Results 11 to 20 of about 5,206 (199)

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

PENGGUNAAN METODE PHASE FAILURE RELAY UNTUK GANGGUAN VOLTAGE UNBALANCE PADA MOTOR INDUKSI 3 PHASA

open access: yesJurnal 7 Samudra, 2022
Gangguan voltage unbalance sangatlah mengganggu pada proses produksi, karena gangguan voltage unbalance berdampak besar pada motor induksi 3 phasa yang merupakan jenis motor paling sering digunakan pada proses produksi di industri. Voltage Unbalance menyebabkan ke tidak seimbangan arus yang mengalir menuju belitan stator motor.
null Mochammad Arif Wicaksono   +3 more
openaire   +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

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

Replacement of several single function generator protection relay at Badak LNG [PDF]

open access: yesMATEC Web of Conferences, 2019
Badak LNG is a company that operates the largest LNG Plant in Indonesia with maximum production capacity of 22.5 MTPA. The company operates twelve (12) steam turbine generators and one gas turbine generator and one diesel engine generator to supply ...
Perdana Iqbal Nusya
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

Analisis Penggunaan Phase Failure Relay Terhadap Unbalance Voltage pada Instalasi Motor Tiga Fasa

open access: yesProsiding Industrial Research Workshop and National Seminar, 2023
Di dalam dunia industri banyak digunakan sistem kelistrikan 3 fasa. Namun, dalam kenyataannya masih sering ditemukan terjadi ketidakseimbangan tegangan antara fasa R-N, S-N, T-N. Ketidak seimbangan inilah yang menyebabkan motor induksi bisa mengalami overheating sehingga bisa mengganggu kinerja motor tersebut.
openaire   +1 more source

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