Results 71 to 80 of about 489 (178)

Optimum Coordination Approach for Directional Overcurrent Relays in Interconnected Power Systems Considering Uncertainty in Photovoltaic Generation

IEEE Access
Optimizing the sensitivity and speed of the overcurrent protection system in the presence of distributed generation units while also ensuring the cost-effective design of the fault current limiter (FCL) represents great challenges for engineers.
Mahmoud A. Elsadd, Hossam A. Abd El-Ghany, Mohamed S. Zaky, Almoataz Y. Abdelaziz, Eman S. Ahmed   +4 more
doaj   +1 more source

Enhancement of the operating time of the overcurrent relay of the distribution network with high-level penetration of renewable energy sources

Results in Engineering
The calculation of the output current of distribution generation (DG) units interfaced with an inverter during the fault is a major issue for isolated and grid-connected distributed networks. The droop control inverter interfaced DG has controlled output
Mahmoud Aref, Mahmoud A. Mossa, Emad Abdelkarim, Khairy Sayed, Mishari Metab Almalki, Alaa F.M. Ali   +5 more
doaj   +1 more source

Design and development of an overcurrent protection relay

, 2023
Elektrik güç sistemleri, hızlı bir şekilde ele alınmazsa, pahalı ekipmana zarar verebilecek ve en kötü durumda birine bile zarar verebilecek farklı arıza türlerine karşı sıklıkla savunmasızdır. Güç sistemleri için sorun yaratabilecek bazı arıza türleri örn. aşırı gerilim, aşırı akım ve düşük gerilim.
openaire   +1 more source

DESIGN THREE PHASE OVERCURRENT RELAYS

Tikrit Journal of Engineering Sciences, 2015
 A new design of three phase overcurrent relay described in this paper. The performance of the new design shows the ability to obtain any shape of characteristic with high accuracy and distinguish between transient and steady state fault. This design used more precise and flexible model Sachdev linear model for get any characteristic, also fast ...
Mohammed Y Suliman,, Amer M. Kado
openaire   +1 more source

Incorporating Modern Fault Ride-Through Standards into the Short-Circuit Calculation of Distribution Networks. [PDF]

Sensors (Basel), 2023
Pompodakis EE, Katsigiannis Y, Karapidakis ES.   +2 more
europepmc   +1 more source

OVERCURRENT RELAY COORDINATION EFFECTS ON RELIABILITY INDICES

South African Journal of Industrial Engineering, 2012
<p>ENGLISH ABSTRACT: Mechanical equipment used on process plants can be categorised into two main types, namely static and rotating equipment. A brief survey at a number of chemical process plants indicated that a number of maintenance strategies ...
K. Mazlumi, A. Askarian Abyaneh
doaj  

Performance evaluation of advanced metaheuristic algorithms for directional overcurrent relay coordination in distribution networks. [PDF]

Sci Rep
Arslanoğlu İ, Altaş İH, Kılıç H.
europepmc   +1 more source

A Comparative Study of Smart THD-Based Fault Protection Techniques for Distribution Networks. [PDF]

Sensors (Basel), 2023
Al Hanaineh W, Matas J, Guerrero JM.
europepmc   +1 more source

Development of overcurrent relay based on wavelet transform for fault detection in transmission line. [PDF]

Sci Rep
Ananwattanaporn S, Lertwanitrot P, Ngaopitakkul A, Pothisarn C.   +3 more
europepmc   +1 more source

A Novel Directional Element for AC Lines in Systems with Inverter-Based Resources. [PDF]

Sensors (Basel)
Qian K, Wen M, Xue X, Sun Z.
europepmc   +1 more source