Results 31 to 40 of about 1,832,940 (315)

Three-Phase Motor Inverter and Current Sensing GaN Power IC

open access: yesSensors, 2023
A three-phase GaN-based motor inverter IC with three integrated phase current mirror sensors (sense-FETs or sense-HEMTs, 1200:1 ratio), a temperature sensor, and an amplifier is presented and experimentally operated.
Stefan Mönch   +6 more
doaj   +1 more source

Electrical Equivalent Circuit of Multi-Tips Pulsed Corona Discharge Reactor [PDF]

open access: yesMATEC Web of Conferences, 2021
In this work, an electrical model equivalent to the corona discharge reactor has been proposed in a multitips plan configuration, in dry air at atmospheric pressure.
Saber Karim   +3 more
doaj   +1 more source

A Detailed Testing Procedure of Numerical Differential Protection Relay for EHV Auto Transformer

open access: yesEnergies, 2021
In power systems, the programmable numerical differential relays are widely used for the protection of generators, bus bars, transformers, shunt reactors, and transmission lines.
Umer Ehsan   +8 more
doaj   +1 more source

Switching Techniques for Minimizing Current Measurement Noise in Integrated Single Shunt Power Conversion System With Common DC Link

open access: yesIEEE Access
This paper suggests a technique to reduce noise in DC current measurements within an integrated power conversion system, which includes a three-phase inverter and a full-bridge converter both utilizing single shunt resistors as current sensors. Typically,
Ju-An Kim, Yong-Gyu Cho, Hyeon-Gyu Choi
doaj   +1 more source

Traceable Technique to calibrate Clamp Meters in AC Current From 100 to 1500 A

open access: yes, 2012
A measurement technique to calibrate current clamp meters in ac current in the measurement range from 100 to 1500 A at 50 Hz has been developed at the National Institute of Metrological Research (INRIM) in addition to the primary reference ...
GALLIANA, FLAVIO, CAPRA, PIER PAOLO
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

Research on Small Square PCB Rogowski Coil Measuring Transient Current in the Power Electronics Devices

open access: yesSensors, 2019
With the development of China’s electric power, power electronics devices such as insulated-gate bipolar transistors (IGBTs) have been widely used in the field of high voltages and large currents.
Chaoqun Jiao   +4 more
doaj   +1 more source

Current measurements within the electrospray emitter [PDF]

open access: yesJournal of the American Society for Mass Spectrometry, 2007
A movable disc-like wire probe electrode placed inside the electrospray (ES) capillary was used to measure currents flowing within the ES device for the first time. Currents were measured between the wire probe and the ES capillary. Current maps revealing measured current versus wire probe position were generated for a variety of solution conditions in
Pozniak, Boguslaw P., Cole, Richard B.
openaire   +2 more sources

Novel Earth Fault Protection Algorithm Based on MV Cable Screen Zero Sequence Current Filter

open access: yesEnergies, 2019
This paper presents novel zero sequence current filter and earth fault protection relay, which utilize cable screens earthing current in protection algorithm.
Krzysztof Lowczowski   +4 more
doaj   +1 more source

FEM Analysis and Sensor-Based Measurement Scheme of Current Distribution for Grounding Electrode

open access: yesApplied Sciences, 2020
The current distribution of the grounding electrode in a high-voltage direct current (HVDC) transmission system affects the state of power equipment in its vicinity, which depends on the soil resistivity and shape of the grounding electrode.
Li Zhu   +5 more
doaj   +1 more source

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