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Proceedings Paper

Contact wire zigzag value detection in the electrified railway
Author(s): Xiaorong Gao
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Paper Abstract

One of the main reasons for result the pantograph-catenary system fault in electrified railway is the contact wire zigzag value exceeding quota. In this paper, an infrared LED based photoelectric detecting system which is directly installed in the electric locomotives is presented and the method of dynamic measuring of the contact wire bias is realized. The system designed which consists of IR-LED and corresponding photo-detectors, encoder, signal transmission channel insulating from high to low voltage side, decoder and data processing device is described in details. It is shown that the zigzag value examining sensors are mounted on the head of pantograph, each neighbor unit get interval distance of 10 mm and there are 120 units altogether. The signals are output when the overhead line slipping over the slide's surface of the pantograph. The experimental results of the zigzag value obtained from the field test are reported and it has been practically proved that measuring error < 0.5%. The results are of important significance for the dynamic performance analysis as well as fault diagnosis for the pantograph- catenary system.

Paper Details

Date Published: 17 May 2001
PDF: 9 pages
Proc. SPIE 4285, Testing, Reliability, and Applications of Optoelectronic Devices, (17 May 2001); doi: 10.1117/12.426897
Show Author Affiliations
Xiaorong Gao, Southwest Jiao Tong Univ. (China)

Published in SPIE Proceedings Vol. 4285:
Testing, Reliability, and Applications of Optoelectronic Devices
Aland K. Chin; S. C. Wang; Niloy K. Dutta; Niloy K. Dutta; Kurt J. Linden; S. C. Wang, Editor(s)

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