Continuous Monitoring of Transmission Lines Sag through Angular Measurements Performed with Wireless Sensors
Round 1
Reviewer 1 Report
The article concerns the research related to the development of the method of measuring the sag of the cable in real conditions. A method was used to determine the sag value based on the measurement of the angular inclination of the cable at one end. The angle is measured using wireless sensors developed by the authors and adapted in the field to monitor wind-induced vibrations on HVTL cables. The work presents an interesting scientific concept of developing a method for measuring the sag of overhead wires, which is important for the transmission power industry. In my opinion, the work can be published in such a version and does not require corrections.
Author Response
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Author Response File: 
Author Response.pdf
Reviewer 2 Report
To whom it may concern:
(1) Sentences sometimes lack parts, so that they become incomprehensible. English editing is highly recommended.
(2) You derive a set of equations relating to the parabolic shape of the transmission line. My impression is that equation 8 is lacking a relation to the constant k. If that was true, it would render all subsequent equations invalid. For that reason, I strongly recommend to add a supplementary document with the derivations. My calculations match yours on all equations, but no. 8. For the paper to be published, this issue should be clarified.
(3) Furthermore, it is not good publishing style to use different symbols in the graph and in the text relating to the graph.
Kind regards
Author Response
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Author Response File: Author Response.pdf
Reviewer 3 Report
A simple method to compute the sag based on the measurement of the conductor slope in proximity of the span extremities is illustrated. The angular measurements are carried out exploiting MEMS accelerometers mounted on wireless sensors already developed and employed for HVTL conductors vibration monitoring. The results look encouraging and motivating. But some contents need be revised in order to meet the requirements of publish.
(1)The abstract should be improved. Your point is your own work that should be further highlighted.
(2)The parameters in expressions are given and explained.
(3) The method in the context of the proposed work should be written in detail
(4) The values of parameters could be a complicated problem itself, how the authors give the values of parameters in the used methods.
(5) In Figure 4, the sag values estimated through the proposed method is not obvious by comparing with the comparison method. Why?
(6) The main contributions of this paper should be further summarized and clearly demonstrated.
(7) One key background of this manuscript is the advanced techniques. Thus, the Introduction and/or related work section could be extended and incorporates additional discussions on the topics of advanced techniques, e.g., https://doi.org/10.1016/j.marstruc.2022.103338ï¼›https://doi.org/10.1088/1361-6501/ac9a61ï¼›https://doi.org/10.3389/fendo.2022.1057089 and so on.
(8) There are some grammatical errors seen in the paper. Check carefully for a few clerical errors and formatting issues.
Author Response
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Author Response File: Author Response.pdf
Reviewer 4 Report
Please see the attached document.
Comments for author File: Comments.pdf
Author Response
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Author Response File: Author Response.pdf
Round 2
Reviewer 2 Report
Reviewer 3 Report
All my previous concerns have been accurately addressed. I think that this paper can be accepted.
Reviewer 4 Report
Thank you.
