Results 21 to 30 of about 19,714,201 (367)

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

Energies, 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, Muhammad Jawad, Umar Javed, Khurram Shabih Zaidi, Ateeq Ur Rehman, Anton Rassõlkin, Maha M. Althobaiti, Habib Hamam, Muhammad Shafiq   +8 more
doaj   +1 more source

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

Sensors, 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

Current-Distribution Measurement in Polymer Electrolyte Water Electrolysis Equipment and Polymer Electrolyte Fuel Cell Using NMR Sensor

Journal of Thermal Science and Technology, 2009
In a polymer electrolyte fuel cell (PEFC), the current density through the polymer electrolyte membrane (PEM) is distributed along the electrode on the membrane electrode assembly (MEA).
Yasuo YOKOUCHI, Kuniyasu OGAWA, Tomoyuki HAISHI, Kohei ITO   +3 more
doaj   +1 more source

Magnetically-coupled Current Sensor Using An Integrated Coil And A Cmos Split-drain Transistor

Eletrônica de Potência, 2006
An integrated current sensing circuit intended for Smart-Power and embedded applications featuring galvanic isolation is implemented. It is based on magnetic detection using the CMOS compatible Split- Drain transistor (MAGFET) that provides a very ...
Fernando C. Castaldo, Carlos A. dos Reis Filho   +1 more
doaj   +1 more source

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

Applied 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, Hui Jiang, Fan Yang, Hanwu Luo, Wenzhen Li, Jianjun Han   +5 more
doaj   +1 more source

Low-Impact Current-Based Distributed Monitoring System for Medium Voltage Networks

Energies, 2021
Distribution networks are currently subject to a huge revolution in terms of assets being installed. In particular, the massive spread of renewable energy sources has drastically changed the way of approaching the grid.
Alessandro Mingotti, Lorenzo Peretto, Roberto Tinarelli   +2 more
doaj   +1 more source

Broken Bar Fault Detection in IM Operating Under No-Load Condition

Advances in Electrical and Computer Engineering, 2016
This paper presents a novel method for broken rotor bar detection in a squirrel-cage induction motor (IM). The proposed method applies a single-phase AC voltage as a test signal on motor terminals, resulting in a stator backward-rotating magnetic field.
RELJIC, D., JERKAN, D., MARCETIC, D., OROS, D.   +3 more
doaj   +1 more source

Bimetallic ammeter: a novel method of current measurement

Emergent Scientist, 2020
An electric current flowing through a bimetallic coil heats it up, and due to thermal expansion, the coil either unwinds or winds depending on the direction of net heat transfer and the specific heat capacities of the metals used.
Uy Robert Frederik, Miao Qiaozi, Yuan Chenghao   +2 more
doaj   +1 more source

A Simple Method for Compensating Harmonic Distortion in Current Transformers: Experimental Validation

Sensors, 2021
Conventional current transformers (CTs) suffer from nonlinearities due to their ferromagnetic cores. On one hand, it is well-known that severe core saturation may occur because of large overcurrents or unidirectional transient components: this may ...
Christian Laurano, Sergio Toscani, Michele Zanoni   +2 more
doaj   +1 more source

Measurement of the antineutrino neutral-current elastic differential cross section [PDF]

, 2013
arXiv:1309.7257v1 [hep ...
Aguilar-Arevalo, AA, Brown, BC, Bugel, L, Cheng, G, Church, ED, Collaboration, M, Conrad, JM, Dharmapalan, R, Djurcic, Z, Finley, DA, Ford, R, Garcia, FG, Garvey, GT, Grange, J, Huelsnitz, W, Ignarra, C, Imlay, R, Johnson, RA, Karagiorgi, G, Katori, T, Kobilarcik, T, Louis, WC, Mariani, C, Marsh, W, Mills, GB, Mirabal, J, Moore, CD, Mousseau, J, Nienaber, P, Osmanov, B, Pavlovic, Z, Perevalov, D, Polly, CC, Ray, H, Roe, BP, Russell, AD, Shaevitz, MH, Spitz, J, Stancu, I, Tayloe, R, Van de Water, RG, Wascko, MO, White, DH, Wickremasinghe, DA, Zeller, GP, Zimmerman, ED   +45 more
core   +2 more sources