Development of a shunt lightning current measuring system using a Rogowski coil

Kawabata, Tomonori; Yanagawa, Shunichi; Takahashi, Hiroaki; Yamamoto, Kazuo

doi:10.1016/j.epsr.2014.07.015

Cited by 14 publications

(6 citation statements)

References 2 publications

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“…The Rogowski coil is significantly less expensive, costing several hundred dollars, but is still relatively expensive compared to an SPD. Typical single-phase and three-phase Class II I n 20-kA SPDs cost less than one hundred dollars [11][12][13][14][15][16][17][18]. For this reason, SPDs are rarely used with devices that can estimate lifetime.…”

Section: Introductionmentioning

confidence: 99%

A Low-Cost Surge Current Detection Sensor with Predictive Lifetime Display Function for Maintenance of Surge Protective Devices

Lee

2020

Sensors

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In this study, a low-cost surge current detection sensor (SCDS) that can measure high current surges using a low-current toroidal coil is proposed for maintenance of a surge protective device (SPD). The proposed SCDS is designed to display the predicted lifetime of the SPD based on the magnitude of surge current and number of surges. In addition, a method for measuring high surge current using a toroidal coil that can usually measure only low current is proposed. A lightning strike counter consists of a microcontroller with a low-power liquid crystal display (LCD) driver, 3 VDC lithium battery, and signal conditioning circuit that converts amplitude information of the surge current into duration information of a negative pulse to facilitate processing in the microcontroller. In this paper, we propose a software algorithm that can calculate the remaining lifetime of SPD based on the amplitude and number of surge currents. There is also an option to select the capacity of the surge protective device and the number of phase lines, allowing it to assess the predicted lifetime for various types of Class II SPDs. The proposed SCDS is measured as 7.2 μA from the battery power consumption test, and the service life is calculated to be 11.1 years. It meets the International Standard IEC62561-6 test conditions of the lightning strike counter and is expected to be useful in the maintenance of SPDs and lightning protection systems.

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Section: Introductionmentioning

confidence: 99%

A Low-Cost Surge Current Detection Sensor with Predictive Lifetime Display Function for Maintenance of Surge Protective Devices

Lee

2020

Sensors

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“…In practice, transient pulsed magnetic field measurement exists in many fields, such as lightning current in power systems [16,17] and aircrafts [18,19], crack detection with pulsed magnetic flux leakage techniques [20,21], and transient electromagnetic measurement in transformer substations [22]. However, to date, most of the reported theoretical and experimental studies carried out on ME sensors have been investigated under the premise of static magnetic field and standard sine wave magnetic field excitation [1,2,3,4,5,6,7,8,9,10,11,12,13,14,15].…”

Section: Introductionmentioning

confidence: 99%

Nonlinear Magnetoelectric Response of Fe73.5Cu1Nb3Si13.5B9/Piezofiber Composite for a Pulsed Magnetic Field Sensor

Zhou

Yang³

et al. 2019

Materials

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In this paper, we report the nonlinear magnetoelectric response in a homogenous magnetostrictive/piezoelectric laminate material. The proposed magnetoelectric stack Fe73.5Cu1Nb3Si13.5B9/piezofiber is made up of high-permeability magnetostrictive Fe73.5Cu1Nb3Si13.5B9 foils and a piezoelectric Pb(Zr, Ti)O3 fiber composite. The time dependence of magnetoelectric interactions in the Fe73.5Cu1Nb3Si13.5B9/piezofiber structure driven by pulsed magnetic field was investigated in detail. The experimental results show that the magnetoelectric effect is strongly dependent on the external bias magnetic and pulsed magnetic field parameters. To detect the amplitude of a pulsed magnetic field, the output sensitivity reaches 17 mV/Oe, which is excited by a 100 μs width field. In addition, to measure the pulsed width, the output sensitivity reaches 5.4 mV/μs in the range of 0–300 μs. The results show that the proposed Fe73.5Cu1Nb3Si13.5B9/piezofiber sensor is ideally suited for pulsed magnetic field measurement.

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“…Current transducers based on the Rogowski coil are often more than 10 cm in size, and their operating bandwidths have generally been limited to about dozens of megahertz [7]. There is, therefore, an unfulfilled demand for the broadening of the Rogowski coil's operating bandwidth to the levels of hundreds of gigahertz (GHz) or terahertz (THz) and promotion of its application in integrated circuit, micro-electro-mechanical and other micro-functional systems [8][9][10]. To meet such a demand, new fabrication technologies that can miniaturize these complex three-dimensional (3D) coils to the micro-scale have become necessary.…”

Section: Introductionmentioning

confidence: 99%

A miniaturized Rogowski current transducer with wide bandwidth and fast response

Bian

Shan

Liu

et al. 2016

J. Micromech. Microeng.

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The miniaturization of the 3D Rogowski current transducer down to the micro-scale is essential for device integration and expansion of its application scope, particularly for 'lab-on-a-chip' systems. However, fabrication of 3D miniaturized Rogowski coils remains challenging as most relative methods still rely on the 2D micromachining process. In this paper, a miniaturized Rogowski coil current transducer was fabricated using an improved femtosecond laser wet etching technology and a metal microsolidification process, in which a metal alloy with a relatively high melting point was used and a robust but simple packaging structure based on a conical electrode was developed. The results show that the miniaturized Rogowski coil current transducer reveals a response time of less than 1 ns, high sensitivity and good detection capability for high-frequency electrical signals. The miniaturized Rogowski coil can easily be integrated into functional microsystems and will be widely applicable for high-frequency electric signal detection and circuit protection.

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Development of a shunt lightning current measuring system using a Rogowski coil

Cited by 14 publications

References 2 publications

A Low-Cost Surge Current Detection Sensor with Predictive Lifetime Display Function for Maintenance of Surge Protective Devices

A Low-Cost Surge Current Detection Sensor with Predictive Lifetime Display Function for Maintenance of Surge Protective Devices

Nonlinear Magnetoelectric Response of Fe73.5Cu1Nb3Si13.5B9/Piezofiber Composite for a Pulsed Magnetic Field Sensor

A miniaturized Rogowski current transducer with wide bandwidth and fast response

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