NDLI: Sensor design for leakage current measurement on ADSS fiber-optic cable

Content Provider	IEEE Xplore Digital Library
Author	Karady, G.G. Qi Huang Reta-Hernandez, M. Srinivasan, D. Tuominen, M.
Copyright Year	2001
Abstract	All-dielectric-self-supporting (ADSS) fiber-optic cables are installed on high voltage transmission lines for communication purposes. When the cables become polluted and wet, a conductive layer is formed on the cable. Currents are induced on the surface of the cable leading to dry-band arcing. A comparatively large number of fiber-optic cable outages have been reported in UK near seacoasts, and it is believed the dry-band arcing is the responsible for the damage. Knowledge of the leakage current levels on the cable surface before dry-band arcing can be used to predict cable failure. Monitoring the leakage current can also yield information on the aging of the cable. This paper presents a review of three different current sensors that can be used on ADSS cables, which include a simple shunt resistor, an active Rogowski coil, and a double core sensor. The frequency response and output characteristics of the different sensors are presented. A current monitoring system is designed and constructed for use with ADSS on high voltage transmission lines. A shunt resistor is used as a sensor. The system is self-contained and consists of a solar panel, data acquisition system and cellular communications. The system has been tested and its performance is presented.
Starting Page	281
Ending Page	286
File Size	667179
Page Count	6
File Format	PDF
ISBN	0780366727
DOI	10.1109/PESW.2001.917049
Language	English
Publisher	Institute of Electrical and Electronics Engineers, Inc. (IEEE)
Publisher Date	2001-01-28
Publisher Place	USA
Access Restriction	Subscribed
Rights Holder	Institute of Electrical and Electronics Engineers, Inc. (IEEE)
Subject Keyword	Leakage current Current measurement Optical fiber sensors Optical fiber cables Communication cables Sensor phenomena and characterization Optical fiber communication Voltage Resistors Transmission line measurements
Content Type	Text
Resource Type	Article

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4	Project PI / Joint PI	Principal Investigator and Joint Principal Investigators of the project	Dr. B. Sutradhar bsutra@ndl.gov.in Prof. Saswat Chakrabarti will be added soon
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