Analysis on Line Differential Protection Based on Transient Saturation Characteristics of TPY-Type Current Transformer

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Abstract:

Transient saturation characteristics of TPY-type current transformer have great impact on the right action of line differential protection. This paper proposes an analytical method of line differential protection under current transformer saturation by utilizing current transformer model and test methods. The true current value of primary side can be obtained by our proposed method and therefore it yields correct assessment of line operating status. This method has high reliability applying to practical engineering examples of differential protection.

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Periodical:

Advanced Materials Research (Volumes 1070-1072)

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671-677

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Online since:

December 2014

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© 2015 Trans Tech Publications Ltd. All Rights Reserved

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