Results 41 to 50 of about 1,212 (202)

Desenvolvimento de um sistema de medição de corrente elétrica para aplicação em linhas de transmissão de alta tensão [PDF]

open access: yes, 2011
Dissertação (mestrado) - Universidade Federal de Santa Catarina, Centro Tecnológico, Programa de Pós-Graduação em Metrologia Científica e Industrial, Florianópolis, 2011As medições de corrente e de tensão, em sistemas elétricos de potência, são processos
Wendhausen, Moacir
core  

Low‐frequency performance of openable flexible double‐loop Rogowski coil

open access: yesIET Science, Measurement & Technology, 2021
Double‐loop Rogowski coils have become increasingly popular in the market because of their high sensitivity and flexible usage compared to their extended single‐loop coils. Due to the high number of turns (thousands) and its small turn diameter (
Xiaoyu Liu, Hui Huang, Chaoqun Jiao
doaj   +1 more source

Improving Plasma‐Catalytic Ammonia Synthesis Using a Coaxial Double‐Helix‐Electrode Reactor

open access: yesChemSusChem, Volume 19, Issue 7, 14 April 2026.
A symmetric double‐dielectric, double‐helix dielectric barrier discharge (DBD) reactor enables uniform volume discharge, enhanced energetic electrons, and strong plasma‐catalyst synergy, delivering high‐efficiency ammonia synthesis under mild, low‐carbon conditions.
Shijie Xian   +7 more
wiley   +1 more source

Measurement of pulse current during high voltage tests using Rogowski coil with non-inverting integrator

open access: yesВестник Самарского государственного технического университета. Серия: Технические науки
The work is devoted to the development and modelling of the system of pulse current measurement during high-voltage tests and experiments. The proposed measurement system is based on the application of Rogowski coil with non-inverting integrator.
Vladimir V. Kochetkov   +2 more
doaj   +1 more source

Modeling and Analyzing the Mutual Inductance of Rogowski Coils of Arbitrary Skeleton

open access: yesSensors, 2019
There are Rogowski coils of various shapes in the on-site measurement, and it is difficult to calculate the electrical quantities of Rogowski coils of curved skeleton and circular cross-section by simulation software.
Xiaoyu Liu, Hui Huang, Chaoqun Jiao
doaj   +1 more source

Hybrid Sensing of Internal and Surface Partial Discharges in Air-Insulated Medium Voltage Switchgear

open access: yesEnergies, 2020
Partial discharge (PD) measurements have proved their reliability for health monitoring of insulation systems in power system components including synchronous generators, power transformers, switchgear and cables etc.
Ghulam Amjad Hussain   +4 more
doaj   +1 more source

Dielectric Breakdown Characteristics of Biaxially Oriented Polypropylene Films: Surface Structures on Thickness Dependence

open access: yesHigh Voltage, Volume 11, Issue 2, Page 513-521, April 2026.
ABSTRACT Film capacitors, essential for energy storage in power systems, benefit from reduced film thickness to increase capacitance and lower costs. While the inverse power law traditionally links higher electric strength with thinner films, its validity diminishes below a critical thickness.
Chuansheng Zhang   +5 more
wiley   +1 more source

Proposed methodology for online frequency response analysis based on magnetic coupling to detect winding deformations in transformers

open access: yesHigh Voltage, 2019
Frequency response analysis is widely used as a method for the offline diagnosis of winding deformations in power transformers. To apply it to a working transformer, people need to determine how to inject the excitation signal and measure the response ...
Yangchun Cheng   +7 more
doaj   +1 more source

Recent Advances in Hybrid, Plug‐In, Battery, and Fuel Cell EVs: Control Schemes, Modes, Converter Topologies, and Pros and Cons

open access: yesIET Electrical Systems in Transportation, Volume 2026, Issue 1, 2026.
Direct current (DC)–DC converters are the backbone of electric vehicle (EV) power trains, enabling efficient and bidirectional energy flow between the battery, high‐voltage (HV) DC link, and auxiliary rails under tight isolation, gain, ripple, and electromagnetic interference (EMI) constraints.
Abhilash Sakhare   +3 more
wiley   +1 more source

Design of a Rectangular Pickup Coil Fabricated on a PCB Using WBG Power Semiconductor in Discrete Package

open access: yesApplied Sciences, 2021
Power semiconductors based on wide bandgap (WBG) devices are capable of fast switching and have low on-resistance. Accordingly, a fast sensor with a higher bandwidth is required for circuit inspection based on switch current measurements.
Ui-Jin Kim
doaj   +1 more source

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