounted and Power Distribution Transformer for Sale$890

Pad Daelim Copper Mounted Transform 1mva 1800kva 1500kva 1200kva 1100kva 1000kva Three Phase Power Transformer 2 Years$13800

Daelim Three Phases Copper Mounted Power Transformer 480V 440V 380V 15kV 400V Model ZGS Toroidal Coil 10kVA 150kVA$9900

For UL Certified Three-Phase Pad Mounted Power Transformer 13.8Kv 35.4Kv 440V 480V 1200Kva 1500Kva Input Voltage 10Kv$11000

China Factory High Quality 220kv 230kv 100mva Transformer 50 Mva 15 Mva Power transformers 20mva 100mva Transformer Price$98000

80 MVA Three-Phase Power Distribution Transformer High Voltage/High Frequency 20KV 10KV 35KV 110KV HV HF Transformer Competitive$550000

IEC Standard Electric Power Transformer 20-25-40-50-80-200 MVA 75MVA-138kv-132kv-115kv-66kv 13.8kv-11kv 220kv Input Three$158690

High Voltage 25 MVA Power Transformer 25000kVA 161/25kv 110/35/13.8kv 6 Kv 4160v 50Hz Frequency Two Winding for 115kv 220kv V$100000

500kva Box Type Oil Immersed Transformer for Residential Areas Three Phase$4999

Ningbo Zhongce E.T Electronics Co., Ltd.

🇨🇳 China

2003

201-300 people

Manufacturer/Trading Company

Established brand

OEM manufacturer

ODM manufacturer

Industry association member

Shipments

1224

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.

High Frequency Switching Transformers with 3,750V RMS Dielectric Strength and 2 to 2,000W Power$0.01

57 Years - Electronic Transformer

Anhui Green Energy Electric Co., Ltd.

🇨🇳 China

2019

101-200 people

Manufacturer/Trading Company/Wholesaler

OEM manufacturer

ODM manufacturer

Product customization

Low MOQ

Shipments

Key customer

GROWATT PK

Key market

🇵🇭 Philippines

Review

4.9

11kv 15kv 20kv 33kv Power Distribution Transformer Customized Oil Immersed Power Transformer$3000

10/0.4kv 630kVA 800kVA 1000kVA IEC Standard Power Distribution Transformer Oil Immersed Power Transformer$1999

10kv 20kv 1000kVA 2000kVA High Voltage Power Customized Three Phase Oil Immersed Power Transformer$2359

750kVA Customized Oil Immersed Power Transformer$1000

Three Phase Power Transformer Oil-Immersed Transformer$1000

220V 630kVA Electrical Power Oil Immersed Transformer$1000

Power Substation Distribution Transformer Pad Mounted Transformers$9800

3 Phase Oil Immersed Power Distribution Transformer$3000

Scb11 50kVA Dry Transformer Power Transformer 380 220$1000

High Voltage Dry Type Power Transformer 30-2500kVA$1000

33kv 34.5kv 35kv 3 Phase Power Transformer Manufacturer$8900

11kv High Stability Distribution Customized Oil Immersed Power Transformer$1999

Yangzhou Huading Electric Co., Ltd.

🇨🇳 China

2000

301-500 people

Manufacturer/Trading Company/Wholesaler

Established 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.

35/0.4 Dry Type Power Transformer 100kVA Rated Capacity with 400V Output Voltage 35kV Input for Power Usage$7785

30-2500kVA Scb11 Electric Power Industrial 3 Phase Amorphous Alloy Dry Transformer$1000

High-Stability Outdoor Prefabricated MV&HV Transformers Power Substation for Stable Performance$2000

Custom 220v Cast Resin Dry-Type Power Transformers Three Phase Dry-Type Transformer$7600

Power Distribution Transformer Oil Immersed 3-Phase Step-up Step-down 1000V Input Voltage 50KVA 100KVA Rated Capacity$800

Dry-Type High Insulation Power Distribution Transformer 200KVA 400KVA Step Down for Transformers 3 Phase 600KVA Rated Capacity$7785

High Performance Yyn0 Dyn11 30kVA to 500kVA Aluminum 415V Output Voltage 50/60Hz Frequency Three Phase Power Transformer$1000

Coil-Shaped Power Transformer Oil-Immerse Instrument Usage 36V Output Voltage 50Hz Frequency Three Phase 6KV Input Voltage 10KVA$800

Three-Phase 10kv Input 280v Output Oil-Immersed Aluminum Material Power Transformer 25/50kva 60Hz Frequency 35kv 6kv Copper$800

Outdoor 3-Phase Power Transformer 30KVA 2500KVA Aluminum Material 200V/380V/480V/440V Output 3KV/6KV/10KV/15KV Input 50Hz/60Hz$2494

2025 New Products Environmentally Friendly High Voltage American Box-Type Power Substation$1000

Efficient Low-Loss Advanced Core-type 3-phase High Voltage Oil-Immersed Transformer$1000

Jiangsu Daelim Electric Co., Ltd.

🇨🇳 China

2007

101-200 people

Manufacturer/Trading Company/Distributor/Service Company

OEM manufacturer

ODM manufacturer

Product customization

Patented technology

Shipments

Key customer

GLOBAL BRIDGE

Key market

North America

Description

Jiangsu Daelim Electric Co., Ltd. (also known as Jiangsu Ryan Electric Co., Ltd.) is a prominent high-tech manufacturer and distributor specializing in power transmission and transformation equipment. Established in 2007 and headquartered in Haian, China, the company operates three production bases covering 120,000 square meters. In 2023, the company entered a strategic joint venture with Eaton, which acquired a 49% stake to enhance global distribution and service capabilities. With an annual production capacity exceeding 20,000 MVA and a portfolio of 37 patents, the company is a leader in the development of advanced electrical solutions, including the world's first 110kV class three-phase epoxy resin cast insulation dry-type power transformer. Their comprehensive product range includes dry-type transformers (cast resin and VPI), oil-immersed distribution and power transformers up to 110kV, pad-mounted transformers, and high/low voltage switchgear. Jiangsu Daelim serves diverse sectors such as renewable energy, data centers, utilities, and industrial markets across North America, Asia Pacific, and Africa. The company maintains rigorous quality standards with ISO 9001, ISO 14001, and ISO 45001 certifications, and its products meet international standards including UL, CSA, IEEE, and IEC. They offer full OEM/ODM services and provide local support through service centers in Canada, the USA, Australia, and Ecuador.

Manufacturer Supply Electrical transformers 11kV 800kVA Power Transformer$9400

High Quality 180 KVA 200kVA Power Transformer Price$3200

Ryan Transformer 15 Mva Oil Immersed Power Transformer$125566

Three Phase Oil Immersed 4000 KVA 4 MVA 4.5MVA Power Transformer$61000

Ryan 110kV 40000 KVA Electric Transformer Equipment Three Phase Oil Immersed Power Distribution Transformer$50000

OEM Manufacturer Jiangsu Ryan Distribution Transformer Cast Resin 3 Phase 1000KVA Power Supply Dry Type Transformer$21200

OEM Manufacturer Jiangsu Ryan Distribution Transformer Cast Resin 3 Phase 1500KVA Power Supply Dry Type Transformer$21200

SCB11 Series High Voltage 400kva Three-phase Epoxy Resin Cast Dry-type Power Transformer HV Transformers$8420

Power Trafo Transformer 3 Phase Oil Immersed Transformer S11 11kv 33kv 200kva 300kva 500kva Step Down Transformer$5680

High Quality Copper Dry Type Transformer Coil Epoxy Resin Insulated Aluminum Coil for Power Transmission and Distribution$1500

300KVA 1500KVA 2500KVA Cast Resin Dry Type Transformer 11KV to 400V Three Dry-type Power Transformer Price$8420

Ryan Outdoor Power Distribution Transformer 50 Kva 150 Kva 7200v Oil Type Single Phase Pad Mounted Transformer$3820

Anhui Kebang Electric Technology Co., Ltd.

🇨🇳 China

2019

11-50 people

Manufacturer/Trading Company/Wholesaler

OEM manufacturer

ODM manufacturer

Product customization

Low MOQ

Shipments

160

Key customer

TRIMITRA USAHA SUMBER DAYA

Key market

Asia

Review

Scb11 50kVA Dry Transformer Power Transformer Power Supply Transformer$2000

High Voltage Power Transformer 20kv 250kVA Dry Type Power Applications$2100

Three Phaseoil Immersed Power Transformer 33kv High Voltage Power Transformer$900

Dry Type Power Transformer 600kVA 400kw High-Power Three-Phase$2000

Mva 33kv/11kv 132 Kv 20mva-Power-Distribution-Transformer Power Three Phase$3800

Scb11-800kVA~2500kVA Dry-Type Power Transformer Distribution Power Transformer Promotion Price$1899

Factory Directly Sale Dry Power Transformer 400V 1000kVA 3 Phase Power Supply$2000

Voltage Transformer 125kVA/11kv Electrical Power Distribution Epoxy Resin Cast Dry-Type Power$5700

Oil Immersed Distribution Transformers, Manufacturer of Power Supply, 10kv Oil-Immersed Power Transformer$800

Three Phase Isolation Transformer Power Supply Transmission Transformers Power 300kVA 380V to 220V$450

Customized 3 Phase High Quality 11kv 10 Kv 2500kVA 630kVA Oil Power Transformer with Oil Immersed Power Transformer$12980

800kVA~2500kVA Dry Type Power Transformers Customizable$2500

Guizhou Delong Electric Co., Ltd

🇨🇳 China

2019

101-200 people

Manufacturer/Trading Company/Service Company

OEM 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.

35kV/10kV Oil-Immersed Power Transformer Capacity From 20000kVA to 31500kVA$8880

Of Good Looking Design European Type OEM Customizable Transformer - Pre-Installed Substation (Industrial Power Solution)$9890

20000kVA - 31500kVA Large Capacity 33kV 35kV/6kV 10kV 0.4kV Oil-Immersed Power Transformer - China Manufacturer$9880

Power Solution Transformer Station Three-Phase High Voltage Pre-Installed Substation American Style Pre-Installed Substation$9890

Pure Copper 10kV/0.4 H-Class Dry-Type Power Transformer - Reliable & Durable (30kVA/50kVA/80kVA/100kVA/125kVA160kVA)$2890

30kVA to 2500kVA Epoxy Resin Dry Transformer Dry-Type Transformer 10kV 35kV With Outer Shell$1895

Space Saving Customizable Capacity Epoxy Resin Dry-Type Transformer 10kV 11kV/0.4kV With Outer Shell$3895

Capacity 30kVA-2500kVA High Voltage 10kV 11kV 33kV 35kV/0.4kV Epoxy Resin Dry Transformer Dry-Type Transformer With Outer Shell$5895

(5kVA-350kVA) | Customized Solutions Factory Direct Sales Pole Mounted Transformer Single Phase Oil-Immersed Transformer$488

High Volt 10kV Reliable & Durable Oil-immersed 3-Dimensional Coil Core Distribution Transformer 30kVA~1600kVA$2890

Capacity 30kVA~1600kVA High Volt 10kV Reliable & Durable Oil-immersed 3-Dimensional Coil Core Distribution Transformer$2890

Transformer Station Three-Phase High Voltage Pre-Installed Substation American Style Pre-Installed Substation$4890

Zhejiang Longxiang Electric Co., Ltd.

🇨🇳 China

2003

301-500 people

Manufacturer/Service Company

Established 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

European Box-Type Transformer Substation-European Style Substation$5000

Dry Type Distribution Transformer$3000

Single-Phase American Transformer$5000

Oil Immersed Station Transformer$7000

Tianchang Fuan Electronics Co., Ltd.

🇨🇳 China

1986

1001-2000 people

Manufacturer/Trading Company/Distributor

High capacity factory

Established brand

Large enterprise group

OEM manufacturer

Shipments

535

Key customer

ANEVOLVE

Key market

North America

Description

Tianchang Fuan Electronics Co., Ltd., widely known by its brand name PAIRUI, is a premier manufacturer and exporter of magnetic components and power supply solutions. Established in 1986 and headquartered in Tianchang City, Anhui Province, the company has grown into a global leader with over 37 years of industry experience. Operating across four manufacturing bases in Tianchang and Nantong, the company maintains a 52,000-square-meter production area and employs approximately 1,450 people. Its operations are organized into three specialized divisions: Transformer and Inductor, Power Supply, and Magnetic and Molding. The company's extensive product portfolio includes high-frequency, low-frequency, and encapsulated transformers, as well as SMD inductors, common mode chokes, and current sensors. Their power supply range features industrial AC-DC converters, DIN rail power supplies, and a comprehensive line of LED drivers. These products serve diverse sectors including automotive, new energy, industrial automation, medical equipment, and consumer electronics. PAIRUI supports its manufacturing with robust R&D capabilities, featuring a team of over 60 engineers who provide OEM and ODM services alongside a catalog of over 10,000 standard products. Quality and reliability are central to their operations, evidenced by a suite of international certifications including IATF 16949, ISO 9001, ISO 14001, and OHSAS 18001. Their products also meet global safety standards such as UL, CE, TUV, VDE, and SAA. With an annual output value exceeding US$100 million, Tianchang Fuan Electronics serves a prestigious global clientele, including industry leaders like Siemens, Osram, Omron, and Otis, across markets in North America, Europe, and Asia.

Customized Logo Support Super Quality SMD Inductor CE UL Certificates$1

China ODM Factory High Current Inductor Flat Wire High Current Inductor$1

Zhejiang Usune Electric Co., Ltd.

🇨🇳 China

2011

101-200 people

Manufacturer/Trading Company

High-tech enterprise

Product customization

Eco-friendly supplier

OEM manufacturer

Shipments

Key customer

OSPREY INDUSTRIAL SOLUTIONS

Key market

Asia

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.