Accurate high-current DC current ratio measurements

Rietveld, G.; Beek, Jan van der; Houtzager, E.

doi:10.1109/cpem.2014.6898533

Cited by 4 publications

(3 citation statements)

References 4 publications

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“…where a = 6.145 3 10 215 , b =-3.122310 210 , and c = 6.741310 26 . Substituting equations (13) and (12) into equation 10, we obtain equation (14).…”

Section: Mathematical Modelmentioning

confidence: 99%

“…At the same time, DC current measurement is becoming more important. [6][7][8][9][10] Usually, DC current measurement methods generally include shunt resistance method, 10 DC transformer method, 11 DC comparator method, 12,13 Hall element method, 14 DC fluxgate sensor method, 15 circular magnetic field sensing method, 16 and optical fiber sensor method. [17][18][19][20] Magnetic fluid is a solid-liquid mixture system, in which the strong magnetic particles are mixed into the base carrier liquid, and then surfactant is added to disperse the magnetic particles in the base carrier liquid uniformly.…”

Section: Introductionmentioning

confidence: 99%

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Measurement of the DC current based on magnetic fluids with an orthogonal magnetic field

Zhang

Che

Wang

et al. 2020

Measurement and Control

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Measurement of DC current is critically important in a wide range of applications, such as in photovoltaic power generation and DC power transmission. In this paper, the DC current measuring method based on magnetic fluids with orthogonal magnetic fields is studied. Firstly, the induced voltage of measurement coil, which contains a series of harmonics and the amplitude of its fundamental component is 2.5 times larger than that of other components, is derived and analyzed. Then, influence factors of the induced voltage are systematically studied. As a result, with a DC component injection into the exciting current, the frequency of the induced voltage becomes a half of that without a DC component, and when the DC component reaches to or exceeds the amplitude of the AC component, the induced voltage nearly has no distortion. Finally, the input-output characteristic of the measurement method is examined, and the accuracy, measuring range, and sensitivity are discussed, indicating that the linearity of the foundamental component root mean square (RMS) value curve is better than the one of the voltage amplitude curve under the same DC current range, and the sensitivities of induced voltage amplitude and the fundamental component RMS value are 5.948 and 3.717 mΩ, respectively.

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“…where a = 6.145 3 10 215 , b =-3.122310 210 , and c = 6.741310 26 . Substituting equations (13) and (12) into equation 10, we obtain equation (14).…”

Section: Mathematical Modelmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

Measurement of the DC current based on magnetic fluids with an orthogonal magnetic field

Zhang

Che

Wang

et al. 2020

Measurement and Control

View full text Add to dashboard Cite

show abstract

“…Pada penelitian [8], dilakukan penelitian penggunaan metode step arus referensi untuk mengkalibrasi transformator arus DC tinggi, pengukuran arus DC dan pengukuran jangkauan arus DC. Selanjutnya, pada penelitian [9], dilakukan set up untuk mengkalibrasi rasio arus DC hingga 600A dengan menggunakan komparator dengan basis 100A. Hasil penelitian pada set up menunjukkan bahwa set up dapat melakukan kalibrasi dengan ketelitian 1/(5 x 10 6 ).…”

Section: Pendahuluanunclassified

Analisis Pengaruh Variasi Jangkauan Amperemeter Heles Cr 52 Pada Pengukuran Arus Listrik

Giyatno

2018

J. Migasian

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Program Studi Diploma III Teknologi Listrik merupakan salah satu institusi pendidikan vokasional yang menekankan pada penguasaan keterampilan untuk penyelesaian masalah operasi dan pemeliharaan sistem tenaga listrik. Salah satu keterampilan yang harus dimiliki oleh lulusannya adalah penguasaan karakteristik alat ukur sehingga dapat mendapatkan hasil pengukuran sebagai landasan valid pengambilan keputusan. Di sisi lain, terdapat keterbatasan dana pembelian alat. Oleh karena itu, praktikum dilaksanakan dengan alat dengan kualitas menengah ke bawah. Penelitian ini bertujuan untuk mengetahui pengaruh variasi jangkauan amperemeter tipe Heles CR 52 pada pengukuran arus listrik. Jenis amperemeter tersebut banyak digunakan di berbagai praktikum karena harganya yang relatif murah dan tersedia banyak di pasaran. Penelitian dilakukan dengan menggunakan amperemeter dengan jangkauan 0-1A, 0-2A, dan 0-5A untuk mengukur arus listrik yang mengalir pada 5 variasi beban dengan arus listrik maksimal 5A. Hasil penelitian menunjukkan bahwa hasil pengukuran akan semakin valid apabila digunakan amperemeter dengan jangkauan yang mendekati nilai teoritisnya. Pengukuran arus listrik dengan menggunakan jangkauan arus listrik yang relatif lebih jauh dari nilai teoritisnya akan menyebabkan hasil pengukuran kurang valid. Hal tersebut disebabkan oleh kurangnya sensitifitas amperemeter.

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Development and research of the current measurement circuit protection of a resonant test device

Хазиева

Mukhametshin

2023

2023 5th International Youth Conference on Radio Electronics, Electrical and Power Engineering (REEPE)

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Accurate high-current DC current ratio measurements

Cited by 4 publications

References 4 publications

Measurement of the DC current based on magnetic fluids with an orthogonal magnetic field

Measurement of the DC current based on magnetic fluids with an orthogonal magnetic field

Analisis Pengaruh Variasi Jangkauan Amperemeter Heles Cr 52 Pada Pengukuran Arus Listrik

Development and research of the current measurement circuit protection of a resonant test device

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