Results 21 to 30 of about 472,379 (329)

Research on the arcing horn with active arc extinguishing function for HVDC grounding electrode line

open access: yesIET Generation, Transmission & Distribution, 2023
The grounding electrode line is an important part of the Ultra high voltage direct current (UHVDC) transmission system. It acts as the channel to conduct the unbalanced current and the grounding current.The arcing horn consists of a pair of electrodes ...
Yicen Liu   +6 more
doaj   +1 more source

Numerical investigation of the double-arcing phenomenon in a cutting arc torch [PDF]

open access: yes, 2014
A numerical investigation of the double-arcing phenomenon in a cutting arc torch is reported. The dynamics of the double-arcing were simulated by using a two-dimensional model of the gas breakdown development in the space-charge layer contiguous to the ...
Kelly, Hector Juan   +3 more
core   +1 more source

Study on abnormal abrasion of metro pantograph

open access: yes机车电传动, 2023
Pantograph-catenary system is the central system for the power supply of urban rail transit trains. Higher train speed and complex train operating environment can generate severe vibrations on the pantograph-catenary system, resulting in high-frequency ...
ZHANG Shiyu   +4 more
doaj  

Mitigation of high energy arcing faults in nuclear power plant medium voltage switchgear

open access: yesNuclear Engineering and Technology, 2019
A high energy arcing fault event occurred in the medium-voltage (13.8 kV and 4.16 kV) metalclad switchgears in a nuclear power plant not only affecting switchgear but also connected equipment due to the arc energy.
Choong-koo Chang
doaj   +1 more source

Review of Medium-Voltage Switchgear Fault Detection in a Condition-Based Monitoring System by Using Deep Learning

open access: yesEnergies, 2022
In power energy distribution networks, switchgear is considered critical equipment. This is because the act of monitoring the operation and condition of switchgear, as well as performing the required corrective maintenance on any potentially problematic ...
Yaseen Ahmed Mohammed Alsumaidaee   +5 more
doaj   +1 more source

Characterisation of the cold metal transfer (CMT) process and its application for low dilution cladding [PDF]

open access: yes, 2011
The process characteristics of the synergic cold metal transfer (CMT) process have been examined for welding aluminium alloy. Utilising a simple backlighting system and through the arc monitoring the droplet transfer modes were identified.
Lunt, M.   +2 more
core   +1 more source

k-Arcs and dual k-arcs

open access: yesDiscrete Mathematics, 1994
In \(\text{PG}(n,q)\), a \(k\)-arc is a set of \(k\) points such that \(k\geq n+1\) but not \(n+1\) points belong to a hyperplane. A normal rational curve in \(\text{PG}(n,q)\), \(2\leq n\leq q-2\) is a \(q+1\) arc projectively equivalent to the set of points \(\{(1,t, \cdots, t^ n)\mid t\in \text{GF} (q)^ +\}\) where \(\text{GF}(q)^ +\) denotes ...
Storme, L., Thas, J.A.
openaire   +2 more sources

Three-phase transformer arcing horns; neglected deadly components to birds

open access: yesAvocetta, 2020
Unprotected power transformers are known to create electrocution problems for wildlife. However, the role of three-phase transformer arcing horns and bird electrocutions has not been investigated.
Mahmood Kolnegari, Richard E. Harness
doaj   +1 more source

Arc-consistency and arc-consistency again [PDF]

open access: yesArtificial Intelligence, 1994
There is no need to show the importance of arc-consistency in Constraint Networks. Mohr and Henderson [9] have proposed AC-4, an algorithm with optimal worst-case time complexity. But it has two drawbacks: its space complexity and average time complexity.
openaire   +2 more sources

Studi Pengaruh Arcing Terhadap Karakteristik Dielektrik Minyak Sawit

open access: yesJurnal Nasional Teknik Elektro, 2018
This paper discusses the dielectric properties of palm oil due to the arcing. Arcing was generated by applying a 50 Hz AC voltage at 25 kV level on the needle-plane electrode pair immersed in four type of samples which are different in arcing ...
Abdul Rajab
doaj   +3 more sources

Home - About - Disclaimer - Privacy