Results 81 to 90 of about 311,227 (259)

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  

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

Repeated exercise stress impairs volitional but not magnetically evoked electromechanical delay of the knee flexors [PDF]

open access: yes, 2012
The effects of serial episodes of fatigue and recovery on volitional and magnetically evoked neuromuscular performance of the knee flexors were assessed in twenty female soccer players during: (i) an intervention comprising 4x35s maximal static exercise;
Bailey, A   +4 more
core   +1 more source

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

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  

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 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

Development of a New Inverter-Current Measurement System Integrated in a Power Module [PDF]

open access: yes, 2017
This paper proposes a new current measurement system for inverter control. The system consists of a Field-Program-Gate-Allay (FPGA), and tiny Rogowski-coils (PCB Rogowski-coil) made of a print-circuit-board.
一木 真生   +4 more
core   +1 more source

Research on influence of double energy absorptions on dynamic volt‐ampere characteristics of metal oxide varistors

open access: yesHigh Voltage, Volume 10, Issue 1, Page 78-87, February 2025.
Abstract Metal oxide varistors (MOVs) are extensively employed in DC circuit breakers (DCCBs) to suppress overvoltage, dissipate energy and build up voltage after interruption. Despite their widespread use, the performance of MOVs under short‐time, double energy absorption conditions is not well understood, posing a challenge to their application in ...
Chen Long   +5 more
wiley   +1 more source

Electrohydraulic effect of microsecond pulsed discharge in transformer oils

open access: yesHigh Voltage, Volume 10, Issue 1, Page 137-145, February 2025.
Abstract The physical process of microsecond pulsed discharge in transformer oil is the foundation for studying the initial mechanics of faults in ultra‐high voltage transformers. However, the microsecond‐scale electrohydraulic effect in transformer oil has not been investigated yet.
Hang Wang   +5 more
wiley   +1 more source

Home - About - Disclaimer - Privacy