Tape-wound Rogowski coil for measuring large-magnitude pulsed currents

Research output: Contribution to journalArticle

3 Citations (Scopus)

Abstract

This paper presents design, calibration and testing of a new tape-wound Rogowski coil for measuring large-magnitude pulsed currents. The performance of the coil is tested by different impulse current waveforms up to 9 kA peak value. The coil is calibrated versus two commercial impulse-current transformers with different impulse current waveforms. The coil design is optimized to work in the differentiating mode and achieve useful bandwidth and sensitivity up to 1 MHz and 102 mV/kA, respectively. Waveform distortion of the coil output voltage is examined by using the lumped-element model to optimize the parameters of the external passive integrator. It is desired to optimize the integrator parameters and achieve the desired bandwidth without having droop and backswing. To do so, the coil frequency response is investigated by making fast Fourier transform (FFT) of the impulse current waveforms and PSPICE simulation of the lumped parameter equivalent circuit of Rogowski coil and the external integrator. Finally, it is found that the PSPICE calculated sensitivity for the optimized integrator parameters deviates from the corresponding measured one by a percentage relative error of–0.05%.

Original languageEnglish
Pages (from-to)250-257
Number of pages8
JournalInstruments and Experimental Techniques
Volume59
Issue number2
DOIs
Publication statusPublished - Mar 1 2016

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SPICE
Tapes
tapes
coils
Bandwidth
integrators
Electric instrument transformers
impulses
Equivalent circuits
Fast Fourier transforms
waveforms
Frequency response
Calibration
Testing
Electric potential
bandwidth
sensitivity
equivalent circuits
transformers
frequency response

ASJC Scopus subject areas

  • Instrumentation

Cite this

Tape-wound Rogowski coil for measuring large-magnitude pulsed currents. / Metwally, I. A.

In: Instruments and Experimental Techniques, Vol. 59, No. 2, 01.03.2016, p. 250-257.

Research output: Contribution to journalArticle

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