NDLI: Analysis of rail potential and stray current for Taipei Metro

Content Provider	IEEE Xplore Digital Library
Author	Shi-Lin Chen Hsu, S.-C. Chin-Tien Tseng Kun-Hong Yan Huang-Yu Chou Tong-Ming Too
Copyright Year	1967
Abstract	Taipei Metro adopted the diode-grounded scheme for stray current collection in construction of its cross rail network. During operation of the network, a high rail-to-earth potential (V/sub rail/) has been observed at the east end of the Blue Line (i.e., stations BL13-BL16). To find effective countermeasures, a series of field tests in a step-by-step development nature was conducted from 1999-2000, which led to the decision of disconnecting the impedance bond at G11 of the tie line so that the negative return current of the Blue Line cannot flow to the rails of the Red-Green Line, and vice versa (detailed in Sections III-A and V-C). This decision was implemented through contract-out work in 2003. Since then, the V/sub rail/ has been lowered by almost half before disconnection. To gain the insight characteristic before the contract-out, numerical simulations were also conducted by simulating the multi-train and multisection features of the cross transportation network. The simulation results (for V/sub rail/ and stray current, or I/sub stray/) were consistent with the field-test results. This paper presents the design of these field tests and their test results in comparison with the simulation results, based on which the countermeasures for reducing V/sub rail/ and the present status after V/sub rail/ reduction at Taipei Metro are presented.
Sponsorship	IEEE Vehicular Technology Society
Starting Page	67
Ending Page	75
Page Count	9
File Size	354781
File Format	PDF
ISSN	00189545
Volume Number	55
Issue Number	1
Language	English
Publisher	Institute of Electrical and Electronics Engineers, Inc. (IEEE)
Publisher Date	2006-01-01
Publisher Place	U.S.A.
Access Restriction	One Nation One Subscription (ONOS)
Rights Holder	Institute of Electrical and Electronics Engineers, Inc. (IEEE)
Subject Keyword	Rails Substations Light emitting diodes Testing Impedance Bonding Numerical simulation Transportation Earth Pipelines stray current DC transit railway diode-grounded field tests multi-train simulation rail-to-earth potential
Content Type	Text
Resource Type	Article
Subject	Applied Mathematics Automotive Engineering Computer Networks and Communications Electrical and Electronic Engineering Aerospace Engineering

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