Rogowski Coil With Ferromagnetic Powder Core

IF 1.1 4区物理与天体物理 Q4 ENGINEERING, ELECTRICAL & ELECTRONIC

IEEE Magnetics Letters Pub Date : 2022-01-14 DOI:10.1109/LMAG.2022.3143470

Václav Grim;Pavel Ripka

引用次数: 0

Abstract

We have used nanocrystalline powder to build a core for Rogowski coils suitable for application in energy meters. The sensor linearity error is 0.32% of full scale (FS) of its 20 A range, which is acceptable for this application. The main advantages of the new core are 15-fold increase in sensitivity, which results in lower noise, and high rejection of direct current. It operates at up to 1000 A dc with 20% change in sensitivity. Resulting accuracy of power measurement using a single-chip digital power meter is 0.22% FS.

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铁磁性粉末磁芯Rogowski线圈

我们已经使用纳米晶体粉末为Rogowski线圈构建了适用于能量计的磁芯。传感器线性误差为其20A范围的满刻度（FS）的0.32%，这对于该应用是可接受的。新磁芯的主要优点是灵敏度提高了15倍，从而降低了噪声，并具有很高的直流抑制率。它在高达1000 A dc的电压下工作，灵敏度变化20%。使用单片数字功率计进行功率测量的结果精度为0.22%FS。

本文章由计算机程序翻译，如有差异，请以英文原文为准。

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来源期刊

IEEE Magnetics Letters PHYSICS, APPLIED-

CiteScore

2.40

自引率

0.00%

发文量

期刊介绍： IEEE Magnetics Letters is a peer-reviewed, archival journal covering the physics and engineering of magnetism, magnetic materials, applied magnetics, design and application of magnetic devices, bio-magnetics, magneto-electronics, and spin electronics. IEEE Magnetics Letters publishes short, scholarly articles of substantial current interest. IEEE Magnetics Letters is a hybrid Open Access (OA) journal. For a fee, authors have the option making their articles freely available to all, including non-subscribers. OA articles are identified as Open Access.