A New Method of the Touch/Leakage Protection without Dead-Zone Considering the Phase Characteristics

Zhi Jian Yuan

doi:10.4028/www.scientific.net/AMR.1065-1069.3395

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HomeAdvanced Materials ResearchAdvanced Materials Research Vols. 1065-1069A New Method of the Touch/Leakage Protection...

A New Method of the Touch/Leakage Protection without Dead-Zone Considering the Phase Characteristics

Abstract:

After investigating the residual current protection and its major deficiencies, it is found out that the touch/Leakage current could be separated from the total residual current by the current separation technology , which is based on the phase relationship between normal residual current and touch/leakage current. A novel leakage current protection principle without protection dead-zone is proposed .The proposed method, which is put into practice on DSP , proves to be accurate and feasible in digital simulations. Compared to the existing techniques based on the residual current amplitude or its variation,the proposed method can eliminate protection dead-zone effectively and improve the reliability of protection devices drastically.

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Periodical:

Advanced Materials Research (Volumes 1065-1069)

Pages:

3395-3399

DOI:

https://doi.org/10.4028/www.scientific.net/AMR.1065-1069.3395

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Online since:

December 2014

Authors:

Zhi Jian Yuan*

Keywords:

Current Separation Technology, DSP, Leakage Current Protection, Protection Dead-Zone, Residual Current

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References

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