Woonyoung is a leading company that specializes in manufacturing and developing various Electronics Controls. Our products are Electric Power System - Transformer, High/Low Voltage Reactor, Noise cut transformer, Automation Solution - Solid State Relay (SSR), Thyristor (TPR), Noise Filter, Switching Mode Power Supply (SMPS), Harmonic Filter Solution - Active Harmonic Filter (AHF), Passive Harmonic Filter (PHF), Micro Surge Filter (MSF), Sine Wave Filter (SWF), Zero Sequence Harmonic Filter (ZHF), and Protection & Measuring - High/Low voltage CT, VT, MOF, Protective Relay, Earth Leakage Detector (ELD), Ground Fault Relay (GFR), Zero Phase Current Transformer (ZCT), Woonyoung has the clear vision for Power Electronics Industry in 21st century. In order to being a one of the major companies in global market, we are firmly building the infrastructure such as human, technology, and future-oriented corporate culture.Representing young industrial spirit, we will move forward as a superb company in 21st century's Power Electronics Industry. We will also actively cope with the rapidly changing world market through constant challenge, product internationalization, innovative R&D, and best technology.