Results 21 to 30 of about 3,902 (291)

Impacts of protection system misoperation on the reliability of Turkish National Power Transmission System [PDF]

open access: yes, 2011
State Grid EPRI (NARI Group);Sifang Automation Co., Ltd;Guodian Nanjing Automation Co., Ltd;Xuji Group Co.;Dongfang Electronics Co., Ltd2011 International Conference on Advanced Power System Automation and Protection, APAP 2011 -- 16 October 2011 through
Ilisu I.   +5 more
core   +1 more source

Fault Analysis and Design of a Protection System for a Mesh Power System with a Co-Axial HTS Power Cable

open access: yesEnergies, 2020
The uses of high-temperature superconducting (HTS) cables pose a challenge of power system protection since the impedance of the HTS cable is varied during fault conditions. The protection systems should be designed properly to ensure the reliability and
Thai-Thanh Nguyen   +3 more
doaj   +1 more source

Design and Implementation of Multifunction Relay Based on Microcontroller

open access: yesJournal of Techniques, 2021
The power systems are exposed to many abnormal conditions, so an advanced protection system must be provided to stand up to these challenges. Protection devices evolved continuously with the development of power systems.
Ali Abdulsattar Hameed   +2 more
doaj   +1 more source

Research on Reliability of Relaying Protection in Smart Substation

open access: yesWorld Journal of Engineering and Technology, 2019
Research on reliability of relaying protection in smart substation not only has a positive effect on the rational configuration scheme of relaying protection in smart substation, but also can promote the stability and safety of the overall operation of power system. There are many reliability strategies for relaying protection in smart substation.
Kai Wang, Wanqing Li
openaire   +2 more sources

Relay Protection Simulation and Testing of Online Setting Value Modification Based on RTDS

open access: yesIEEE Access, 2020
Analyzing the feasibility of modifying setting values on the condition of the running line without exiting the protection function is of great importance for 110 kV substations.
Zaixin Yang   +4 more
doaj   +1 more source

Relay Protection Setting Calculation System for Nuclear Power Plant Based on B/S Architecture and Cloud Computing

open access: yesEnergies, 2022
Nuclear power plants have a complex structure and changeable operation mode, which induces low setting calculation efficiency. After analyzing the technology, architecture, and functional logic of a variety of relay protection setting calculation systems
Yuan Hong   +5 more
doaj   +1 more source

Evaluation of Single Event Upset on a Relay Protection Device

open access: yes, 2023
Traditionally, studies have primarily focused on single event effects in aerospace electronics. However, current research has confirmed that atmospheric neutrons can also induce single event effects in China’s advanced technology relay protection ...
Hao Yu   +6 more
core   +1 more source

Quantitative analysis of the influence of asymmetric channel delay on relay protection's reliability

open access: yesDianxin kexue, 2019
The asymmetric delay of digital channels has negative effects on line current differential protection in a complex mechanism. Hence, it's necessary to use effective methods to improve the reliability of relay protection.
Huisheng GAO, Qing SHEN
doaj   +2 more sources

Microprocessor protection devices: The present and the future [PDF]

open access: yesSerbian Journal of Electrical Engineering, 2008
Paper presents the analysis of the basic constructive disadvantages of the present day microprocessor-based protective devices (MBR) and offers the basic principles for creating a new MBR that can be used in newly constructed devices.
Gurevich Vladimir
doaj   +1 more source

On determining the reliability of protective relay systems

open access: yesIEEE Transactions on Reliability, 1970
This paper lays the ground work for the statistical determination of the reliability of protective relay systems found in electric power systems. The reliability problem has two conflicting requirements: 1) failure to operate in the presence of a fault and 2) unnecessary operation when a fault occurs that the relay or relay system was set to ignore. It
openaire   +3 more sources

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