According to our (Global Info Research) latest study, the global Optical Current Transformer market size was valued at US$ 508 million in 2025 and is forecast to a readjusted size of US$ 1597 million by 2032 with a CAGR of 18.0% during review period.
Optical Current Transformer (OCT), also known as magneto-optical optical current transformer, is a large category of electronic current transformers. Its working principle is mainly to use the Faraday magneto-optical effect to measure current based on the principle of Faraday magneto-optical effect. The magnetic field around the measured current is linearly integrated, and the change of polarization angle is converted into the change of output light by using the analyzer. Then, after a series of signal processing, it can not only detect the size of the changing current, but also make accurate measurements of the steady current. The optical current transformer is similar in appearance to the traditional transformer, but is small in size and light in weight. It mainly consists of three parts: sensor head, insulating support and optical cable.
The continuous progress of science and technology has provided technical support for optical current transformers. Due to the various advantages of optical current transformers over traditional transformers, optical current transformers have attracted the attention of the market and their technical level has been continuously broken through.
Due to the small size and simple insulation structure of optical current transformers; no iron core, no magnetic saturation and ferromagnetic resonance; good anti-electromagnetic interference, etc., they are widely used in substations, converter stations, DC power grids, smart grids and other fields. Therefore, domestic and foreign universities, scientific research institutions, and manufacturers continue to increase their investment in scientific research and continuously develop and manufacture photoelectric current transformers of various voltage levels.
With the rapid development of substations, converter stations, DC power grids, and smart grids, the optical current transformer industry has also ushered in a huge development opportunity. The advancement of informatization and intelligence will bring a huge market for the optical current transformer industry. The development of power systems, smart grids, large current measurement, electroplating metallurgy, electromagnetic weapon systems and other fields will bring broad application space for the optical current transformer industry.
In recent years, the country has successively introduced a series of policy measures to support high-end transformers in the power industry, which has greatly improved the matching and allocation of relevant resources, created a good policy and market environment for the development of the transformer industry, and optical current transformers have also ushered in an important development window.
This report is a detailed and comprehensive analysis for global Optical Current Transformer market. Both quantitative and qualitative analyses are presented by manufacturers, by region & country, by Type and by Application. As the market is constantly changing, this report explores the competition, supply and demand trends, as well as key factors that contribute to its changing demands across many markets. Company profiles and product examples of selected competitors, along with market share estimates of some of the selected leaders for the year 2025, are provided.
Key Features:
Global Optical Current Transformer market size and forecasts, in consumption value ($ Million), sales quantity (K Units), and average selling prices (US$/Unit), 2021-2032
Global Optical Current Transformer market size and forecasts by region and country, in consumption value ($ Million), sales quantity (K Units), and average selling prices (US$/Unit), 2021-2032
Global Optical Current Transformer market size and forecasts, by Type and by Application, in consumption value ($ Million), sales quantity (K Units), and average selling prices (US$/Unit), 2021-2032
Global Optical Current Transformer market shares of main players, shipments in revenue ($ Million), sales quantity (K Units), and ASP (US$/Unit), 2021-2026
The Primary Objectives in This Report Are:
To determine the size of the total market opportunity of global and key countries
To assess the growth potential for Optical Current Transformer
To forecast future growth in each product and end-use market
To assess competitive factors affecting the marketplace
This report profiles key players in the global Optical Current Transformer market based on the following parameters - company overview, sales quantity, revenue, price, gross margin, product portfolio, geographical presence, and key developments. Key companies covered as a part of this study include ABB, Profotech, Trench Group, T&D Products Ltd, NR Electric Co., Ltd., Arteche, GE, Yangtze Optical Electronic Co.,Ltd., Comcore Optical Intelligence Technologies Co., Ltd., etc.
This report also provides key insights about market drivers, restraints, opportunities, new product launches or approvals.
Market Segmentation
Optical Current Transformer market is split by Type and by Application. For the period 2021-2032, the growth among segments provides accurate calculations and forecasts for consumption value by Type, and by Application in terms of volume and value. This analysis can help you expand your business by targeting qualified niche markets.
Market segment by Type
Fiber Optical Current Transformer (FOCT)
Hybrid Optical Current Transformer (HOCT)
Market segment by Application
Substation
Converter Station
DC Power Grid
Smart Grid
Others
Major players covered
ABB
Profotech
Trench Group
T&D Products Ltd
NR Electric Co., Ltd.
Arteche
GE
Yangtze Optical Electronic Co.,Ltd.
Comcore Optical Intelligence Technologies Co., Ltd.
Market segment by region, regional analysis covers
North America (United States, Canada, and Mexico)
Europe (Germany, France, United Kingdom, Russia, Italy, and Rest of Europe)
Asia-Pacific (China, Japan, Korea, India, Southeast Asia, and Australia)
South America (Brazil, Argentina, Colombia, and Rest of South America)
Middle East & Africa (Saudi Arabia, UAE, Egypt, South Africa, and Rest of Middle East & Africa)
The content of the study subjects, includes a total of 15 chapters:
Chapter 1, to describe Optical Current Transformer product scope, market overview, market estimation caveats and base year.
Chapter 2, to profile the top manufacturers of Optical Current Transformer, with price, sales quantity, revenue, and global market share of Optical Current Transformer from 2021 to 2026.
Chapter 3, the Optical Current Transformer competitive situation, sales quantity, revenue, and global market share of top manufacturers are analyzed emphatically by landscape contrast.
Chapter 4, the Optical Current Transformer breakdown data are shown at the regional level, to show the sales quantity, consumption value, and growth by regions, from 2021 to 2032.
Chapter 5 and 6, to segment the sales by Type and by Application, with sales market share and growth rate by Type, by Application, from 2021 to 2032.
Chapter 7, 8, 9, 10 and 11, to break the sales data at the country level, with sales quantity, consumption value, and market share for key countries in the world, from 2021 to 2026.and Optical Current Transformer market forecast, by regions, by Type, and by Application, with sales and revenue, from 2027 to 2032.
Chapter 12, market dynamics, drivers, restraints, trends, and Porters Five Forces analysis.
Chapter 13, the key raw materials and key suppliers, and industry chain of Optical Current Transformer.
Chapter 14 and 15, to describe Optical Current Transformer sales channel, distributors, customers, research findings and conclusion.
Summary:
Get latest Market Research Reports on Optical Current Transformer. Industry analysis & Market Report on Optical Current Transformer is a syndicated market report, published as Global Optical Current Transformer Market 2026 by Manufacturers, Regions, Type and Application, Forecast to 2032. It is complete Research Study and Industry Analysis of Optical Current Transformer market, to understand, Market Demand, Growth, trends analysis and Factor Influencing market.