Research on DC Bus Overvoltage Fault in Double UPS Parallel Operation. (English)

In view of such frequent alarm-triggering failures as DC bus overvoltage reported by the signal system of Haizhu Square Station of Guangzhou Metro Line 6 after the transformation into UPS parallel operation, this paper provides an in-depth analysis, demonstrates the causes, and puts forward a solution of such failures. It also summarizes the matters needing attention in the transformation into UPS parallel operation, with a view to providing reference for peers in various cities. [ABSTRACT FROM AUTHOR]

Copyright of Railway Signalling & Communication Engineering is the property of Railway Signalling & Communication Engineering and its content may not be copied or emailed to multiple sites or posted to a listserv without the copyright holder's express written permission. However, users may print, download, or email articles for individual use. This abstract may be abridged. No warranty is given about the accuracy of the copy. Users should refer to the original published version of the material for the full abstract. (Copyright applies to all Abstracts.)