Performance Evaluations of DCAT Position for the Floating DCAT System in DC Railways

Wang, Miao; Yang, Xiaofeng; Zheng, Trillion Q.; Ni, Menghan; Wei, Guo

doi:10.1007/978-981-15-2862-0_54

Cited by 1 publication

(2 citation statements)

References 11 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…Electric shock is the major disadvantage of this system, but installing screen door platforms or placing the conductor rail away from the platform can solve this issue [34]. In third rail systems with top contact, snow is more likely to accumulate, which can cause interruptions in the operation of the system [35].…”

Section: Third Rail Advantages and Disadvantagesmentioning

confidence: 99%

“…Little visual intrusion on the environment [30] Less expensive installment procedure [30] No vertical clearance required [33] More robust than overhead line systems [32,35] Easy to reach and easy to maintain [31] Third rail disadvantages Speed limitation [29] Involves safety hazard [34] Limited capacity due to the low voltage [27] High voltage drop [4] Cannot be used for freight and high-speed trains [28] short-circuit power is low enough [11]. Supply voltage distortion, which is common in electrical systems that use capacitors, can be boosted by parallel resonances.…”

Section: Third Rail Advantagesmentioning

confidence: 99%

See 1 more Smart Citation

Development of Strategies to Prevent Third Rail Insulator Failures in Transit Systems

Rouhanizadeh

Kermanshachi

2021

Urban Rail Transit

View full text Add to dashboard Cite

Failures of third rail insulators, which often impose problems that affect the serviceability of transit systems, rarely have been investigated. This study examines various aspects of third rail systems, identifies causes of insulator failures, and develops and categorizes preventive strategies. To accomplish the goals, the existing literature was reviewed and analyzed to identify various characteristics of third rails and insulators. Then, five transit case studies were analyzed to determine the characteristics of third rails, identify the causes of insulator failures, and evaluate the preventive strategies adopted by transit agencies. The results revealed that local environmental conditions cause degradation of insulators, with dirt build-up being the biggest contributor to failure. Performing maintenance and inspections of insulators at predetermined intervals was also shown to be very effective for preventing failure. The preventive strategies were classified into three categories: regular inspections; preventive maintenance programs; and regulation and safety, with regular inspections being the most frequently adopted. Findings of this study will serve as an appropriate source of information for practitioners who work with third rail systems and will help them adopt effective strategies.

show abstract

Section: Third Rail Advantages and Disadvantagesmentioning

confidence: 99%