Results 11 to 20 of about 303,318 (264)

The bubble formation characteristics of oil‐paper insulation and its influence on insulation performance

open access: yesHigh Voltage, 2023
Engineering experience shows that for transformers with long service life and serious moisture exposure, the inter‐turn paper insulation inside the winding will precipitate bubbles under the condition of electric field and conductor heating, which will ...
Yiyi Zhang   +6 more
doaj   +1 more source

Real Fault Location in a Distribution Network Using Smart Feeder Meter Data

open access: yesEnergies, 2021
Distribution networks transmit electrical energy from an upstream network to customers. Undesirable circumstances such as faults in the distribution networks can cause hazardous conditions, equipment failure, and power outages.
Hamid Mirshekali   +3 more
doaj   +1 more source

Hazard evaluation of ground potential difference within grounding grid on personal safety under impulse current

open access: yesIET Science, Measurement & Technology, 2021
Due to the impedance characteristic of conductor, the ground potential rise is different within grounding grid when impulse current is injected. When staff touches objects with different GPR at the same time, the GPD will be applied to human body ...
Chun Li   +5 more
doaj   +1 more source

Power System Protection

open access: yes, 2023
The reliability and security are major aspects of a power system. However, the fast development in electrical systems makes the protection more complicated and difficult to achieve the desired objective. These relays have many advantagessuch as fast operation.
S, Manoj   +3 more
openaire   +1 more source

Optimal Outage Management Model Considering Emergency Demand Response Programs for a Smart Distribution System

open access: yesApplied Sciences, 2020
In this paper, a novel smart outage management system considering Emergency Demand Response Programs (EDRPs) and Distributed Generations (DGs) denoted as SOMSDGsEDRPs is proposed.
Sobhan Dorahaki   +2 more
doaj   +1 more source

Extremely low frequency‐based faulty line selection of low‐resistance grounding system

open access: yesIET Generation, Transmission & Distribution, 2021
The single‐phase‐to‐ground faulty line selection methods based on the signals of the frequency above 10 Hz has a low discrimination of fault characteristic signal and characteristic signal may be covered by noise in cases of high‐resistance fault.
Qing Chen   +6 more
doaj   +1 more source

Instantaneous Specific Protection Method Against Faulty Synchronizations of Synchronous Machines

open access: yesIEEE Access, 2021
The probability of faulty synchronization of a generator is very small, but not impossible. The main cause of a faulty synchronization is due to wiring errors caused during maintenance or commissioning when voltage transformer and synchronizing equipment
Pengfei Tian   +3 more
doaj   +1 more source

Identification of Critical Transmission Lines in Complex Power Networks

open access: yesEnergies, 2017
Growing load demands, complex operating conditions, and the increased use of intermittent renewable energy pose great challenges to power systems. Serious consequences can occur when the system suffers various disturbances or attacks, especially those ...
Ziqi Wang   +4 more
doaj   +1 more source

Differential protection strategy for distribution network based on 5G communication

open access: yesIET Generation, Transmission & Distribution, 2023
With the high penetration of distributed generation and gradual increase in loop network structures, existing over‐current protection in distribution networks is difficult to apply. The use of current differential protection has become an ideal solution,
Liu Zhiren   +6 more
doaj   +1 more source

A Parameter-Free Approach for Fault Section Detection on Distribution Networks Employing Gated Recurrent Unit

open access: yesEnergies, 2021
Faults in distribution networks can result in severe transients, equipment failure, and power outages. The quick and accurate detection of the faulty section enables the operator to avoid prolonged power outages and economic losses by quickly retrieving ...
Mohammad Reza Shadi   +4 more
doaj   +1 more source

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