Results 111 to 120 of about 311,227 (259)

Calibration of Rogowski Coils at High Pulsed Currents

open access: yesNCSL International Workshop & Symposium Conference Proceedings 2013, 2013
Calibration of Rogowski Coils at High Pulsed Currents. The many applications of Rogowski coils include their use as current sensors in AC resistance welding. Weld quality depends on monitoring/controlling the welding currents. The accuracy of these current sensors matters, and so does the accuracy of their calibration.
openaire   +2 more sources

A 6.5 kV/100A Low‐Inductance SiC MOSFET Power Module With Integrated Current Monitoring for Parallel Chips

open access: yesIET Power Electronics
To monitor the operating status and fault behaviour of power modules, this paper proposes a 6.5 kV/100 A silicon carbide (SiC) MOSFET power module capable of monitoring the drain currents of parallel‐connected chips.
Yihao Zhang   +8 more
doaj   +1 more source

Development of ultra-small current sensor for IGBT modules: Proposal of high accuracy sensor structure and Construction of original design method [PDF]

open access: yes, 2015
Ultra-small sensor applied print-circuit-board (PCB) technology has been developed. The current sensor has been realized high accuracy and smaller and thinner by principle of Rogowski coil and application of PCB technology.
中島 健太   +3 more
core   +1 more source

A Novel Self-Powered Smart Current Sensor for Power Equipment

open access: yesElektronika ir Elektrotechnika, 2019
Current measurement is one of the most important work in online monitoring of the electric system. Self-powered and intelligence are key areas of the current measuring sensor.
Jie Ren   +6 more
doaj   +1 more source

Methods of single impulse detection [PDF]

open access: yes, 2008
Tato práce se zabývá metodami měření impulsních veličin elektromagnetického pole. Byla zaměřena na metodu, která je založena na optických jevech. Jako jsou Faradayův, Pockelsův a magnetooptický Keerův jev.
Juřík, Vladimír
core  

Power frequency magnetic field interference suppression method for online frequency response analysis of power transformers

open access: yesThe Journal of Engineering
Frequency response analysis is widely used for the offline diagnosis of winding deformations in power transformers. To apply this approach to a working transformer, the magnitude of the response current needs to be measured by using Rogowski coil sensors
Yangchun Cheng   +4 more
doaj   +1 more source

Diagnostic systems for the nuclear fusion and plasma research in the PF-24 plasma focus laboratory at the IFJ PAN

open access: yesNukleonika, 2016
This paper presents a set of diagnostics dedicated to PF-24 - new medium size - plasma focus (PF) device built and operated at the Institute of Nuclear Physics Polish Academy of Sciences (IFJ PAN).
Marciniak Łukasz   +4 more
doaj   +1 more source

Optimized Design in Current, Temperature and Stress Distributions for Paralleled Chips in Press-Pack IGBT Modules

open access: yesCSEE Journal of Power and Energy Systems
In a press-pack insulated gate bipolar transistor (IGBT), a compact packaging structure forms a strong electromagnetic coupling, thermal coupling, and stress coupling, threatening current sharing, temperature sharing, and stress sharing of paralleled ...
Lubin Han, Lin Liang, Yong Kang
doaj   +1 more source

Study of magnetic annular plasma accelerator Summary report, 15 Apr. 1964 - 14 Jan. 1966 [PDF]

open access: yes
Magnetic annular arc for achieving high propulsive ...
Patrick, R. M., Schneiderman, A. M.
core   +1 more source

Rogowski Coils with Nickel Alloy Flexible Core and Peroformance Comparisons

open access: yesDüzce Üniversitesi Bilim ve Teknoloji Dergisi
The instantaneous currents must be measured precisely and accurately in order to monitor electrical circuits under different operating conditions. Rogowski Coils (RC) can be easily connected even in narrow spaces where the measuring device cannot enter ...
Emin Yıldırız, Gizem Merve Aydin
doaj   +1 more source

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