Results 11 to 20 of about 337,693 (183)

Experimental performance verification of an intelligent detection and assessment scheme for disturbances and imbalances of three-phase synchronous machine output using coherence estimators [PDF]

open access: yesScientific Reports
In this article, power quality disturbances, such as voltage and current unbalances, series and shunt faults, are monitored in three-phase synchronous machines.
R. A. Mahmoud
doaj   +2 more sources

Spectral efficient optimisation for multihop relay networks adopting HARQ schemes

open access: yesElectronics Letters, 2017
A joint power and rate optimisation for multihop relay networks adopting different hybrid automatic repeat request (HARQ) schemes are investigated.
Junmei Han, Yong Xi, Jibo Wei
doaj   +2 more sources

Angular symmetrical components-based anti-islanding method for solar photovoltaic-integrated microgrid

open access: yesAutomatika, 2023
This article examines how an innovative Angular Symmetrical Components of Voltages be applied to islanding detection and voltage unbalance factor estimation at a photovoltaic inverter-based distribution unit. Positive and Negative Sequence Components are
V. Arivumani, Sujatha Balaraman
doaj   +1 more source

IoT Based Remote Monitoring, Control, and Protection of Irrigation Water ‎Pumping System ‎ [PDF]

open access: yesJournal of Operation and Automation in Power Engineering, 2023
The Internet of Things (IoT) is a multidisciplinary concept that includes a wide range of application domains and device capabilities. The IoT technology provides a platform that allows apparatus to be monitored by sensors, connected using a ...
M. K. Kirar
doaj   +1 more source

Behaviour analysis of H‐bridge high‐voltage capacitor banks fault on 230‐kV substation using discrete wavelet transform

open access: yesIET Generation, Transmission & Distribution, 2023
The protection of traditional high‐voltage capacitor banks relies on an unbalance relay which operates when an internal fuse is blown. However, the unbalance relay cannot indicate the cause of the fault.
Pathomthat Chiradeja   +3 more
doaj   +1 more source

Research on Interference Mechanism of 25 Hz Phase Sensitive Track Equipment from Unbalanced Current

open access: yesApplied Sciences, 2023
In a 25-Hz phase-sensitive track circuit, traction backflow is unevenly distributed in the two rails, resulting in interference caused by the 50 Hz unbalanced current, which leads to misoperation of relays and other equipment in the circuit.
Lei Wang   +6 more
doaj   +1 more source

Design of a fuzzy distance relay taking into consideration the impact of using a unified power flow controller

open access: yesEastern-European Journal of Enterprise Technologies, 2023
The compact design of a fuzzy distance relay, which includes its impact on using a unified power flow controller in a power system, has been adopted as the object of the study.
A. Alsammak, H. N. A. Al-Kaoaz
semanticscholar   +1 more source

Simulation of protection against unbalanced high-voltage asynchronous drive of recycle compressor in fuel hydrotreating unit

open access: yesГорные науки и технологии, 2023
In the oil and gas industry, continuous processes such as oil and gas refining play a great role and are sensitive to many external factors. Such processes require special procedures for stopping and restarting. In order to maintain a sustainable process,
V. V. Dmitrieva, A. B. Khammatov
doaj   +1 more source

Intelligent Over-vibration Protection Modeling & Simulation For Three Phase Induction Motor [PDF]

open access: yesJournal of Engineering Research - Egypt, 2018
This paper presents an intelligent over-vibration simulation and protection preference for three phase medium and high power induction motor. Three phase induction motor is widely used in industry because they are rugged, reliable and economical ...
Ayman Eissa
doaj   +1 more source

Rancang Bangun Elektronik Motor Relay sebagai Proteksi Berbagai Gangguan Motor Listrik

open access: yesJASIEK (Jurnal Aplikasi Sains Informasi Elektronika dan Komputer), 2022
The protection system against disturbances in induction motors has an important role in industry. In general, protection in electrical installations only uses MCB (Miniature Circuit Breaker) and fuses which can only protect against overcurrent and short ...
Resi Dwi Jayanti Kartika Sari   +2 more
semanticscholar   +1 more source

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