Transformer / Reactor

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  1. [JAC004] Sound Pressure Analysis of a Reactor

    This Application Note shows an example of an evaluation of a reactor’s sound pressure when a part of a spacer has been removed.

  2. [JAC052] Inductance Analysis of a Sheet Coil Transformer

    This Application Note explains how to obtain the self-inductance and leakage inductance of a sheet coil transformer.

  3. [JAC061] Current Distribution Analysis of a Choke Coil

    This Application Note explains a case example that obtains the current distribution in a choke coil.

  4. [JAC099] Superimposed Direct Current Characteristics Analysis of a High Current Reactor

    This Application Note presents how to obtain a high-current reactor’s superimposed direct current characteristics when the gap length is varied.

  5. [JAC110] Loss Analysis of a Choke Coil

    This Application Note shows how to obtain the iron loss and copper loss in a choke coil.

  6. [JAC117] Iron Loss Analysis of a Transformer

    This Application Note presents how to obtain the iron loss and the ratio of hysteresis loss and joule loss within that iron loss for a three-phase transformer.

  7. [JAC132] Loss Analysis of a Three-phase Transformer

    This note presents how to obtain the iron and copper losses of a three-phase transformer.

  8. [JAC123] Thermal Analysis of a Choke Coil

    This Application Note shows the use of a thermal analysis to obtain the temperature distribution using the iron losses and copper losses in the choke coil as the heat source.

  9. [JAC078] Loss Analysis of a Sheet Coil Transformer

    This Application Note shows how to obtain the iron loss of a sheet coil transformer.

  10. [JAC105] Leakage Inductance Analysis of a Transformer

    This Application Note explains how to obtain self-inductance and leakage inductance for two types of secondary coiling in a transformer: uniform coiling and close coiling.

  11. [JAC158] Superimposed Direct Current Characteristic Analysis of a Reactor That Accounts for Minor Hysteresis Loops

    This Application Note presents the use of the frozen permeability condition to obtain the superimposed direct current characteristic that includes minor hysteresis loops of a high…

  12. [JAC081] AL-value Analysis of a Choke Coil

    This Application Note explains a case example that obtains the air gap versus AL characteristics of a choke coil.

  13. [JAC152] Electromagnetic Force Analysis of Short-circuited Power Transformer Coils

    This analysis uses different coil positions to evaluate the Lorentz force density and electromagnetic force produced in the coils during a short circuit in order to confirm the ef…

  14. [JAC146] Analysis of Stray Loss in a Transformer

    This Application Note explains how to obtain losses in a transformer tank and use them to evaluate the temperature distribution in each part.

  15. [JAC133] Thermal Analysis of a Three-phase Transformer

    This Application Note presents an example of how to confirm a temperature distribution using the iron and copper losses of a three-phase transformer as heat sources.

  16. [JAC097] Sound Pressure Analysis of a Transformer

    This example presents the use of a coupled magnetic field and structural analysis to obtain the sound pressure distribution accounting for the electromagnetic force of the core wh…

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