Title :
On-Line Monitoring of Sag in Overhead Transmission Lines with Leveled Spans
Author :
Ramachandran, Poorani ; Vittal, Vijay
Author_Institution :
Electr. Eng. Dept., Arizona State Univ., Tempe, AZ
Abstract :
A method for real time monitoring of overhead transmission line sags has been proposed. Mechanical state estimation is used to determine the sag value of each span of the transmission line using real time data. Use of separate tension sensors for critical spans enhances the sag estimation process. The estimated sag values can be used to calculate the clearance values to check for compliance with the national electric safety code (NESC).
Keywords :
condition monitoring; overhead line mechanical characteristics; power overhead lines; mechanical state estimation; national electric safety code; online monitoring; overhead transmission line sags; sag estimation process; span level; tension sensors; Conductors; Electrical safety; Land surface temperature; Monitoring; Power system reliability; Power transmission lines; Temperature measurement; Temperature sensors; Thermal conductivity; Thermal engineering; Conductor sag; available transfer capacity; overhead conductor; ruling span; state estimation; tension;
Conference_Titel :
Power Symposium, 2006. NAPS 2006. 38th North American
Conference_Location :
Carbondale, IL
Print_ISBN :
1-4244-0227-1
Electronic_ISBN :
1-4244-0228-X
DOI :
10.1109/NAPS.2006.359604
