Power transformers, vital components in power systems, are static electrical machines that facilitate the transformation of electric power from one circuit to another, leveraging the principles of electromagnetic and mutual induction.
Transformers main role in power systems
Among the four links of power generation, transmission, distribution and consumption, power transformers appear in the first three links.
First, in the power generation process, the power transformer transmits the electric energy generated by the power plant to the power grid, and increases the voltage output by the power plant to meet the rated high voltage of the power transmission grid. The transformer used here is a step-up transformer.
Second, it is used for voltage conversion between power grids of different voltage levels.
Third, at the end of the power transmission, the voltage is reduced through power transformers at all levels to meet the voltage requirements of the distribution network.
Who are the Top 10 transformer manufacturers in global?
Here are the top 10 transformer manufacturers in the world.
1. Siemens Energy
2. Fuji Electric Co., Ltd.
3. General Electric Company
4. Hitachi Energy
5. Hyosung Heavy Industries Co., Ltd.
6. Hyundai Electric & Energy Systems Co., Ltd.
7. JSHP Transformer Co., Ltd.
8. TBEA Co., Ltd.
9. Toshiba Energy Systems & Solutions Corporation
10. EFACEC Power Solutions SGPS, S.A. (Efacec)
1.Siemens ENergy
Established: 2020
Location: Munich, Germany
Siemens Energy AG, known as Siemens Energy, emerged as a prominent player in the energy sector following its separation from the Gas and Power division of the Siemens Group.
The company's grid technology portfolio a wide of solutions, including:
CAREPOLE dry-type cast resin transformers: These transformers are celebrated for their environmental friendliness, reliability, and safety, boasting exceptional electrical, mechanical, and thermal properties. Notably, CAREPOLE received the prestigious 2022 "EUISSCA Sustainable Supply Chain Award."
Fluid-immersed distribution transformers: Compact and dependable, these transformers utilize fully biodegradable ester-insulating oil, enhancing their performance at elevated temperatures.
GEAFOL cast resin transformers: Setting the standard for environmental responsibility, GEAFOL cast resin transformers surpass stringent safety regulations while maintaining excellent electrical, mechanical, and thermal attributes.
HVDC transformers: Facilitating efficient power exchange between interconnected systems and asynchronous grids, HVDC transformers enable bulk, reliable power supply from generation units to load centers, minimizing transmission losses.
Phase-shifting transformers: Recognized for their cost-effectiveness, phase-shifting transformers play a vital role in actively controlling power flow, thereby enhancing the flexibility and stability of transmission grids.
Power transformers: Renowned for their high efficiency and reliability, power transformers find applications across various sectors, including industry, infrastructure, power generation, and transmission.
Traction transformers: These transformers offer flexible power transformation solutions for rail operators and train manufacturers, accommodating high ratings within limited space constraints.
Transformers for industrial applications: Designed to withstand harsh conditions, these cost-efficient transformers are tailored to meet the specific demands of industrial environments.
Moreover, Siemens Energy's Sensformer® technology enhances transformer connectivity by integrating sensors to monitor vital operating parameters such as oil level, LV winding current, temperature, and GPS positioning, ensuring optimal performance and reliability.
2.2. Fuji Electric Co., Ltd.
Established: 1923
Location: Shinagawa City, Tokyo, Japan
Fuji Electric Co., Ltd. emerged from a strategic collaboration between "Furukawa Electric Co., Ltd." in Japan ,Beyond its expertise in power semiconductors and electronics, Fuji Electric delivers solutions in automation, energy conservation, power stabilization, and renewable energy.
The company offers a diverse range of low-voltage (LV), medium-voltage (MV), and extra-high-voltage (HV) products for electrical substations. It boasts a remarkable track record in supplying specialized transformers, including distribution transformers (DTR), power transformers (PTR), and generator step-up transformers (GSU).
Fuji Electric's Transmission and Distribution (T&D) solutions :
Renowned for quality and reliability, Fuji Electric's products cater to high-capacity and high-voltage applications, such as high-rise buildings, railway systems, and wind farms.
3. General Electric Company
Established: 1892
Location: Boston, Massachusetts, United States
General Electric Company (GE) stands as a prominent American conglomerate with diverse interests spanning industries like additive manufacturing, aviation, power, renewable energy, and finance.
Within its renewable energy arm, GE's Grid Solutions division offers a wide array of equipment, services, and systems tailored for power utilities and industries. Notably, its HV/MV equipment encompasses transformer solutions meticulously crafted to meet stringent operational demands in global electrical landscapes.
GE excels not only in specialized transformer services but also in transformer manufacturing, offering a comprehensive range of transformers, including:
Distribution transformers:
Special distribution transformers:
Network transformers and voltage regulators complement GE's transformer portfolio.
Power transformers: GE's high-performance power transformers, requiring minimal maintenance, support a wide voltage spectrum, ensuring reliability in power generation, transmission, and distribution.
Conventional power transformers:
Auto transformers:
Special power transformers, including phase-shifting transformers, transformers for SVC (Static Var Compensator) systems, industrial transformers, low-maintenance transformers, and HVDC converter transformers, showcase GE's commitment to innovation and versatility.
Green transformers: GE's environmentally friendly power transformers feature a hermetically sealed tank design, delivering multiple benefits such as energy efficiency, reduced CO2 emissions, noise mitigation, and space optimization.
4. Hitachi Energy
Location: Raleigh, North Carolina, United States
Hitachi Energy stands at the forefront of global innovation, offering an extensive array of products and solutions, including transformers catering to diverse sectors such as data centers, marine applications, power generation, distribution, transmission, and solar energy.
Furthermore, the company provides comprehensive transformer services, ensuring complete life-cycle support, including the provision of replacement components and parts.
Key offerings comprise:
EconiQ™ transformers: Hitachi Energy's EconiQ™ power and distribution transformers are meticulously crafted using scientific methodologies like Life Cycle Analysis. These transformers represent best-in-class solutions, delivering superior sustainability performance.
Transformers for floating applications: Hitachi Energy presents the OceaniQ™ portfolio, specially designed for floating, subsea, and fixed structure applications offshore. These solutions are engineered to withstand harsh marine conditions, significantly enhancing the global capacity for offshore wind energy development.
TXpert™ Enabled digital power transformer: Hitachi Energy's digitally enabled transformer is engineered to prevent failures and unplanned outages while optimizing asset performance. It plays a pivotal role in intelligent grid management, ensuring efficient and reliable power distribution.
TXpand™: Hitachi Energy offers the TXpand™ solution, a rupture-resistant transformer designed to absorb energy from faults effectively. This innovative solution minimizes risks, ensures uninterrupted power supply, and enhances safety for individuals in and around power substations.
2.5. Hyosung Heavy Industries Co., Ltd.
Established: 1962
Location: Seoul, South Korea
Hyosung Heavy Industries stands as a renowned global transformer manufacturer, recognized for delivering high-efficiency transformers, eco-friendly solutions, and tailor-made transformer systems across various industries including automotive, petrochemical, rail, shipbuilding, semiconductor, and steelworks.
Pioneering innovation, the company introduced the 154kV transformer for the first time in Korea, showcasing its commitment to advancing technological frontiers. With a rich project portfolio spanning over 70 countries worldwide, Hyosung Heavy Industries emerges as a leading supplier in Asia, North America, and South America.
The company's expertise spans diverse business domains, particularly in Transmission & Distribution, where it dominates the global heavy electric machinery market with a comprehensive range of offerings:
dry type Resin-cast transformers
Oil-immersed distribution transformers:
Power transformers
Specialized transformers
Founded: 1977
Location: Seoul, South Korea
The inauguration of the Electrical Engineering Division (EED) in 1977 as a new division of Hyundai Heavy Industries Co., Ltd. marked the beginning of a company, which has grown into a globally recognized name in the manufacturing and distribution of electrical equipment.
Hyundai Electric & Energy Systems Co., Ltd. is now an integrated solution provider with offerings, such as power transformers, marine distribution transformers, specialized transformers, high-voltage motors, and energy solutions.
Hyundai Electric exports transformers to 70+ countries worldwide and supplies transformers for use in apartments, electric arc furnaces, high-speed railways, industrial plants, subways, wind generators, etc.
Power transformers: produce extra-high-voltage transformers with diverse specifications up to 800 kV.
Distribution transformers
Marine distribution transformers:
Founded: 1967
Location: Liyang, Jiangsu, China
JiangSu HuaPeng Transformer Co., Ltd. (JSHP Transformer) is a family-owned manufacturer with an industry-leading reputation of being the world’s largest medium power transformer (MPT) producer.
JSHP transformers include:
According to company data (2022), it has been serving:
In addition, the company mentions a track record of delivering:
8. TBEA Co., Ltd.
Established: 1938
Location: China
TBEA holds the distinction of pioneering China's first power transformer in 1938. Today, it stands as a globally renowned manufacturer of power transmission and distribution equipment, boasting 18 domestic industrial parks and three overseas manufacturing bases.
TBEA's transformer lineup adheres to industry benchmarks such as AS (Australian), BS (British), CSA (Canadian), IEEE (American), IS (Indian), and Technical Standards of IEC (International).
The hallmark characteristics of TBEA's transformers encompass:
TBEA caters to diverse voltage transformation and power transmission needs across power grids, plants, and large enterprises with offerings including:
9. Imefy Group
Established: 1975 Location: Spain
Imefy Group is a company that operates in the technology and software development industry. They specialize in providing various services such as web development, mobile app development, software solutions, and IT consulting. The company might have a specific focus or expertise within these areas, depending on their business model and client base.
oil immersed transformers
dry type transformer
power transformers
10. EFACEC Power Solutions SGPS, S.A. (Efacec)
Established: 1948
Location: Leça do Balio, Matosinhos, Portugal
Originally venturing into the realm of electricity, encompassing accessories, generators, motors, and transformers, Efacec has evolved into a prominent Portuguese entity with a global footprint spanning across 65 countries, bolstering its reputation as a robust exporter.
Innovating in 2020, the company introduced a revolutionary modular system, earning the esteemed Red Dot Award in 2021 for its exceptional industrial design prowess.
Efacec offers an extensive range of products, including:
Power Transformers:
Mobile Solutions: UP TO 90MVA AND 245KV
Efacec's mobile solutions efficiently substitute power transformers or substations, catering to various applications such as construction, maintenance, temporary power provision, and emergency scenarios like fire, flood, or outages.
Distribution Transformers:
