Results 211 to 220 of about 311,227 (259)

PCB Rogowski coils benefit relay protection

IEEE Computer Applications in Power, 2002
Innovative Rogowski coils enable the design of advanced protection systems when used with new multifunction relays and fiberoptic communication. The protection systems have faster response times to faults and can easily adjust to load and/or power system configuration changes.
openaire   +1 more source

Rogowski Coil Sensors with Optical Output for Lightning Current Measurement in Aircraft Fuselage

International Conference on Embedded and Multimedia Computing
Rogowski coil sensor have been proven to be valuable for measuring transient currents. Some applications are focused on studying the current flow through metallic joints in airplane fuselages during lightning strikes.
M. Quílez, Miquel Navarro, Jordi Solé-Lloveras, Ferran Silva   +3 more
semanticscholar   +1 more source

Design of Weak Current Sensor Based on Rogowski Coil

Cybersecurity and Cyberforensics Conference
In order to expand the application scenarios of the Rogowski coil and extend its limitations in weak signal measurements, a comprehensive design approach for the Rogowski coil is integrated.
Yifeng Gao, Xiaojun Wang, Lening Wang
semanticscholar   +1 more source

PCB Rogowski Coil With DC Sensing for Double Pulse Test Applications

IEEE transactions on power electronics
Accurately measuring the switching current behavior of wide bandgap devices requires a current sensor with a wide bandwidth covering dc to high frequency ranges. However, traditional Rogowski coils (RCs) for current sensing either lack the dc measurement
Sadia Binte Sohid, Xingyue Tian, Niu Jia, Han Cui, Wen Zhang, F. Wang, Bernhard Holzinger   +6 more
semanticscholar   +1 more source

Studies of a slow-wave Rogowski coil

IEEE Transactions on Plasma Science, 1990
A Rogowski coil in a conducting shield can be considered as a slow-wave transmission line. By carefully constructing the slow-wave structure in such a way that the distributed capacitance becomes large (on the order of nF) and the coil inductance is at least several microhenries, it is possible to obtain a high-sensitivity ( equivalent to 1 V/A ...
K.-L. Wong, T.-R. Chen
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Improved performance Rogowski coils for power system

2003 IEEE PES Transmission and Distribution Conference and Exposition (IEEE Cat. No.03CH37495), 2004
For power system applications, Rogowski coil output voltage is sent to both relays and measuring equipments. The former requires adequate bandwidth and the latter needs adequate sensitivity. However, one could not arbitrarily increase the winding density to increase the sensitivity since the bandwidth is decreased.
null Guo Xiaohua, null Liao Jingsheng, null Zhu Mingjun, null Ye Miaoyuan   +3 more
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Study of Measuring Error of Rogowski Coil

2019 Photonics & Electromagnetics Research Symposium - Fall (PIERS - Fall), 2019
Electronic current transformer (ECT) is widely used in test and measuring. As a key part of ECT, Rogowski coil should be installed correctly to give a precise measurement. Thus, we give qualitative and quantitative analysis on some situation that may influence the measuring accuracy and use Maxwell to verify it.
S. M. Lu, W. W. Song, C. Huang
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A Calibrating Device for Rogowski Coil Development

Plasma Science and Technology, 2007
A calibrating device for the Rogowski coil is developed, which can be used to calibrate the Rogowski coil having a partial response time within tens of nanoseconds. Its key component is a step current generator, which can generate the output with a rise time of less than 2 ns and a duration of larger than 300 ns.
Lv Liang, Li Junhao, Huang Jianjun, Ji Shengchang, Li Yanming   +4 more
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Calibration of Rogowski coils at high currents

CPEM 2010, 2010
This paper describes the calibration of a Rogowski coil (RC) with an integrator assigned for current measurement in the range up to 25 kA at 50 Hz mains frequency. A current loop with 10 turns with a current of 2.5 kA is used for calibration. The magnetic field generated in such a way differs from the field of one turn placed in the centre and passed ...
K. Draxler, R. Styblikova
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Using Rogowski coils for transient current measurements

Engineering Science and Education Journal, 1993
In recent years the Rogowski-coil method of measuring electric current has developed from a ‘laboratory curiosity’ to a versatile measuring system with many applications throughout industry and in research. The technique possesses many features which offer an advantage over iron-cored current measuring devices and these are well illustrated by ...
D.A. Ward, J. La T. Exon
openaire   +1 more source