A Novel Method for Investigating the Frequency Dependent Behavior of Instrument Transformers

Yong Xin Feng; Zhao Li; Ya Qi Gao; Bing Ran Shao; Xue Wen Ding; Yi Zhou

doi:10.4028/www.scientific.net/AMM.494-495.1477

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HomeApplied Mechanics and MaterialsApplied Mechanics and Materials Vols. 494-495A Novel Method for Investigating the Frequency...

A Novel Method for Investigating the Frequency Dependent Behavior of Instrument Transformers

Abstract:

This paper describes the structure and the principle of the NI DAQ based measurement system used for investigating the frequency dependent behavior of instrument transformers in the high voltage system. A computer based NI DAQ card is utilized as the data acquisition system in the new measurement system. The software digital filter and the phase locked loop are implemented to obtain the magnitude and phase angle, respectively. With this measurement system, we investigated frequency responses of several voltage and current transformers at the converter station of the Germany railway.

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Periodical:

Applied Mechanics and Materials (Volumes 494-495)

Pages:

1477-1481

DOI:

https://doi.org/10.4028/www.scientific.net/AMM.494-495.1477

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Online since:

February 2014

Authors:

Yong Xin Feng, Zhao Li*, Ya Qi Gao, Bing Ran Shao, Xue Wen Ding, Yi Zhou

Keywords:

Digital Filter, Frequency Dependent Behavior, Instrument Transformer, Phase Lock Loop

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* - Corresponding Author

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