Application of the Global Positioning System to the measurement of overhead power transmission conductor sag

Author

Mensah-Bonsu, Chris ; Krekeler, Ubaldo Fernández ; Heydt, Gerald Thomas ; Hoverson, Yuri ; Schilleci, John ; Agrawal, Baj L.

Author_Institution

California Independent Syst. Operator, Folsom, CA, USA

Volume

17

Issue

1

fYear

2002

fDate

1/1/2002 12:00:00 AM

Firstpage

273

Lastpage

278

Abstract

This paper describes a method to directly measure the physical sag of overhead electric power transmission conductors. The method used relies on the Global Positioning System (GPS) used in the differential mode. The direct measurement of sag is a main advantage of the concept. The digital signal processing required is described in detail in a four-level configuration. The typical accuracy, response time, problems, strengths and weaknesses of the method are also described

Keywords

Global Positioning System; overhead line conductors; overhead line mechanical characteristics; power overhead lines; power system measurement; signal processing; Global Positioning System; Open Access Same Time Information System; accuracy; conductor clearance warning; differential mode; digital signal processing; dynamic thermal line rating; four-level configuration; overhead power transmission conductor sag measurement; response time; Circuits; Conductors; Electric variables measurement; Global Positioning System; Information systems; Position measurement; Power industry; Power measurement; Power transmission; Thermal conductivity;

fLanguage

English

Journal_Title

Power Delivery, IEEE Transactions on

Publisher

ieee

ISSN

0885-8977

Type

jour

DOI

10.1109/61.974218

Filename

974218