Oil Immersed Current Transformer Market Size - By Product, By Voltage Rating, By Application, Analysis, Share, Growth Forecast, 2025 – 2034

Oil Immersed Current Transformer Market Size

The global oil immersed current transformer market size was anticipated at USD 1.8 billion in 2024 and is expected to witness a CAGR of 6.3% between 2025 and 2034, driven by the increasing demand for reliable and efficient power systems.
 

As global energy consumption rises, particularly in emerging economies, the need for upgraded and expanded electrical infrastructure is pushing the demand for oil-immersed CTs. These transformers are essential components in power transmission and distribution networks, enabling the monitoring and protection of high-voltage systems. The global rise in electricity consumption, coupled with government investments in energy infrastructure, is expected to propel the market forward.
 

A key trend shaping the oil-immersed current transformer industry is the growing focus on sustainability and environmental considerations. Traditional oil-based transformers face criticism due to concerns about the environmental impact of the oils used, including risks of leakage and disposal challenges. As a result, manufacturers are focusing on developing more eco-friendly solutions, such as using biodegradable oils or adopting hybrid transformer designs that reduce environmental risks. Despite these concerns, oil-immersed CTs remain in demand for high-voltage applications due to their proven reliability and efficiency.
 

Oil Immersed Current Transformer Market Trends

Technological advancements are also influencing the oil immersed current transformer industry, particularly in terms of accuracy, efficiency, and integration with digital technologies. The development of new materials and innovations in design are enhancing the performance of oil-immersed current transformers, allowing for improved accuracy in measuring current and voltage. Additionally, the growing adoption of smart grids, which incorporate advanced communication and automation features, is encouraging the integration of oil-immersed CTs with digital and IoT systems, allowing for real-time monitoring and predictive maintenance, thereby improving grid performance.
 

Oil Immersed Current Transformer Market Analysis

Based on product, the market is segmented into wound type, toroidal, bar type and others. The wound type is set to reach a value of over USD 1.1 billion by 2034. Wound-type oil-immersed CTs are widely used in medium to high-voltage power systems, where they offer high accuracy and reliability in measuring electrical current. These transformers are primarily used for protection and metering in electrical power networks, substations, and industrial applications, where the accurate measurement of high currents is essential for the safe and efficient operation of electrical systems.
 

The oil immersed current transformer market is classified by application into power distribution, manufacturing and others. Power distribution segment expected to expand at a CAGR of more than 5.4% through 2034. As global energy consumption continues to rise, particularly in emerging economies with rapid industrialization and urbanization, the demand for reliable power distribution systems has surged.
 

Oil-immersed CTs are essential in power distribution networks due to their ability to handle high-voltage environments, provide accurate current measurement, and ensure the safe operation of electrical systems. These transformers are commonly used in substations, transmission lines, and power distribution grids to protect the infrastructure from faults and overloads.
 

U.S. oil immersed current transformer market is projected to exceed USD 278 million by 2034, driven by the need for grid modernization, the adoption of smart grid technologies, and environmental regulatory pressures. As the U.S. continues to focus on enhancing its power infrastructure and meeting environmental goals, oil-immersed CTs will likely evolve to meet the demands of a changing energy landscape, though their long-term role may face competition from alternative transformer technologies.
 

The oil-immersed current transformer industry in Europe is influenced by a combination of technological advancements, environmental regulations, and shifts in the energy landscape. As Europe continues to prioritize the modernization of its power infrastructure, the demand for reliable and sustainable power distribution solutions remains high. Oil-immersed CTs play a critical role in high-voltage transmission and distribution systems, where accuracy, protection, and monitoring are essential for grid stability.
 

Oil Immersed Current Transformer Market Share

General Electric (GE) is one of the largest multinational conglomerates in the world, with a strong presence in the energy sector, including the design and manufacturing of transformers. GE’s expertise spans across a wide range of industries, from power generation to renewable energy, transportation, healthcare, and more. Within the energy sector, GE has a long history of producing high-quality transformers, including oil immersed current transformers, which are used in various industrial, commercial, and utility applications.
 

Oil Immersed Current Transformer Market Companies

Some of the key market players operating across the oil immersed current transformer industry are:

• ABB
• Amran
• ARTECHE
• Automatic Electric
• CG Power and Industrial Solutions
• Dalian Huayi Electric Power Electric Appliances
• General Electric
• Guangdong Sihui Instrument Transformer Works
• Hitachi Energy
• Instrument Transformers
• Macroplast
• NISSIN ELECTRIC
• Peak Demand
• Samata Electricals
• Siemens Energy
• Wenzhou Unisun Electric
   

Oil Immersed Current Transformer Industry News:

• In February 2024, Germany-based Siemens Energy announced investment of $150 million to expand operations at its existing transformer factory in Charlotte, North Carolina, to produce 57 LPTs per year with a capacity of 15,000 MVA by the end of 2026. The expansion will help increase employment.
   

The oil immersed current transformer market research report includes an in-depth coverage of the industry with estimates & forecast in terms of revenue and volume in USD Million and ‘000 Units from 2021 to 2034, for the following segments:

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Market, By Product

• Wound type
• Toroidal
• Bar type
• Others

Market, By Voltage Rating

• ≤ 33 kV
• > 33 kV to ≤ 66 kV
• > 66 kV

Market, By Application

• Power distribution
• Manufacturing
• Others

The above information has been provided for the following regions and countries:

• North America
  • U.S.
  • Canada
  • Mexico
• Europe
  • UK
  • France
  • Germany
  • Italy
  • Russia
  • Spain
• Asia Pacific
  • China
  • Australia
  • India
  • Japan
  • South Korea
• Middle East & Africa
  • Saudi Arabia
  • UAE
  • Turkey
  • South Africa
  • Egypt
• Latin America
  • Brazil
  • Argentina