Results 81 to 90 of about 340,675 (258)

Design Modification of Rogowski Coil for Current Measurement in Low Frequency

open access: yesIranian Journal of Electrical and Electronic Engineering, 2010
The principle object of this paper is to offer a modified design of Rogowski coil based on its frequency response. The improvement of the integrator circuit for nullifying the phase difference between the waveforms of the measured-current and the ...
H. Heydari, M. Rezaee
doaj  

Theoretical and experimental study of AC loss in HTS single pancake coils

open access: yes, 2008
The electromagnetic properties of a pancake coil in AC regime as a function of the number of turns is studied theoretically and experimentally. Specifically, the AC loss, the coil critical current and the voltage signal are discussed.
Clem J R   +13 more
core   +1 more source

Time–frequency characteristics and influencing factors of the pressure wave caused by power–frequency arc inside a closed oil tank

open access: yesHigh Voltage, Volume 10, Issue 3, Page 699-709, June 2025.
Abstract The arc faults inside oil‐immersed power equipment can produce high‐amplitude pressure waves inside tanks, which might cause ignition and explosion accidents. This kind of failure is one of the most severe faults for power equipment and has attracted considerable attention in recent years.
Yunfei Jia   +4 more
wiley   +1 more source

A novel current‐source management integrated circuit applied to high‐voltage integrated gate commutated thyristor gate driver

open access: yesHigh Voltage, Volume 10, Issue 3, Page 533-545, June 2025.
Abstract This paper presents a fully customised integrated gate commutated thyristor (IGCT) gate driver monolithic integrated circuit (GDMIC), aiming to address the many shortcomings of traditional IGCT gate driver units composed of discrete components, such as the excessive number of components, low reliability, and complex development processes.
Shiping Chen   +6 more
wiley   +1 more source

Influencing of Current Sensors by External Magnetic Field [PDF]

open access: yes, 2017
Import 23/08/2017Tato bakalářská práce se zabývá různými způsoby měření proudů a praktickým testováním vybraných klešťových ampérmetrů na sestaveném modelu přípojnic.
Hurta, Jan
core  

Novel Insights Into Load Current Control Using Power MOSFET

open access: yesEngineering Reports, Volume 7, Issue 5, May 2025.
This study proposes a novel current control concept for DC brushed motors using a power MOSFET in saturation mode, enhancing control resolution and providing practical insights for beginners. It offers unique design methodologies and validates findings through simulations and experimental tests, making significant contributions to electric/electronic ...
Huy Hung Nguyen   +5 more
wiley   +1 more source

Application Analysis of AD8479 in the Acquisition Unit of Electronic Current Transformer

open access: yesMATEC Web of Conferences, 2018
Electronic current transformer acquisition unit was installed outdoors and near the circuit breaker. The poor environments, including high common mode voltage, electromagnetic interference and other factors were a serious of disadvantages impacts on the ...
Liu Xi   +3 more
doaj   +1 more source

High current and high power superconducting rectifiers [PDF]

open access: yes, 1981
Results on three experimental superconducting rectifiers are reported. Two of them are 1 kA low frequency flux pumps, one thermally and magnetically switched.
Britton, R.B.   +3 more
core   +2 more sources

The relationship between power of arc discharge in transformer oil and peak value of the shock wave

open access: yesHigh Voltage, Volume 10, Issue 1, Page 157-166, February 2025.
Abstract Since 2018, there have been seven incidents of explosions and fires in ultra‐high voltage transformers in China, which are caused by internal arc discharge in transformer oil. Various pressure measurement experiments have been conducted to explore the laws of discharge pressure. However, differences in experimental conditions, discharge energy,
Guangjin Zhang   +7 more
wiley   +1 more source

Application-specific Micro Rogowski Coil for Power Modules -Design Tool, Novel Coil Pattern and Demonstration- [PDF]

open access: yes, 2016
We developed a printed circuit board “Rogowski coil” to improve the reliability of power modules and packages. For the design, we used a new tool for sensitivity and adopted a fishbone coil pattern to realize design sensitivity.
Koga Masahiro   +3 more
core   +1 more source

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