Results 51 to 60 of about 437 (164)
MachinesThe high temperature generated by the DC pantograph-catenary arc of urban rail systems will aggravate the wear of the pantograph-catenary system. When the ablation intensifies, it will lead to disconnection accidents on the contact line.
Xiaoying Yu +5 more
doaj +1 more source
Advances in fault diagnosis for high-speed railway: A review [PDF]
, 2019 The high speed railway (HSR) is a complex system with many subsystems and components. The reliability of its core subsystems is a key consideration in ensuring the safety and operation efficiency of the whole system.
Cheng, X, Li, K, Li, Y, Yin, M
core +1 more source
Engineering Reports, Volume 7, Issue 8, August 2025.Railway electrification systems indeed have unique challenges due to variable power demand and dynamic train operations. Power quality (PQ) monitoring for high‐speed trains (HSTs) is essential to guarantee the effectual and unfailing operation of the ESs.
Pampa Sinha +6 more
wiley +1 more source
A Review on Automatic Visual Inspection for Railway Overhead Contact Line Systems [PDF]
Inspections of overhead catenary systems include checks on the geometry of contact wire, the interaction between contact wire and pantograph, defects in components, worn components, and clearance are necessary to ensure the reliability, availability ...
Achmad, Romadoni +2 more
core +2 more sources
Availability Evaluation of Overhead Contact Lines Based on a Stochastic Colored Petri Nets Model
IET Electrical Systems in Transportation, Volume 2025, Issue 1, 2025.Due to their nonbackup characteristics and constant exposure to outdoor conditions, the performance of overhead contact lines (OCLs) will gradually degrade over time and further result in equipment defects or frequent failures. These issues significantly impact system availability and incur substantial repair costs.
Jingheng Zhou +4 more
wiley +1 more source
Pantograph-To-OHL Arc: Conducted Effects in DC Railway Supply System [PDF]
, 2018 The electrical arc occurring in the sliding contact between the supply contact line and the current collector (pantograph) of an electrical locomotive is a fast transient phenomenon able to degrade progressively the line-To-pantograph contact quality and,
Crotti G. +7 more
core +4 more sources
Research of simulation and experiment on arc characteristics of gas mechanical switch
High Voltage, Volume 9, Issue 3, Page 626-635, June 2024.Abstract An arc is the high‐temperature discharge plasma produced in the opening process of mechanical switches, which directly affects the breaking capability of a hybrid DC circuit breaker. According to the physical mechanism of an electric arc, the construction of an arc model for simulation analysis is an important technical means in the electrical
Cheng Jiang +7 more
wiley +1 more source
ANALYTICAL AND NUMERICAL MODELS FOR THE AERODYNAMIC NOISE PREDICTION OF AN HIGH-SPEED TRAIN PANTOGRAPH [PDF]
, 2014 The present work deals with the aeroacoustic analysis of a three-dimensional pantograph model, through the employment of an innovative analytical approach and a 3D numerical modeling.
D. SIANO +2 more
core
Influence of main operating conditions on contact wire wear of rigid catenary lines [PDF]
A validated overhead conductor rail and a well-known wear model have been programmed to perform closer-to- reality simulations. Reliable wear rate estimates for two configurations of overhead conductor rails and three models of pantographs at different
Casanueva, Carlos +4 more
core +1 more source
A Survey on Audio-Video based Defect Detection through Deep Learning in Railway Maintenance [PDF]
, 2022 Within Artificial Intelligence, Deep Learning (DL) represents a paradigm that has been showing unprecedented performance in image and audio processing by supporting or even replacing humans in defect and anomaly detection.
De Donato, Lorenzo +6 more
core +1 more source