Abstract
This article deals with overhead transmission conductor sag. The design, construction, instrumentation, and testing of a differential global positioning satellite (DGPS) system-based instrument for the measurement of conductor sag is proposed. Inherent and intentional errors in GPS technologies are discussed, and the DGPS method is described for accuracy enhancement. A DGPS-based overhead conductor-sag measuring instrument has been designed, constructed, and subjected to selected laboratory bench and power substation testing. A method to measure directly the physical sag of overhead conductors is described. The main advantage of the concept is the real-time direct measurement of a parameter (i.e., conductor sag) needed for the operation of the transmission system without intermediate measurement of conductor tension, temperature, and ambient weather conditions.
| Original language | English (US) |
|---|---|
| Pages (from-to) | 61-69 |
| Number of pages | 9 |
| Journal | Electric Power Components and Systems |
| Volume | 31 |
| Issue number | 1 |
| DOIs | |
| State | Published - Jan 1 2003 |
Keywords
- Conductor sag instrument
- Dynamic thermal line rating
- Global positioning satellite system
- Overhead conductor sag
ASJC Scopus subject areas
- Energy Engineering and Power Technology
- Mechanical Engineering
- Electrical and Electronic Engineering
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