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Location Monitoring with Determining the Location of Damage and the Current Performance of Overhead Power Lines
Location monitoring of overhead power lines (OPL) is a modern method of instrumental non-destructive testing to detect, verify, and rank any line defects. The results of location monitoring of operating power lines over the past 27 years (since 1995) are described. The results of pilot operation of software and hardware location systems for monitoring 35 – 330 kV lines at six substations in Russia for 13 years are discussed. The specific technological features implemented in the multifunctional multichannel location complexes operating in a self-sustained automatic OPL monitoring mode are described. Technologies for monitoring the performance of overhead power lines coming out of a substation along their entire length are considered using a single software and hardware complex. Examples of measuring technologies used to quantify delays of pulses reflected from line inhomogeneities, resulting from such types of damage as wire breakage or short circuits, and to determine distances to them are provided. Methods for determining OPL configurations, capable of identifying branching and inhomogeneities, as well as unauthorized line connections, are analyzed. The methods of location monitoring of wire temperature and sagging are discussed, which affect the distance measurement error. A method for optimizing the operation of automatic reclosing device and a method for panoramic control of the frequency load of high-frequency OPL sections are considered.
Location Monitoring with Determining the Location of Damage and the Current Performance of Overhead Power Lines
Location monitoring of overhead power lines (OPL) is a modern method of instrumental non-destructive testing to detect, verify, and rank any line defects. The results of location monitoring of operating power lines over the past 27 years (since 1995) are described. The results of pilot operation of software and hardware location systems for monitoring 35 – 330 kV lines at six substations in Russia for 13 years are discussed. The specific technological features implemented in the multifunctional multichannel location complexes operating in a self-sustained automatic OPL monitoring mode are described. Technologies for monitoring the performance of overhead power lines coming out of a substation along their entire length are considered using a single software and hardware complex. Examples of measuring technologies used to quantify delays of pulses reflected from line inhomogeneities, resulting from such types of damage as wire breakage or short circuits, and to determine distances to them are provided. Methods for determining OPL configurations, capable of identifying branching and inhomogeneities, as well as unauthorized line connections, are analyzed. The methods of location monitoring of wire temperature and sagging are discussed, which affect the distance measurement error. A method for optimizing the operation of automatic reclosing device and a method for panoramic control of the frequency load of high-frequency OPL sections are considered.
Location Monitoring with Determining the Location of Damage and the Current Performance of Overhead Power Lines
Power Technol Eng
Minullin, R. G. (author) / Akhmetova, I. G. (author) / Kasimov, V. A. (author) / Piunov, A. A. (author)
Power Technology and Engineering ; 57 ; 145-152
2023-05-01
8 pages
Article (Journal)
Electronic Resource
English
35 – 330 kV overhead power lines , location monitoring , attenuation and delay of reflected pulses , wire breakage and short circuits , fault location , reading error , configuration and real-time performance control of overhead power lines Energy , Energy Systems , Power Electronics, Electrical Machines and Networks , Renewable and Green Energy , Geoengineering, Foundations, Hydraulics
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