An Innovative Electronic Current Transformer Applied in High Voltage Systems

Zheng Qi Tian; Zhen Hua Li; Yue Tong

doi:10.4028/www.scientific.net/AMR.301-303.1471

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HomeAdvanced Materials ResearchAdvanced Materials Research Vols. 301-303An Innovative Electronic Current Transformer...

An Innovative Electronic Current Transformer Applied in High Voltage Systems

Abstract:

With the development of power system, Conventional current transformers (CTs) show a growing number of shortcomings. For better performances, Electronic Current Transformers (ECTs) are researched to replace CT. But high price, unsatisfactory life and unpredictable reliability hold back their industrializations. Employing the insulation structure of traditional inverted SF₆ transformers and the new sensing principle at the same time, using high-precision digital integration algorithm which has higher precision to extracting the power frequency signal, an innovative electronic current transformer is introduced in this paper. Test results show that the transformer has high accuracy, low price, good stability, wide frequency response and long life.

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Periodical:

Advanced Materials Research (Volumes 301-303)

Pages:

1471-1476

DOI:

https://doi.org/10.4028/www.scientific.net/AMR.301-303.1471

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Online since:

July 2011

Authors:

Zheng Qi Tian, Zhen Hua Li, Yue Tong

Keywords:

Digital Integration, ECT, Insulation Structure, Rogowski Coil

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