Experimental Studies of the Method for Determining Location of Damage of Overhead Power Lines in the Operation Mode

Control of Overhead Power Lines with Unmanned Aerial Vehicles (UAVs) - Studies in Systems, Decision and Control ◽

10.1007/978-3-030-69752-5_4 ◽

2021 ◽

pp. 55-77

Author(s):

Gennadiy A. Senderovich ◽

Artur O. Zaporozhets ◽

Oleg G. Gryb ◽

Ihor T. Karpaliuk ◽

Sergiy V. Shvets ◽

...

Keyword(s):

Operation Mode ◽

Experimental Studies ◽

Power Lines ◽

Overhead Power Lines

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Monitoring leakage currents of suspension insulators of high voltage overhead power lines

E3S Web of Conferences ◽

10.1051/e3sconf/201914005010 ◽

2019 ◽

Vol 140 ◽

pp. 05010

Author(s):

Iosif Breido ◽

Vladimir Kaverin ◽

Dinara Abisheva ◽

Aleksandr Kolychev

Keyword(s):

High Voltage ◽

Dynamic Characteristics ◽

Partial Discharge ◽

Experimental Studies ◽

Power Lines ◽

Suspension Insulator ◽

Continuous Current ◽

Overhead Power Lines ◽

High Voltage Power Lines ◽

Current Monitoring

The relevance of studying partial discharge currents (PDC) arising on the surface of suspension insulators of high-voltage overhead power lines (HVPL) is substantiated. Increasing PDC leads to increasing active energy losses and unauthorized shutdowns of high-voltage power lines due to the electric arc overlap of the suspension insulator. A laboratory bench for PDC experimental studying has been developed and manufactured. As a result of experimental studies we have determined static and dynamic characteristics of partial discharge currents; we have developed the algorithm for processing experimentally obtained results using Microsoft Excel spreadsheet editor. Recommendations have been developed for developing the hardware of the PDC sensor that allows increasing sensitivity, expanding the range of the controlled parameter and improving its dynamic characteristics in order to increase the accuracy and to expand the range of operation of the PDC sensor and to reduce the time it takes to establish its output signal. Equipping 220-500 kV power lines with PDC sensors of suspension insulators with telemetry will allow reducing the number of unauthorized emergency shutdowns of high-voltage power lines; realizing continuous current monitoring of the state of suspension insulators and receiving in real time the information of the integral value of PDC

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Reduction of magnetic field level in residential old buildings from overhead power lines by means of active screening

Electrical Engineering & Electromechanics ◽

10.20998/2074-272x.2021.5.04 ◽

2021 ◽

pp. 24-29

Author(s):

B. I. Kuznetsov ◽

T. B. Nikitina ◽

I. V. Bovdui ◽

V. V. Kolomiets ◽

B. B. Kobylianskiy

Keyword(s):

Magnetic Field ◽

Residential Buildings ◽

Experimental Studies ◽

Spatial Arrangement ◽

Power Lines ◽

Active Screening ◽

Overhead Power Lines ◽

Active Shielding ◽

The Magnetic Field ◽

Storey Building

Aim. Reduction of the magnetic field induction to the level of modern sanitary standards by means of active screening in residential old buildings which are located near existing typical overhead power lines are considered. Active shielding of the magnetic field inside a single-storey and multi-storey building is considered. During the design the number, configurations, spatial arrangement of the shielding windings, as well as the currents in the shielding windings were determined. Methodology. The design problem for the system of active shielding reduced to solving the minimax vector optimization problem. The vector of objective function in this minimax problem is calculated based on Biot-Savart's law. The solution of this problem is based on multi-agent optimization algorithms. Results. The results of theoretical and experimental studies of the systems of active shielding of the magnetic field generated by various overhead power lines inside a single and multi-storey building are presented. Originality. The possibility of reducing the induction of the initial magnetic field inside the shielded space to the level of sanitary standards is shown. Practical value. From the point of view of the practical implementation for a reasonable choice of the number and spatial arrangement of shielding windings of systems for active shielding of the magnetic field generated by various overhead power lines inside residential buildings of different storey’s are given.

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