Results 21 to 30 of about 10,773 (195)
Мікропроцесорні пристрої релейного захисту: сьогодення й майбутнє
Elektrotehnìka ta Elektroenergetika, 2010 Устатті представлений аналіз основних конструктивних недоліків сучасних мікропроцесорних пристроїв релейного захисту (MПРЗ) і пропонуються основні принципи побудови MПРЗ, якіможуть використовуватися при створеннінових пристроїв.
V. I. Gurevich
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Power transformer protection by using Fuzzy Logic [PDF]
Iraqi Journal for Electrical and Electronic Engineering, 2009 Power transformer protective relay should block the tripping during magnetizing inrush and rapidly operate the tripping during internal faults. Recently, the frequency environment of power system has been made more complicated and the quantity of 2nd ...
A. Aziz +2 more
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Adaptive undervoltage protection scheme for safety bus in nuclear power plants
Nuclear Engineering and Technology, 2022 In the event of a short-circuit accident on a 4.16 kV non-safety bus, the voltage is temporarily lowered as backflow occurs on the safety bus. In such cases, the undervoltage relay of the safety bus shall not pick up the undervoltage so as not to ...
Choong-koo Chang
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Susceptibility of modern relay protection: Will protection from cyber attacks help? [PDF]
Serbian Journal of Electrical Engineering, 2014 Modern trends in relay protection (RP) based on the substitution of electromechanical protection relays (EMPR) by digital protective relays (DPR) have resulted in the emergence of an absolutely new problem, which was not known before.
Gurevich Vladimir
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Protection of power transformers against geomagnetically induced currents [PDF]
Serbian Journal of Electrical Engineering, 2011 The article examines the problem of saturation and failure of power transformers under geomagnetically induced currents and currents of the E3 component of high-altitude nuclear explosions.
Gurevich Vladimir
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Design, modeling and ımplementation of multi-function protective relay with digital logic algorithm
, 2020 In this paper, three phase transmission power system with three different protective schemes such as over current relay, over and under voltage relay and over and under frequency relay is developed using MATLAB/Simulink toolbox.
Rahebı, Javad +1 more
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New concept of microprocessor protective devices design [PDF]
Serbian Journal of Electrical Engineering, 2010 Transition from electromechanical to digital protective relays is accompanied with serious technical problems. The author offers a new approach in designing the digital relays capable of solving these problems.
Gurevich Vladimir
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Energy Reports, 2021 The protection system has a vital role in subsystems of the power network including the generation, transmission and distribution system. This system combines several types of protection relays including directional over current relay, differential relay,
Yasir Muhammad +8 more
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MODELING TO IMPROVE THE PERFORMANCE OF REVERSE POWER RELAY IN GENERATOR
Jurnal Ilmiah SINERGI, 2020 The generator is the primary component in electricity generation and requires a protection system from internal and external interference that occurs. This study considers how to improve the performance of relays in power plants.
Azriyenni Azhari Zakri, Fahrul Rozi
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IEEE Access, 2022 Recently, numerical relays with communication capabilities have been employed to provide adaptive solutions for Distributed Generations (DGs) protection issues.
Alaa Hmam El-Hamrawy +2 more
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