Results 21 to 30 of about 340,590 (231)

Discriminating Between Capacitor Bank Faults and External Faults for an Unbalanced Current Protection Relay Using DWT

open access: yesIEEE Access, 2020
Capacitor faults are a common issue in modern-day power systems. Such systems employ a traditional mechanism that solely relies on unbalanced relays as an indicator of faults in capacitor banks; however, in the case of a relay trip, operators may find it
Praikanok Lertwanitrot   +1 more
doaj   +1 more source

Analyzing the Characteristics of Faults in a Transmission Line and High Voltage Capacitor Banks in a 115-kV-Power System Using Discrete Wavelet Transform

open access: yesIEEE Access, 2022
The protection of conventional high voltage capacitor banks relies on an unbalance relay. However, investigating the faults requires time and human resources.
Pathomthat Chiradeja   +1 more
doaj   +1 more source

Distribution Transformer Secondary Bushing Temperature Detection Device using Feed Forward Neural Network

open access: yesJurnal Elkomika, 2023
ABSTRAK Transformator distribusi mengubah tegangan listrik tinggi menjadi rendah. Pada sekunder transformator, tegangan dan arus listrik cukup besar sehingga terjadi disipasi panas berlebihan karena timbulnya tahanan listrik pada titik koneksi sekunder ...
GALIH FEBRYANTA ASWA YUDHISTIRA   +2 more
doaj   +1 more source

Experimental investigations using quadratic‐tripping characteristics based on alienation/coherence coefficients of voltage and current signals for synchronous generators protection

open access: yesIET Generation, Transmission & Distribution, 2021
A protection scheme is proposed using alienation method derived from coherence model which is a backup protection method for the differential overcurrent protection of synchronous generators.
Ragab A. Mahmoud, Ehab S. Elwakil
doaj   +1 more source

Improve the Three-Phase Unbalance Rate of Railway System Under 2% By Three Kinds of Special Transformer Wiring

open access: yes, 2021
Because imbalanced power will cause the loss of the propulsion motor of the railway vehicle, and the increase in temperature will shorten the service life of the electric vehicle.
Chien-Hsu Chen, Chin E. Lin
semanticscholar   +1 more source

On channel estimation and optimal training design for amplify and forward relay networks [PDF]

open access: yes, 2007
10.1109/GLOCOM.2007.763GLOBECOM - IEEE Global Telecommunications Conference4015 ...
Cui, Tao   +2 more
core   +2 more sources

An algorithm for optimal sizing of the capacitor banks under non-sinusoidal and unbalanced conditions [PDF]

open access: yes, 2014
In non-sinusoidal and unbalanced systems, optimal sizing of the capacitor banks is not a straightforward task as in sinusoidal and balanced systems. In this paper, by means of qualitative and quantitative analysis, it is interpreted that the classical ...
Abdel Aleem, SHE   +3 more
core   +1 more source

Impact of Pointing Errors on the Performance of Mixed RF/FSO Dual-Hop Transmission Systems [PDF]

open access: yes, 2013
In this work, the performance analysis of a dual-hop relay transmission system composed of asymmetric radio-frequency (RF)/free-space optical (FSO) links with pointing errors is presented.
Alouini, Mohamed-Slim   +2 more
core   +2 more sources

Improved Transformer Differential Protection by Adaptive Pickup Setting during Momentary Over-Fluxing Condition

open access: yesAdvances in Electrical and Electronic Engineering, 2020
The differential relaying scheme is universally adopted as the main protection for power transformer. In certain situations, like temporary over-fluxing, this differential protection may malfunction.
Maulik Raichura   +2 more
doaj   +1 more source

Dynamic Analyses of the Hydro-Turbine Generator Shafting System Considering the Hydraulic Instability

open access: yesEnergies, 2018
Hydraulic instability is a complex factor causing the vibration of hydro-turbine generator shafting system (HGSS), and the mechanism is the uneven distribution of flow along the circumference.
Keyun Zhuang   +4 more
doaj   +1 more source

Home - About - Disclaimer - Privacy