Results 91 to 100 of about 311,227 (259)

Application of Sensors and Digitalization Based on IEC 61850 in Medium Voltage Networks and Switchgears [PDF]

open access: yes, 2016
Vzduchem izolované vysokonapěťové rozváděče jsou nedílnou součástí energetického distribučního řetězce a to jak v průmyslovém, tak ve veřejném sektoru. Hlavní funkcí rozváděče je ochrana pracovního personálu, rozpojování/odpojování a spínání, izolování ...
Štefanka, Martin
core  

Electric Current Sensors: a Review [PDF]

open access: yes, 2010
The review makes a brief overview of traditional methods of measurement of electric current and shows in more detail relatively new types of current sensors.
Ripka P.
core   +1 more source

Current Sensor Based on Rogowski Coil.

open access: yesRE&PQJ
We have built several Rogowski coil current sensors for measuring currents in non sinusoidal systems. In this paper we present the sensor and his behavior. We have built a generator of pulses in order to test it and we compare the results between two types of coils (flexible and Printed Circuit board PCB designed) and the linearity for measuring ...
null F. J. Arcega, null J. A. Artero
openaire   +1 more source

Comparative studies of C4F7N‐based gas mixtures as the eco‐friendly alternative to SF6 for interrupting applications

open access: yesHigh Voltage, Volume 10, Issue 1, Page 228-242, February 2025.
Abstract To comprehensively evaluate the feasibility of using C4F7N‐based gas mixture as arc extinguishing medium, a comparative study is performed on the variations of the multi‐physical fields, gas flow environment and decomposition characteristics of the gas mixtures.
Wen Wang   +3 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

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

Cryogenic DC Circuit Breaker Based on High‐Power Press‐Pack IGBT

open access: yesIET Electric Power Applications, Volume 19, Issue 1, January/December 2025.
This paper presents the performance of cryogenically compatible 3.3 kV/1.5 kA PP‐IGBTs as the main circuit breaker in a hybrid circuit breaker. The 3.3 kV/1.5 kA press‐pack IGBT can interrupt currents exceeding 5.1 kA when immersed in a liquid nitrogen bath. PP‐IGBTs are promising candidates for high‐power circuit breakers in cryogenically cooled power
Zhongying Wang   +9 more
wiley   +1 more source

A cusp electron gun for millimeter wave gyrodevices [PDF]

open access: yes, 2010
The experimental results of a thermionic cusp electron gun, to drive millimeter and submillimeter wave harmonic gyrodevices, are reported in this paper.
A. D. R. Phelps   +13 more
core   +1 more source

Investigation Into the Axial Vibration Behaviour of Helical Windings With a Transposition Structure Under External Short‐Circuit Faults

open access: yesIET Electric Power Applications, Volume 19, Issue 1, January/December 2025.
The transposition structure could change the axial short‐circuit electromagnetic force distribution of the helical winding and then affect the axial vibration behaviour of the winding. This paper analyses the force distribution in windings with transpositions and calculates the resulting axial vibration using a mass‐spring‐damper model.
Yi Zhao   +6 more
wiley   +1 more source

Design and characterization of a research electrohydraulic lithotripter patterned after the Dornier HM3 [PDF]

open access: yes, 2000
An electrohydraulic lithotripter has been designed that mimics the behavior of the Dornier HM3 extracorporeal shock wave lithotripter. The key mechanical and electrical properties of a clinical HM3 were measured and a design implemented to replicate ...
Bailey, Michael R.   +6 more
core  

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