hybrid transformer
Hybrid Transformer
An all-in-one transformer integrating transformer and harmonic attenuation functions,
developed as the industry’s first solution through joint R&D with Korea’s five KEPCO generation subsidiaries and certified under the NET and Green Technology programs.
Why Hybrid?
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01
Optimized for harmonic-intensive environments
A solution tailored for environments with high harmonic generation, including AI data centers, smart farms, and automated facilities.
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02
Higher efficiency and lower operating cost
By reducing harmonic-related losses and temperature rise, the Hybrid Transformer maximizes energy efficiency and lowers operating costs.
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03
Lower CAPEX and smaller installation footprint
Because no separate harmonic filter is required, both initial investment cost and installation space can be reduced.
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04
Government support for up to 70% of replacement cost
Eligible government support programs may cover up to 70% of replacement costs, depending on program terms and site conditions.
Expected Benefits
Accredited performance tests verified reductions in harmonics, power loss, and winding temperature.
- Conventional Transformer
- Hybrid Transformer
- Conventional Transformer
- Hybrid Transformer
- Conventional Transformer
- Hybrid Transformer
Source: Accredited test report | Test Institution: Korea Electrotechnology Research Institute (KERI) | Test Sample: Cast-resin transformer, 1,000 kVA
Annual CO₂ Emissions Reduction
CO₂ calculation based on the National Institute of Forest Science conversion factor:
1 kW of electricity = 0.5 kg CO2
Strong Economic Value
Compared with conventional transformers, the Hybrid Transformer reduces operating cost and lifecycle cost (LCC), while cutting equipment CAPEX by up to 40% versus competing configurations.
Reduced CAPEX
No separate harmonic filter is required, lowering initial investment cost.
- 몰드 1,500kVA 기준
Reduced OPEX
Lower annual power consumption from harmonic mitigation reduces electricity charges and lifecycle cost.
KRW 127 million reduction in lifecycle cost.
- 설비 투자비 : 물가정보 2025.03, 몰드 변압기 판매단가
- 운영 비용 : 일반용(을)Ⅱ 요금, 최대부하 45%, 중부하 35%, 경부하 20%, THD 25.5% 기준
- 폐기 비용 : 2025.03 평균 시세
- 20년간 운영 비용 : 년간 운영 비용 × 20
- 20년간 LCC 총 비용 : 설비 투자비 + 20년 운영비용 + 폐기비용
Certifications
Officially recognized for technical excellence through NET, Green Technology, Procurement Excellent Product, LH New Technology, and other major certifications.
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신기술(NET)인증 -
녹색기술인증 -
조달우수제품지정 -
LH우수신기술(제품)선정 -
성능인증
Patents
Core technologies protected by patents in Korea, the United States, and China.
National Professional Engineer Examination
The Hybrid Transformer has appeared multiple times in Korea’s national Professional Engineer examination, demonstrating recognized technical credibility.
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4. … 특고압(22.9kV 저압) 변압기로서 적용이 증가 되는 하이브리드 변압기의 개념과 권선법을 설명하고, 그 특성을 일반 변압기 및 저소음 고효율 변압기와 비교하여 설명하시오. 4. Explain the concept and winding method of the Hybrid Transformer, increasingly applied to extra-high-voltage (22.9 kV/LV) transformers, and compare its characteristics with those of general transformers and low-noise high-efficiency transformers.103rd Examination (2014)
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11. Explain the Y-Zig Zag connection of transformers.106th Examination (2015)
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1. 배전용 변압기(22.9kV-LV)로서 고조파 감쇄기능을 갖는 하이브리드 변압기의 권선법을 설명하고, 하이브리드 변압기와 K-factor 변압기의 특성을 비교하여 설명하시오.2018년 제116회