Results 11 to 20 of about 7,517,528 (295)

Internal Current Return Path for Ground Leakage Current Mitigation in Current Source Inverters [PDF]

open access: yesIEEE Access, 2019
This paper analyzes in detail the effect of a simple solution for ground leakage current mitigation applicable to transformerless three-phase current source inverter (CSI).
Emilio Lorenzani   +5 more
doaj   +2 more sources

Modeling leakage current of ceramic insulators subject to high pollution levels for improving maintenance activities [PDF]

open access: yesDyna, 2018
This paper presents a useful model to determine the washing periods and to indicate the pollution levels of electrical insulators. The behavior of leakage current, which is one indicator of the presence of pollutants on the insulator surfaces, was ...
Rafael Castillo-Sierra   +3 more
doaj   +2 more sources

Adaptive Leakage Protection for Low-Voltage Distribution Systems Based on SSA-BP Neural Network

open access: yesApplied Sciences, 2023
The fluctuation of normal leakage current has a great influence on the fixed-threshold leakage protector. To address this issue, this paper proposes an adaptive leakage protection method based on the sparrow search algorithm (SSA)-backpropagation (BP ...
Zhenguo Liu, Hai Yu, Wei Jin
doaj   +1 more source

Dislocation-related leakage-current paths of 4H silicon carbide

open access: yesFrontiers in Materials, 2023
Improving the quality of 4H silicon carbide (4H-SiC) epitaxial layers to reduce the leakage current of 4H-SiC based high-power devices is a long-standing issue in the development of 4H-SiC homoepitaxy.
Wandong Gao   +13 more
doaj   +1 more source

Time dependent dielectric breakdown and stress induced leakage current characteristics of 8Å EOT HfO2 N-MOSFETS [PDF]

open access: yes, 2010
In this work we present the time dependent dielectric breakdown (TDDB) characteristics of LaO capped HfO2 layers with an equivalent oxide thickness of 8Å. The layers show maximum operating voltages in excess of 1V. Such high reliability can be attributed
Ragnarsson, Lars-Ake   +8 more
core   +2 more sources

Intentionally Carbon-Doped AlGaN/GaN HEMTs:Necessity for Vertical Leakage Paths [PDF]

open access: yes, 2014
Dynamic ON-resistance (RON) in heavily carbon doped AlGaN/GaN high electron mobility transistors is shown to be associated with the semi-insulating carbon-doped buffer region.
Šonský, Jan   +6 more
core   +1 more source

Effect of the Combined Pollution of Brick Industry and Sandstorms on the Performance of High Voltage Insulators and Flashover Phenomenon

open access: yesTikrit Journal of Engineering Sciences, 2018
Recent repeated flashovers and power outage incidents in an (400/132) kV substation, located in the Ad Diwaniyah Province, have called for extensive investigations to evaluate the effect of subsequent deposition of sandstorm and free carbon particles ...
Israa Amer Dahham
doaj   +2 more sources

Frequency Dependent Model of Leakage Inductance for Magnetic Components [PDF]

open access: yes, 2012
Theoretical methods for the calculation of winding losses with respect to frequency have been well documented, but the variation in leakage inductance of magnetic components due to frequency has been less well addressed. In this paper Dowell’s well-known
Wilcock, Reuben   +5 more
core   +1 more source

Electrical Line Fault Detection and Line Cut-Off Equipment and Control

open access: yesJournal of Control Science and Engineering, 2022
In order to locate the leakage fault location of low-voltage electrical lines, cut off the power supply of electrical lines, and ensure the safety and reliability of the power supply network, this paper proposes an electrical line leakage fault detection
Yakun Fu
doaj   +1 more source

Mapping Relation of Leakage Currents of Polluted Insulators and Discharge Arc Area

open access: yesFrontiers in Energy Research, 2021
A fundamental parameter of polluted insulator online monitoring is the leakage current, which has already been shown to be well-related to the pollution discharge of insulators.
Chunhua Fang   +7 more
doaj   +1 more source

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