Results 1 to 10 of about 3,526 (115)

Research on the method of constructing a knowledge map of relay protection device faults oriented to textual features [PDF]

open access: yesScientific Reports
In recent years, science and technology have been developing at a high speed, and the new generation of information technology featuring digitization, networking and intelligence has been increasingly innovative and breakthrough, pushing the whole ...
Wang Kui   +3 more
doaj   +2 more sources

Research on the remote automatic test technology of the full link of the substation relay protection fault information system

open access: yesEnergy 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
doaj   +1 more source

A coordinated relay protection strategy of distribution network based on fault current limiting

open access: yesEnergy 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
doaj   +1 more source

Protection Coordination Index Assessment Using Fuzzy Logic Controller

open access: yesEnergies, 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
doaj   +1 more source

Research of the system-on-chip-based relay protection technology

open access: yesFrontiers 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
doaj   +1 more source

DEVICE FOR DETERMINING THE VALUE OF THE STEADY-STATE ELECTRICITY IN THE PRIMARY CIRCUIT USING A REED SWITCH AND A MICROPROCESSOR

open access: yesScientific Journal of Astana IT University, 2023
This article discusses an innovative device designed to determine the value of the steady-state current in the primary circuit of electrical installations using reed switches and a microprocessor without the use of current transformers.
A. Neftisov, O. Talipov, O. Andreeva
doaj   +1 more source

Enhanced Readability of Electrical Network Complex Emergency Modes Provided by Data Compression Methods

open access: yesInformation, 2023
Current microprocessor-based relay protection and automation (RPA) devices supported by IEC 61850 provide access to a large amount of information on the protected or controlled electric power facility in real time.
Aleksandr Kulikov   +2 more
doaj   +1 more source

New concept of microprocessor protective devices design [PDF]

open access: yesSerbian 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
doaj   +1 more source

Adjustment Factor Model of Relay Protection Equipment Failure Rate Based on Data Fitting

open access: yesZhongguo dianli, 2021
Analyzing the impact of equipment maintenance on the failure rate of relay protection equipment is helpful to the formulation of relay protection equipment maintenance plans and the realization of long-term stable and reliable operation of the power grid.
Huping YANG   +5 more
doaj   +1 more source

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