Design CConcept Hyosung’s transformers are designed and manufactured through verification from the design stage using design program, electromagnetic field analysis program, and structural analysis program. Dielectric Strength Hyosung transformers offer superior dielectric strength to withstand impulse voltage. Our advanced technology design principles ensure low capacitance between winding and the ground for proper coordination of insulating material mitigating any potential creepage issues. Thermal Capability The coils that form the electric circuit inside the transformer as well as the core material which creates the magnetic circuit must dissipate heat effectively. This heat must be released through the insulating oil which in turn radiates to the air through the cooler or radiator system. This cooling effect is vital as it is directly linked to insulation life and the total capacity of the transformer. Hyosung’s transformers emphasize improving cooling performance as well as regulating the temperature of the hottest spots by using an advanced cooling system. Mechanical Strength Hyosung transformers exhibit excellent mechanical strength because the design is able to distribute mechanical force evenly in event of a short circuit condition. Consideration is also given to engineering for overseas and rail transportation requirements required for delivery to the customer’s site.
I 06 07 Power Transformers Design and Analysis Hyosung transformers distinctly stand out from the competition with world-class engineering and unparalleled quality. Our engineering teams use highly efficient, reliable and accurate software programs based on state-of-art techniques for preparing most optimized design to deliver the low cost and high quality products. 2-D electric field analysis for optimization of insulation structure, 3-D magnetic field analysis for determination of partial overheating and tank shield optimization and stress analysis for determination of seismic withstand and short circuit capability are few to name. Our 3-D CAD engineering system allows us to review the final product before assembly preventing errors and minimizing defects at manufacturing stage. Our dedicated R&D cell continue to research and develop innovative, efficient and cost effective designs and working towards standardization of the design parameters to reduce the lead cycle time. Transient Analysis Magnetic Field Analysis The program uses advanced technique for calculation of Electromagnetic calculations are performed to describe the the various parameters like stresses on each turns, coils stray field in a transformer and to calculate transformer and windings. The windings are divided into several parameters such as impedance, losses and short-circuit segments and the actual test conditions are simulated by forces can be made in the initial design stage. proper input. The program gives the values of resistance, inductance and capacitance which are further used to calculate the electrostatic stresses along the winding and determine adequacy of the insulation structure and requirement of intershielding and/or interleaving. Structural Analysis Structural analysis is performed to ensure safe operation of the transformer and a robust construction to withstand Thermal Analysis static and dynamic forces. Computational Fluid Dynamics (CFD) is used to understand the thermal behavior of the transformer. CFD analysis enables the designer to accurately calculate the fluid velocity, oil and winding temperature in all parts of the transformer. Data Management Hyosung maintains database of its engineering schematics. By using our PDM (product data management) system, the design lead cycle time can be reduced by fetching data from existing high quality design units for reference at design stage. Our commitment to provide the transformers with best quality at most competitive price inspires us to strive for innovative research and development which in turn brings perfection to our products making us a reputed name in transformer industry.