• The Journal of Korean Institute of Electromagnetic Engineering and Science
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• v.14 no.8
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• pp.796-802
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• 2003

In this paper, an improved EUT(Equipment Under Test) evaluation method using image monitor for power frequency magnetic field immunity test was proposed and development of an automated real time image monitoring program was described. The proposed power frequence magnetic field immunity test detects automatically the change between the affected and unaffected image of EUT under the influence of electromagnetic wave. The proposed method for real time decision supplements shortcomings of the currently used method which is subjective to tester´s decision by ensuring the repeatability of the test. The change detection of EUT image provides a possibility of the immunity decision for PC monitors. In addition, the method to draw quantitative value in EUT immunity decision is suggested in accordance with the international standards and domestic trends.

• Journal of the Korean Magnetics Society
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• v.5 no.5
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• pp.905-909
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• 1995

We constructed the large 3-axis square Helmholtz coil system for the power frequency magnetic field immunity test. We measured the coil factors and magnetic field homogeneities of the fabricated 3-axis square Helmholtz coil. The experimental results for the field homogeneities are in agreement with the theoretical data. From these results, we determined the effective areas for the immunity test. We also confirmed that the low current using the multi-turns coil can be applicable to the immunity test for the high field in short duration.

• The Proceeding of the Korean Institute of Electromagnetic Engineering and Science
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• v.5 no.4
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• pp.64-70
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• 1994

the magnetic field homogeneities of the induction coils of various sizes and shapes were investigated in order to prepare for the magnetic field immunity test under the power frequency, the pulse and the damed oscillatory fields recommended by the IEC. For this purpose, we analyzed the magnetic field homogeneities in the two induction coils with $1m\times1m$, and $1m\times2.6m$, , and the double square coils with 0.8m and 0.6m spaced. The testing volume within $\pm$3dB in the double square coil with 0.8m spaced in twice bigger than single square coil with 1m side in the z-direction.

• Journal of the Korean Institute of Gas
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• v.21 no.6
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• pp.23-29
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• 2017

Solar and wind energy among the renewable energy produce irregular power because resource is difficult to control. When connected to grid have unstable. However, when the fuel cell system is connected to grid more stable because regular frequency and output power based on controllable hydrogen energy. To using fuel cell system in the household, it is important that the safety performance of power conditioning system(PCS) and it is important that evaluation method of electromagnetic compatibility(EMC). In this study, we consider that introduce power-frequency magnetic field immunity test before analyzed that compare with the EMC of the international standards and KGS AB 934 PC53. Also, we conduct that actual assessment and study on available the quantitative analysis as using complementary indicator.