An outdoor test facility was used to experimentally verify real-time
overhead conductor ampacity and sag programs. The facility consists
of a 213m span of 26/7 336 kcmil ACSR conductor completely instrumented
with 13 thermocouples as well as a sag and tension device. A
weather station mounted near mid-span monitors all pertinent weather
conditions. The measured conductor temperatures fluctuated signifi·
cantly along the length of the test span. Spanwise variations in the
measured instantaneous temperatures were frequently in excess of
10°C for a wide variety of conductor currents and weather conditions.
The conductor temperatures predicted by the real-time ampacity program
were within 10°C of the average measured conductor
temperatures for all tests. Measured conductor sags were within 5
percent of values predicted by a real-time sag program. The results of
the experimental project show that accurate predictions o.f real-time
conductor temperatures and sags can be achieved by knowing the
conductor current, wind speed, wind direction and the ambient air
temperature. Therefore, computer programs are capable of predicting
conductor temperatures and sags with a minimum amount of weather
data provided by a simple and inexpensive weather station. Instrumentation
placed on the conductor is not necessary for execution of the
ampacity and sag programs.
%0 Journal Article
%1 bush1983experimental
%A Bush, R
%A Black, W
%A Champion, T
%A Byrd, W
%D 1983
%K Line Overhead
%T EXPERIMENTAL VERIFICATION OF A REAL-TIME PROGRAM FOR THE
DETERMINATION OF TEMPERATURE AND SAG OF OVERHEAD LINES
%X An outdoor test facility was used to experimentally verify real-time
overhead conductor ampacity and sag programs. The facility consists
of a 213m span of 26/7 336 kcmil ACSR conductor completely instrumented
with 13 thermocouples as well as a sag and tension device. A
weather station mounted near mid-span monitors all pertinent weather
conditions. The measured conductor temperatures fluctuated signifi·
cantly along the length of the test span. Spanwise variations in the
measured instantaneous temperatures were frequently in excess of
10°C for a wide variety of conductor currents and weather conditions.
The conductor temperatures predicted by the real-time ampacity program
were within 10°C of the average measured conductor
temperatures for all tests. Measured conductor sags were within 5
percent of values predicted by a real-time sag program. The results of
the experimental project show that accurate predictions o.f real-time
conductor temperatures and sags can be achieved by knowing the
conductor current, wind speed, wind direction and the ambient air
temperature. Therefore, computer programs are capable of predicting
conductor temperatures and sags with a minimum amount of weather
data provided by a simple and inexpensive weather station. Instrumentation
placed on the conductor is not necessary for execution of the
ampacity and sag programs.
@article{bush1983experimental,
abstract = {An outdoor test facility was used to experimentally verify real-time
overhead conductor ampacity and sag programs. The facility consists
of a 213m span of 26/7 336 kcmil ACSR conductor completely instrumented
with 13 thermocouples as well as a sag and tension device. A
weather station mounted near mid-span monitors all pertinent weather
conditions. The measured conductor temperatures fluctuated signifi·
cantly along the length of the test span. Spanwise variations in the
measured instantaneous temperatures were frequently in excess of
10°C for a wide variety of conductor currents and weather conditions.
The conductor temperatures predicted by the real-time ampacity program
were within 10°C of the average measured conductor
temperatures for all tests. Measured conductor sags were within 5
percent of values predicted by a real-time sag program. The results of
the experimental project show that accurate predictions o.f real-time
conductor temperatures and sags can be achieved by knowing the
conductor current, wind speed, wind direction and the ambient air
temperature. Therefore, computer programs are capable of predicting
conductor temperatures and sags with a minimum amount of weather
data provided by a simple and inexpensive weather station. Instrumentation
placed on the conductor is not necessary for execution of the
ampacity and sag programs.},
added-at = {2020-06-12T16:00:24.000+0200},
author = {Bush, R and Black, W and Champion, T and Byrd, W},
biburl = {https://www.bibsonomy.org/bibtex/2d1e5d61b5442dc5d47d35cdd73b1cf4f/ceps},
interhash = {f3605172764aa225c570de5a2792942f},
intrahash = {d1e5d61b5442dc5d47d35cdd73b1cf4f},
keywords = {Line Overhead},
timestamp = {2023-12-21T08:30:21.000+0100},
title = {EXPERIMENTAL VERIFICATION OF A REAL-TIME PROGRAM FOR THE
DETERMINATION OF TEMPERATURE AND SAG OF OVERHEAD LINES},
year = 1983
}