A comparison of mechanical and ultrasonic anemometers for ampacity thermal rating in overhead lines

A. Laso, M. Mañana, A. Arroyo, A. González, R. Lecuna



CIGRE TB601 guide for thermal rating calculations recommends the use of ultrasonic anemometers over mechanical devices [1].
This paper aims to compare the mechanical and ultrasonic wind speed measurement technologies for the purpose of dynamic ampacity rating.
The comparison consists of applying the measurements of both anemometers (placed in the same spot) to the computation of ampacity in the same overhead line, and evaluating the diferences at different speed ranges.

Published in: Renewable Energy & Power Quality Journal (RE&PQJ),Vol. 1, Nº. 14
Pages:770-773 Date of Publication: 2016/5/20
ISSN: 2172-038X Date of Current Version:2016/5/4
REF:450-16 Issue Date: May 2016
DOI:10.24084/repqj14.450 Publisher: EA4EPQ

Authors and affiliations

A. Laso(1), M. Mañana(1), A. Arroyo(1), A. González(2), R. Lecuna(1)
1. Department of Electrical and Energy Engineering, E.T.S.I.I.T., Cantabria. University, Santander. Spain
2. Viesgo Distribución S.L. Spain

Key words

Ampacity rating, anemometer, comparison.


1] Cigre TB601: Guide for thermal rating calculations of overhead lines. December 2014.
[2] IEEE standard for calculating the current-temperature relationship of bare overhead conductors. IEEE Std 738-2012. (Revision of IEEE Std 738-2006). December 2013.
[3] Arroyo, A.; Castro, P.; Martinez, R.; Manana, M.; Madrazo, A.; Lecuna, R.; Gonzalez, A. Comparison between IEEE and CIGRE Thermal Behaviour Standards and Measured Temperature on a 132-kV Overhead Power Line. Energies 2015, 8(12), 13660-13671; doi:10.3390/en81212391.
[4] Guide to Meteorological Instruments and Methods of Observation. WMO, No. 8. Sixth edition (1996).
[5] Meteorology. Sonic anemometers/thermometers. Acceptance test methods for mean wind measurements. International Organization for Standardization (2000).