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Design of a Hall Effect Current Microsensor for Power Networks

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3 Author(s)
Yuan-Pin Tsai ; Dept. of Electr. Eng., Nat. Taiwan Univ. of Sci. & Technol., Taipei, Taiwan ; Kun-Long Chen ; Nanming Chen

Current transformers (CTs) are used to measure line currents in a power network for indicative and protective purposes. However, due to magnetic hysteresis in the cores, traditional CTs may saturate when they detect large fault currents. Thus, a more efficient and accurate device is required. This paper aims at designing a more economical device, a microsensor to measure power network currents. The characteristics of this new design are measured and discussed. The new component will not be saturated for fault currents as high as 40 kA and can be used directly with an intelligent protective system or a digital meter for smart metering of electric power networks if it is designed with an integrated circuit (IC) chip.

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Smart Grid, IEEE Transactions on  (Volume:2 ,  Issue: 3 )