Results 1 to 10 of about 27,190 (117)

Coordination of adaptive distance protection in transmission and wind farm collector lines under resistive fault conditions [PDF]

open access: yesInternational Journal of Industrial Electronics, Control and Optimization, 2020
Distance relays calculate the path impedance between the fault point and the relay location by sampling the voltage and current at the relay location. By using the ratio of the impedance estimated by the relay to the impedance of the line where the relay
Jamshid Barati   +2 more
doaj   +1 more source

Influence of Phase-Shifting Transformers (PSTs) on the Distance Protection of Transmission Lines and Improve the Performance of Distance Relay [PDF]

open access: yesJournal of Electrical and Computer Engineering Innovations, 2021
Background and Objectives: With the ever-increasing growth of electric loads, the need for generating electric power grows correspondingly. By considering the limitations of power generation, utilizing novel technologies has gained persistent momentum ...
H. Sahraei, M. Tolou Askari
doaj   +1 more source

Detailed modelling and analysis of digital mho distance relay with single-pole operation

open access: yesActa Polytechnica, 2021
This paper introduces a methodology for modelling a digital admittance-type distance relay using PSCAD/EMTDC. The proposed distance relay was tested in a simulation of the Brazilian power grid with predetermined fault scenarios. The goal of this paper is
Paulo Henrique Barbosa de Souza Pinheiro   +4 more
doaj   +1 more source

An improved distance relay based on electronic transformer by using instantaneous value after equal transfer processes

open access: yesIET Generation, Transmission & Distribution, 2022
This paper analyses the formation mechanism of the transmission distortion of electronic voltage transformer, and points out that the integrator will magnify the transient transfer error and superimpose the dynamic additional component on the output ...
Baowei Li   +4 more
doaj   +1 more source

The Effect of Wind Power Generation on Distance Relay Performance

open access: yesAndalas Journal of Electrical and Electronic Engineering Technology, 2022
Wind Power Plants utilize induction generators to generate electrical power. This type of generator produces less short circuit current than synchronous generators; hence it may affect the operation of transmission line protection relays.
Adrianti Adrianti   +2 more
doaj   +1 more source

Mutual Coupling Compensation Techniques Used for Distance Protection of Parallel Lines

open access: yesEnergies, 2021
When a distance relay protects a transmission line located on a dual circuit tower, a coupling effect will occur between the two circuits. Transposition of the circuits can reduce the mutual impedances, but this does not cater to the zero-sequence mutual
Michael O Donovan   +3 more
doaj   +1 more source

Design and Implementation of Correct Operation of Transmission Line Distance Relay in the Presence of SVC under Asymmetrical Faults in Power Systems without Utilizing Communication Systems [PDF]

open access: yesهوش محاسباتی در مهندسی برق
This paper addresses the design and implementation of correct distance relay operation for transmission lines during single-phase asymmetric faults in the presence of SVC.
Saeed Abazari, Abas Marefat
doaj   +1 more source

Study of Coordination on Protection Relay in High Voltage Transmission 150 kV (Payakumbuh – Koto Padang, West Sumatra)

open access: yesMATEC Web of Conferences, 2018
The disturbance of the high voltage transmission can be caused by a short circuit, overload, lightning surge, and other natural disturbances. That disturbance can lead to disruption of the distribution of electricity and damage to the electric power ...
Zulkarnaini Zulkarnaini, Rizki Muhammad
doaj   +1 more source

Adaptive relay selection based on channel gain and link distance for cooperative out-band device-to-device networks

open access: yesHeliyon, 2021
Device-to-device (D2D) communication is one of the key enabling technologies for 5G to support many connections efficiently. In a cooperative out-band D2D communication network, relay nodes have an essential role in receiving and forwarding information ...
Isyatur Raziah   +4 more
doaj   +1 more source

A study on Relay Effect via Magnetic Resonant Coupling for Wireless Power Transfer

open access: yesMATEC Web of Conferences, 2016
Wireless power transfer (WPT) transmits electrical energy from a power source to an electrical load wirelessly or without any conductors. The capability of WPT to transmit the energy is limited.
Rashid N.A.   +6 more
doaj   +1 more source

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