Results 61 to 70 of about 1,023,955 (207)

Effect of CT transient characteristics on transfer of inrush

open access: yesThe Journal of Engineering, 2019
During the inrush period, multiple misoperation accidents of differential protection of transformers happened, which seriously threatened the safe and stable operation of power grid.
Wei Liu   +5 more
doaj   +1 more source

Transformer Differential Protection Lab [PDF]

open access: yes, 2016
The purpose of the Transformer Differential Protection Lab senior design project is to implement the transformer differential protection scheme to protect a transformer when an internal fault is applied.
Dunbar, Justin   +2 more
core   +1 more source

DIFFERENTIAL PROTECTION OF BUSBAR 110-220 kV WITH APPLICATION OF METHOD OF DOUBLE ENTRY

open access: yesИзвестия высших учебных заведений: Проблемы энергетики, 2018
For increase of efficiency protection of busbar 110-220 kV is proposed to use an algorithms, based on the differential principle, in combination with the method of double entry. Double entry it is method of registration of economic operations accounting,
A. L. Kulikov   +3 more
doaj   +1 more source

An Adaptive Overcurrent Coordination Scheme to Improve Relay Sensitivity and Overcome Drawbacks due to Distributed Generation in Smart Grids [PDF]

open access: yes, 2017
Distributed Generation (DG) brought new challenges for protection engineers since standard relay settings of traditional system may no longer function properly under increasing presence of DG.
Conde, Arturo   +3 more
core   +1 more source

Research on Improvement of Data Synchronization Method for Distribution Network Differential Protection Based on 5G

open access: yesEnergies
To enhance the reliability of traditional current protection systems in the evolving landscape of future power grids, this paper proposes a differential protection data synchronization approach that leverages satellite and 5G network timing.
Haiqiang Fan   +6 more
doaj   +1 more source

The Analysis and Solution of Current Differential Protection Maloperation for Transmission Line with High Series Compensation Degree

open access: yesEnergies, 2019
With the increasing integration of huge-size generators and tighter interconnection among power grids, in internal fault, the fault current of Series Compensated (SC) lines may be reversed.
Zhenxing Li   +5 more
doaj   +1 more source

Outgrowing Resource Dependence: Theory and Evidence [PDF]

open access: yes
Many policy makers are concerned about dependence on resource exports. This paper examines three changes that reduce this dependence: (i) accumulation of capital and skills; (ii) changes in protection policy, particularly reductions in the burden of ...
Will Martin
core  

Differential Protection of a Three-Phase Power Transformer Using Hall Effect Current Transducer [PDF]

open access: yes, 2002
In a power system, transformers and other electrical equipment need to be protected not only from short circuit, but also from abnormal operating conditions, such as over loading, and differential fault protection.
Fathollahi Fard, Ali Asghar
core  

Differential Protection for an Outgoing Transformer of Large-Scale Doubly Fed Induction Generator-Based Wind Farms

open access: yesEnergies, 2014
With the rapid development of wind energy, relay protection for large-scale wind farms has been attracting some researchers, due to the absence of standards. Based on the large-scale doubly fed induction generator (DFIG)-based wind farms located in Gansu
Bingtuan Gao   +5 more
doaj   +1 more source

Application of 5G to current differential protection of distribution network

open access: yesDianxin kexue, 2020
Driven by the strategy of grid as a Platform,Hub,and Sharing as well as the construction of Energy Internet and Ubiquitous power Internet of Things declared by Sate Grid Corporation of China,the intelligent distribution network evolves towards ...
Yuxiang LV   +3 more
doaj  

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