Results 11 to 20 of about 162,451 (292)
A coordinated relay protection strategy of distribution network based on fault current limiting
Energy Reports, 2022 In order to solve the problem of difficult coordination of traditional overcurrent relay protection caused by short supply radius and little difference of fault current along urban distribution network, a coordinated relay protection strategy based on ...
Qingpeng Zeng +5 more
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Protection Coordination Index Assessment Using Fuzzy Logic Controller
Energies, 2022 This paper proposes the assessment method of the protection coordination index (PCI) for overcurrent protection relay and upstream relay. The protection coordination index is an indicator of how properly the equipment is protected by protective relay ...
Choong-Koo Chang +1 more
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Elektrika, 2022 To reduce damage to electrical power equipment, protective equipment is needed that is designed as well as possible, so that the protection relay can isolate faults in parts of the distribution network as fast as possible.
Andy Frediansyah +2 more
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Development of the mathematical model for operation of digital substations relay protection complexes [PDF]
Омский научный вестник, 2023 The issues of introduction of electrical digital substations in the Russian Federation are considered. An existing criteria analysis for assessing the modern relay protection devices efficiency is carried out and an assessment of their sufficiency is
A. V. Simakov +2 more
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INTELLIGENT RELAY PROTECTION [PDF]
Kontrol'. Diagnostika, 2020 Currently, with the introduction of electrical smart grids, one of the main problems is increasing the authenticity of turning on the relay protection devices during emergency modes. This is due to the fact that the short circuit current, and therefore setpoint, is affected by large number of external factors, such as the humidity of the earth and the ...
A. N. Shilin +3 more
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Research of the system-on-chip-based relay protection technology
Frontiers in Energy Research, 2023 The relay protection device is the core equipment that ensures the safe and stable operation of a power grid. With the open access of a large number of distributed generation, DC transmission and electric vehicles, a new deep low-carbon power system ...
Xiaobo Li, Wei Xi, Yang Yu, Hao Yao
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Energy Reports, 2022 In view of the fact that the actual operation information of sub-station relay protection device and the point table information of relay protection fault information system are still manually point-by-point proof reading.
Dongliang Nan +5 more
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Alexandria Engineering Journal, 2022 This research employs the capabilities of 7SJ602 model (overcurrent and earth fault relay) for better performance and faster response. The Semiens 7SJ602 model is connected to the real radial system of an Egyptian Substation to protect the feeder ...
Abdallah Reda +2 more
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MICROPROCESSOR RELAY PROTECTION
Modern Technologies and Scientific and Technological Progress, 2023 The advantages of microprocessor relay protection are considered on the example of the domestic SPAC 801 C3 unit (ABB Automation LLC, Cheboksary, which is based on microprocessor ...
Nikita Lanchukov +2 more
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Flexible protection architectures using distributed optical sensors [PDF]
, 2012 In this paper we describe recent developments in flexible protection schemes that make use of passive fibre Bragg grating (FBG) based transducers for the distributed measurement of voltage and current.
Beaumont, Phil +7 more
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