Transformer / Reactor

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  1. Improvement of Convergence in 3D Magnetic Field Analysis of Large Power Transformer

    Yasuhisa Ito, MEIDENSHA CORPORATION

  2. Calculation of Iron Loss of Variable Inductor for Electric Power Control

    Yoichi Sekiba, Denryoku Computing Center, Ltd.

  3. [L-HU-08] Complex 3D Models to FEA Models Within Short Timeframes

    Amounts of processing required will increase proportionately to the number of parts. By applying parallel processing, mesher processing speed increases, and mesh generation time i…

  4. 151 – Insulation Evaluation Analysis of a Power Transformer

    In this example, how to obtain the electric field intensity distribution when a lightning strike or short circuit occurs and the assumed maximum voltage is applied to the winding.

  5. 254 – Vibration Analysis of a Large Oil-Filled Transformer

    In this example, evaluating vibration caused by electromagnetic excitation in a large transformer. Since large transformers are oil-cooled, in this example the oil, which is the f…

  6. [L-TR-44] Winding Vibration Analysis of a Power Transformer

    Winding vibration originating from a transformer is a vibration phenomenon that uses Lorentz force as the vibration force, which occurs when flux leakage from the winding works on…

  7. [W-TR-15] Loss Evaluation of a Transformer Shield Based on the Homogenization Method

    In this paper, each electromagnetic steel sheet of the shield is not modeled; by applying the homogenization method which replaces magnetically and electrically equivalent materia…

  8. [W-SE-72] Reduction of Time Steps by Using Time Periodic Explicit Error Correction Method

    In electrical equipment design, Computer Aided Engineering (CAE) software is used to make the best possible products within allowable timelines.

  9. [W-SE-53] Transition to Steady State in a Short Time

    In the following, it is shown that the steady state analysis results can be obtained with less number of time steps by using the TP-EEC method.

  10. [W-HU-71] Notes on Performance Evaluation and Hardware Selection of JMAG Parallel Solver

    This document can be thought of as pointers and precautions for hardware selection and software operation.

  11. Analysis of Winding Losses of Shunt Reactor using “Zooming Analysis”

    Yasuhisa Ito, MEIDENSHA CORPORATION

  12. 3D Magnetic Field Analysis of Large Power Transformer with Parallel Calculation Processing

    Hirokazu Hayashida, Fuji Electric Co.,Ltd.

  13. 235 – Reactor Core Stray Loss Analysis

    In this example, reactor core stray loss is described.

  14. 203 – No-Load Test Analysis of Power Transformer

    This example focuses on modeling in the analysis of no-load tests in JMAG and obtains the iron loss distribution, current, excitation conductance, and excitation susceptance that …

  15. 221 – Confirmation of the Influence in the Reduction of High-Frequency Resistance of a Magnetically Plated Wire Choke Coil

    In this example, high frequency resistance values are obtained from choke coil copper loss analysis results using JMAG’s layer coating mesh function, and the effectiveness of redu…

  16. 202 – Core Stray Loss Analysis of Power Transformer

    This document introduces runs analysis by modeling the short-circuit test that is conducted when evaluating stray loss and obtains stray loss distribution in the core close to the…

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