Transformer / Reactor
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[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.
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[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…
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[JAC221] Confirmation of the Influence from 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…
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[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.
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[JAC061] Current Distribution Analysis of a Choke Coil
This Application Note explains a case example that obtains the current distribution in a choke coil.
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[JAC060] Superimposed Direct Current Characteristic Analysis of a Reactor
This Application Note explains a case example that obtains the superimposed direct current characteristics of a high-frequency reactor when the gap width is changed.
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[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.
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[JAC078] Loss Analysis of a Sheet Coil Transformer
This Application Note shows how to obtain the iron loss of a sheet coil transformer.
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[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.
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[JAC254] 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…
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[JAC132] Loss Analysis of a Three-phase Transformer
This note presents how to obtain the iron and copper losses of a three-phase transformer.
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[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…
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[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.
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[JAC143] Inductance Analysis of an Air Core Coil
This analysis shows how to obtain an air core coil’s inductance through analysis and compare it with theoretical values.
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[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.
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[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…
