South Korea Oil Filled Transformer Market (2025-2031) | Share, Size, Growth, Outlook, Analysis, Value, Industry, Companies, Trends, Revenue & Forecast

Market Forecast By Core (Closed, Shell, Berry), By Product (Distribution Transformer, Power Transformer, Instrument Transformer, Others), By Winding (Two Winding, Auto Transformer), By Installation (Outdoor, Indoor), By Modes of Cooling (ONAN, ONWF, ONAF, Others), By Phase (Three, Single), By Mounting (Pad, Pole, Foundation, Others), By Rating (< 5 MVA, 5 MVA - 10 MVA, > 10 MVA) And Competitive Landscape

Product Code: ETC267923 Publication Date: Aug 2022 Updated Date: Aug 2025 Product Type: Market Research Report
Publisher: 6Wresearch No. of Pages: 75 No. of Figures: 35 No. of Tables: 20

South Korea Oil Filled Transformer Market Highlights

Report Name South Korea Oil Filled Transformer Market 
Forecast period 2025-2031
CAGR 6.5%
Growing Sector Infrastructure Sector

Topics Covered in South Korea Oil Filled Transformer Market

The South Korea Oil Filled Transformer Market Report thoroughly covers the market by Core, Product, Winding, Installation, Modes Of Cooling, Phase, Mounting and Rating. The South Korea Oil Filled Transformer Market Outlook report provides an unbiased and detailed analysis of the ongoing South Korea Oil Filled Transformer Market trends, opportunities/high growth areas, and market drivers. This would help stakeholders devise and align their market strategies according to the current and future market dynamics.

South Korea Oil Filled Transformer Market Synopsis

The South Korea Oil Filled Transformer market is predicted to experience substantial growth driven by increased investment in power infrastructure and the emergence of more efficient transformers. The market growth is stimulated by the demand for stable power supply combined with technologically advanced solutions.

According to 6Wresearch, The South Korea Oil Filled Transformer Market size is projected to grow at a CARG of 6.5% during 2025-2031. The increasing demand for diverse types of transformers, owing to variance in power supply needs, drives the market growth. More specialized transformers are required for complex power distribution operations, thus leading to an increased use of diverse Oil Filled Transformer types. Improvements in infrastructure, market segmentation strategies, and innovative solutions tailored to niche markets are driving market growth. Furthermore, the urban population expansion and the need for efficient power supply methods are propelling the Oil Filled Transformer market in South Korea.

Despite the growing demand for Oil Filled Transformers in South Korea, the market faces several challenges such as managing aging transformer fleets, assessing maintenance needs, and planning for timely replacements pose challenges in ensuring grid reliability, minimizing downtime, and optimizing asset performance.

South Korea Oil Filled Transformer Market Key Players

The South Korea Oil Filled Transformer Market is experiencing significant growth, with key players like Hyundai, Tata Daewoo, and Dongfeng. These industry leaders are recognized for their technologically advanced and robust transformers. They focus on innovative designs and customer-centric strategies to strengthen their market positions. Their transformers are known for performance, safety, and efficiency, catering to varied power distribution needs.

Government Policy of the Market

Government investments in power infrastructure and prevention systems support the market access, creating opportunities for Oil Filled Transformer use in metropolitan areas. Government initiatives aimed at modernizing power distribution capabilities often involve the replacement of old transformers with newer, more advanced models. These initiatives drive market growth by creating opportunities for manufacturers to supply state-of-the-art models. The government budget allocation for energy sector influences the investment in new transformers.

Future Insights of the Market

The market is likely to witness a surge in technological advancements in transformer design and capabilities. Innovations such as improved equipment, advanced communication systems, and enhanced safety features are expected to shape the future of Oil Filled Transformers in South Korea. With an increasing focus on energy management and modernization of power infrastructure, the South Korea Oil Filled Transformer Market is projected to expand in terms of market size and deployment of specialized transformers tailored to meet evolving needs. The growing emphasis on environmental sustainability and energy efficiency is likely to influence the development of eco-friendly transformers in the market.

Market Segmentation By Core

According to Ravi Bhandari, Research Head, 6Wresearch, the Closed-Core Transformers is witnessing growth due to the compact design of closed-core transformers allows for space-saving installations, making them ideal for urban areas and applications with limited footprint requirements.

Market Segmentation By Product

The South Korea Oil-Filled Transformer Market is witnessing growth in Distribution Transformers due to upgrading aging distribution infrastructure with modern, energy-efficient transformers helps reduce energy losses, improve voltage regulation, and enhance overall system reliability, driving the demand for distribution transformers.

Market Segmentation By Winding

The Two-Winding Transformers is experiencing growth due to their essential role in interconnecting substations, power plants, and grid networks, ensuring reliable power transmission, system stability, and load balancing across the grid.

Market Segmentation By Installation

The Outdoor Transformers is experiencing growth due to their space-efficient design, allowing for installations in substations, power plants, and rural areas where land availability may be a constraint for indoor installations.

Market Segmentation By Modes of Cooling

The  ONAN (Oil Natural Air Natural) is experiencing growth due to its simplicity, reliability, and cost-effectiveness, making it suitable for low to medium power transformers where natural convection and radiation cooling are sufficient.

Market Segmentation By Phase

The South Korea Oil-Filled Transformer Market is seeing growth in Three-Phase Transformers driven by industrial sectors requiring three-phase power for machinery, manufacturing processes, HVAC systems, and other equipment demanding balanced three-phase power supply.

Market Segmentation By Mounting

The South Korea Oil-Filled Transformer Market is witnessing growth in Pad-Mounted Transformers due to Pad-mounted transformers are commonly used in urban areas, residential neighborhoods, and commercial zones where above-ground installations are preferred due to space constraints, aesthetic considerations, and accessibility for maintenance.

Market Segmentation By Rating

The South Korea Oil-Filled Transformer Market is experiencing growth in Transformers with Rating < 5 MVA driven by distributed generation projects, renewable energy integration, and decentralized power supply initiatives that require compact, low-capacity transformers to support localized power generation and consumption.

Key Attractiveness of the Report

  • 10 Years of Market Numbers.
  • Historical Data Starting from 2021 to 2024.
  • Base Year 2024
  • Forecast Data until 2031.
  • Key Performance Indicators Impacting the Market.
  • Major Upcoming Developments and Projects.

Key Highlights of the Report:

  • South Korea Oil Filled Transformer Market Outlook
  • Market Size of South Korea Oil Filled Transformer Market, 2024
  • Forecast of South Korea Oil Filled Transformer Market, 2031
  • Historical Data and Forecast of South Korea Oil Filled Transformer Revenues & Volume for the Period 2021 - 2031
  • South Korea Oil Filled Transformer Market Trend Evolution
  • South Korea Oil Filled Transformer Market Drivers and Challenges
  • South Korea Oil Filled Transformer Price Trends
  • South Korea Oil Filled Transformer Porter's Five Forces
  • South Korea Oil Filled Transformer Industry Life Cycle
  • Historical Data and Forecast of South Korea Oil Filled Transformer Market Revenues & Volume By Core for the Period 2021 - 2031
  • Historical Data and Forecast of South Korea Oil Filled Transformer Market Revenues & Volume By Closed for the Period 2021 - 2031
  • Historical Data and Forecast of South Korea Oil Filled Transformer Market Revenues & Volume By Shell for the Period 2021 - 2031
  • Historical Data and Forecast of South Korea Oil Filled Transformer Market Revenues & Volume By Berry for the Period 2021 - 2031
  • Historical Data and Forecast of South Korea Oil Filled Transformer Market Revenues & Volume By Product for the Period 2021 - 2031
  • Historical Data and Forecast of South Korea Oil Filled Transformer Market Revenues & Volume By Distribution Transformer for the Period 2021 - 2031
  • Historical Data and Forecast of South Korea Oil Filled Transformer Market Revenues & Volume By Power Transformer for the Period 2021 - 2031
  • Historical Data and Forecast of South Korea Oil Filled Transformer Market Revenues & Volume By Instrument Transformer for the Period 2021 - 2031
  • Historical Data and Forecast of South Korea Oil Filled Transformer Market Revenues & Volume By Others for the Period 2021 - 2031
  • Historical Data and Forecast of South Korea Oil Filled Transformer Market Revenues & Volume By Winding for the Period 2021 - 2031
  • Historical Data and Forecast of South Korea Oil Filled Transformer Market Revenues & Volume By Two Winding for the Period 2021 - 2031
  • Historical Data and Forecast of South Korea Oil Filled Transformer Market Revenues & Volume By Auto Transformer for the Period 2021 - 2031
  • Historical Data and Forecast of South Korea Oil Filled Transformer Market Revenues & Volume By Installation for the Period 2021 - 2031
  • Historical Data and Forecast of South Korea Oil Filled Transformer Market Revenues & Volume By Outdoor for the Period 2021 - 2031
  • Historical Data and Forecast of South Korea Oil Filled Transformer Market Revenues & Volume By Indoor for the Period 2021 - 2031
  • Historical Data and Forecast of South Korea Oil Filled Transformer Market Revenues & Volume By Modes of Cooling for the Period 2021 - 2031
  • Historical Data and Forecast of South Korea Oil Filled Transformer Market Revenues & Volume By ONAN for the Period 2021 - 2031
  • Historical Data and Forecast of South Korea Oil Filled Transformer Market Revenues & Volume By ONWF for the Period 2021 - 2031
  • Historical Data and Forecast of South Korea Oil Filled Transformer Market Revenues & Volume By ONAF for the Period 2021 - 2031
  • Historical Data and Forecast of South Korea Oil Filled Transformer Market Revenues & Volume By Others for the Period 2021 - 2031
  • Historical Data and Forecast of South Korea Oil Filled Transformer Market Revenues & Volume By Phase for the Period 2021 - 2031
  • Historical Data and Forecast of South Korea Oil Filled Transformer Market Revenues & Volume By Three for the Period 2021 - 2031
  • Historical Data and Forecast of South Korea Oil Filled Transformer Market Revenues & Volume By Single for the Period 2021 - 2031
  • Historical Data and Forecast of South Korea Oil Filled Transformer Market Revenues & Volume By Mounting for the Period 2021 - 2031
  • Historical Data and Forecast of South Korea Oil Filled Transformer Market Revenues & Volume By Pad for the Period 2021 - 2031
  • Historical Data and Forecast of South Korea Oil Filled Transformer Market Revenues & Volume By Pole for the Period 2021 - 2031
  • Historical Data and Forecast of South Korea Oil Filled Transformer Market Revenues & Volume By Foundation for the Period 2021 - 2031
  • Historical Data and Forecast of South Korea Oil Filled Transformer Market Revenues & Volume By Others for the Period 2021 - 2031
  • Historical Data and Forecast of South Korea Oil Filled Transformer Market Revenues & Volume By Rating for the Period 2021 - 2031
  • Historical Data and Forecast of South Korea Oil Filled Transformer Market Revenues & Volume By < 5 MVA for the Period 2021 - 2031
  • Historical Data and Forecast of South Korea Oil Filled Transformer Market Revenues & Volume By 5 MVA - 10 MVA for the Period 2021 - 2031
  • Historical Data and Forecast of South Korea Oil Filled Transformer Market Revenues & Volume By > 10 MVA for the Period 2021 - 2031
  • South Korea Oil Filled Transformer Import Export Trade Statistics
  • Market Opportunity Assessment By Core
  • Market Opportunity Assessment By Product
  • Market Opportunity Assessment By Winding
  • Market Opportunity Assessment By Installation
  • Market Opportunity Assessment By Modes of Cooling
  • Market Opportunity Assessment By Phase
  • Market Opportunity Assessment By Mounting
  • Market Opportunity Assessment By Rating
  • South Korea Oil Filled Transformer Top Companies Market Share
  • South Korea Oil Filled Transformer Competitive Benchmarking By Technical and Operational Parameters
  • South Korea Oil Filled Transformer Company Profiles
  • South Korea Oil Filled Transformer Key Strategic Recommendations

Market Scope and Segmentation

The report provides a detailed analysis of the following market segments

By Core

  • Closed
  • Shell
  • Berry

By Product

  • Distribution Transformer
  • Power Transformer
  • Instrument Transformer
  • Others

By Winding

  • Two Winding
  • Auto Transformer

By Installation

  • Outdoor
  • Indoor

By Modes Of Cooling

  • ONAN
  • ONWF
  • ONAF
  • Others

By Phase

  • Three
  • Single

By Mounting

  • Pad
  • Pole
  • Foundation
  • Others

By Rating

  • < 5 MVA
  • 5 MVA - 10 MVA
  • > 10 MVA

South Korea Oil Filled Transformer Market (2025-2031): FAQs

The growth of the Oil Filled Transformer market in South Korea is primarily driven by factors such as increasing urbanization, rising demand for stable power supply, government support for power infrastructure measures, and technological advancements in transformer manufacturing.
In the South Korea market, a range of transformer types are popular, including closed core, shell core, and berry core transformers, catering to diverse power distribution needs across the country.
Challenges in the South Korea Oil Filled Transformer industry include fluctuating funding sources, access to financing for power sector, infrastructure limitations in rural areas, competition from used transformer markets, and regulatory constraints impacting transformer imports.
Future trends in the South Korea Oil Filled Transformer market include the adoption of smart technologies, sustainable power practices, digital connectivity solutions, and customization options to meet evolving requirements and environmental sustainability goals.
6Wresearch actively monitors the South Korea Oil Filled Transformer Market and publishes its comprehensive annual report, highlighting emerging trends, growth drivers, revenue analysis, and forecast outlook. Our insights help businesses to make data-backed strategic decisions with ongoing market dynamics. Our analysts track relevent industries related to the South Korea Oil Filled Transformer Market, allowing our clients with actionable intelligence and reliable forecasts tailored to emerging regional needs.
Yes, we provide customisation as per your requirements. To learn more, feel free to contact us on sales@6wresearch.com
1 Executive Summary
2 Introduction
2.1 Key Highlights of the Report
2.2 Report Description
2.3 Market Scope & Segmentation
2.4 Research Methodology
2.5 Assumptions
3 South Korea Oil Filled Transformer Market Overview
3.1 South Korea Country Macro Economic Indicators
3.2 South Korea Oil Filled Transformer Market Revenues & Volume, 2021 & 2031F
3.3 South Korea Oil Filled Transformer Market - Industry Life Cycle
3.4 South Korea Oil Filled Transformer Market - Porter's Five Forces
3.5 South Korea Oil Filled Transformer Market Revenues & Volume Share, By Core, 2021 & 2031F
3.6 South Korea Oil Filled Transformer Market Revenues & Volume Share, By Product, 2021 & 2031F
3.7 South Korea Oil Filled Transformer Market Revenues & Volume Share, By Winding, 2021 & 2031F
3.8 South Korea Oil Filled Transformer Market Revenues & Volume Share, By Installation, 2021 & 2031F
3.9 South Korea Oil Filled Transformer Market Revenues & Volume Share, By Modes of Cooling, 2021 & 2031F
3.10 South Korea Oil Filled Transformer Market Revenues & Volume Share, By Phase, 2021 & 2031F
3.11 South Korea Oil Filled Transformer Market Revenues & Volume Share, By Mounting, 2021 & 2031F
4 South Korea Oil Filled Transformer Market Dynamics
4.1 Impact Analysis
4.2 Market Drivers
4.2.1 Increasing demand for electricity in South Korea
4.2.2 Growing focus on renewable energy sources
4.2.3 Government initiatives to modernize power infrastructure
4.3 Market Restraints
4.3.1 Environmental concerns related to oil-filled transformers
4.3.2 Fluctuations in raw material prices
4.3.3 Competition from alternative transformer technologies
5 South Korea Oil Filled Transformer Market Trends
6 South Korea Oil Filled Transformer Market, By Types
6.1 South Korea Oil Filled Transformer Market, By Core
6.1.1 Overview and Analysis
6.1.2 South Korea Oil Filled Transformer Market Revenues & Volume, By Core, 2021 - 2031F
6.1.3 South Korea Oil Filled Transformer Market Revenues & Volume, By Closed, 2021 - 2031F
6.1.4 South Korea Oil Filled Transformer Market Revenues & Volume, By Shell, 2021 - 2031F
6.1.5 South Korea Oil Filled Transformer Market Revenues & Volume, By Berry, 2021 - 2031F
6.2 South Korea Oil Filled Transformer Market, By Product
6.2.1 Overview and Analysis
6.2.2 South Korea Oil Filled Transformer Market Revenues & Volume, By Distribution Transformer, 2021 - 2031F
6.2.3 South Korea Oil Filled Transformer Market Revenues & Volume, By Power Transformer, 2021 - 2031F
6.2.4 South Korea Oil Filled Transformer Market Revenues & Volume, By Instrument Transformer, 2021 - 2031F
6.2.5 South Korea Oil Filled Transformer Market Revenues & Volume, By Others, 2021 - 2031F
6.3 South Korea Oil Filled Transformer Market, By Winding
6.3.1 Overview and Analysis
6.3.2 South Korea Oil Filled Transformer Market Revenues & Volume, By Two Winding, 2021 - 2031F
6.3.3 South Korea Oil Filled Transformer Market Revenues & Volume, By Auto Transformer, 2021 - 2031F
6.4 South Korea Oil Filled Transformer Market, By Installation
6.4.1 Overview and Analysis
6.4.2 South Korea Oil Filled Transformer Market Revenues & Volume, By Outdoor, 2021 - 2031F
6.4.3 South Korea Oil Filled Transformer Market Revenues & Volume, By Indoor, 2021 - 2031F
6.5 South Korea Oil Filled Transformer Market, By Modes of Cooling
6.5.1 Overview and Analysis
6.5.2 South Korea Oil Filled Transformer Market Revenues & Volume, By ONAN, 2021 - 2031F
6.5.3 South Korea Oil Filled Transformer Market Revenues & Volume, By ONWF, 2021 - 2031F
6.5.4 South Korea Oil Filled Transformer Market Revenues & Volume, By ONAF, 2021 - 2031F
6.5.5 South Korea Oil Filled Transformer Market Revenues & Volume, By Others, 2021 - 2031F
6.6 South Korea Oil Filled Transformer Market, By Phase
6.6.1 Overview and Analysis
6.6.2 South Korea Oil Filled Transformer Market Revenues & Volume, By Three, 2021 - 2031F
6.6.3 South Korea Oil Filled Transformer Market Revenues & Volume, By Single, 2021 - 2031F
6.7 South Korea Oil Filled Transformer Market, By Mounting
6.7.1 Overview and Analysis
6.7.2 South Korea Oil Filled Transformer Market Revenues & Volume, By Pad, 2021 - 2031F
6.7.3 South Korea Oil Filled Transformer Market Revenues & Volume, By Pole, 2021 - 2031F
6.7.4 South Korea Oil Filled Transformer Market Revenues & Volume, By Others, 2021 - 2031F
6.7.5 South Korea Oil Filled Transformer Market Revenues & Volume, By Others, 2021 - 2031F
6.8 South Korea Oil Filled Transformer Market, By Rating
6.8.1 Overview and Analysis
6.8.2 South Korea Oil Filled Transformer Market Revenues & Volume, By < 5 MVA, 2021 - 2031F
6.8.3 South Korea Oil Filled Transformer Market Revenues & Volume, By 5 MVA - 10 MVA, 2021 - 2031F
6.8.4 South Korea Oil Filled Transformer Market Revenues & Volume, By , 2021 - 2031F
7 South Korea Oil Filled Transformer Market Import-Export Trade Statistics
7.1 South Korea Oil Filled Transformer Market Export to Major Countries
7.2 South Korea Oil Filled Transformer Market Imports from Major Countries
8 South Korea Oil Filled Transformer Market Key Performance Indicators
8.1 Average age of existing transformers in South Korea
8.2 Investment in power grid infrastructure projects
8.3 Adoption rate of eco-friendly transformer technologies
8.4 Number of power outages and downtime related to transformer failures
8.5 Regulatory compliance and safety standards adherence in the transformer industry
9 South Korea Oil Filled Transformer Market - Opportunity Assessment
9.1 South Korea Oil Filled Transformer Market Opportunity Assessment, By Core, 2021 & 2031F
9.2 South Korea Oil Filled Transformer Market Opportunity Assessment, By Product, 2021 & 2031F
9.3 South Korea Oil Filled Transformer Market Opportunity Assessment, By Winding, 2021 & 2031F
9.4 South Korea Oil Filled Transformer Market Opportunity Assessment, By Installation, 2021 & 2031F
9.5 South Korea Oil Filled Transformer Market Opportunity Assessment, By Modes of Cooling, 2021 & 2031F
9.6 South Korea Oil Filled Transformer Market Opportunity Assessment, By Phase, 2021 & 2031F
9.7 South Korea Oil Filled Transformer Market Opportunity Assessment, By Mounting, 2021 & 2031F
9.7 South Korea Oil Filled Transformer Market Opportunity Assessment, By Rating, 2021 & 2031F
10 South Korea Oil Filled Transformer Market - Competitive Landscape
10.1 South Korea Oil Filled Transformer Market Revenue Share, By Companies, 2024
10.2 South Korea Oil Filled Transformer Market Competitive Benchmarking, By Operating and Technical Parameters
11 Company Profiles
12 Recommendations
13 Disclaimer
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