Integrated Noncontact Diagnostics of the Operable Condition of High-Voltage Insulators

Golenishchev-Kutuzov, A. V.; Golenishchev-Kutuzov, V. A.; Иванов, Д. А.; Mardanov, G. D.; Semennikov, A. V.

doi:10.1134/s1061830919080060

Cited by 11 publications

(10 citation statements)

References 10 publications

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“…On the basis of tension, it is possible to estimate the danger of current mechanical loads on inspected OPL. Therefore, on the basis of initial geometrical parameters of OPL span and current conductor oscillation period, it is possible to inspect [16][17][18][19] its current state.…”

Section: Discussionmentioning

confidence: 99%

Studying the Model of Free Harmonic Oscillations of Overhead Power Lines

Yaroslavsky¹

2020

IJETER

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This article is devoted to the importance of inspection of overhead power lines by detection of mechanical loads on conductors. A conductor under the action of forces caused by wind pressure swings like a pendulum. It is possible to determine conductor oscillations in space by inclinometer with high precision. While reconstructing conductor geometry in overhead power line span, it is possible to determine mechanical loads. Mechanical loads of overhead power line conductor are estimated using the developed model of free harmonic oscillations in span. The mathematical model of conductor is based on mathematical models of ideal cable and physical pendulum. Conductor is a physical pendulum, where a conductor acts as body, and fixed axle is presented by direct line passing through the conductor suspension points. The developed model determines conductor sag by oscillation period of conductor in span. The article discusses calculation algorithm of conductor sag for two cases: the conductor suspension points are at one height; the conductor suspension points are at different heights. Theoretical calculation is performed for the model of overhead power line span accompanied by estimation of sensitivity of the developed model and its error upon determination of conductor sag. Using the conductor sag, it is possible to reconstruct its geometry, thus, the mechanical loads of conductor. On the basis of initial geometrical parameters of overhead line span, it is possible to inspect its current state.

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Section: Discussionmentioning

confidence: 99%

Studying the Model of Free Harmonic Oscillations of Overhead Power Lines

Yaroslavsky¹

2020

IJETER

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“…Figure 4 represents the flowchart of the developed device for non-contact remote diagnostics of HVI. The device consists of a series-connected laser emitter (1), a polarization discriminator (2), an optical fiber (3), a photodetector (5), a narrow-band amplifier and a comparator (6), a personal computer (or laptop) (7), and an electro-optical sensor (4) connected to a fiber light guide (3) and a photodetector (5) [42]. The main measuring element of the device is the electro-optical sensor (4), which can be placed directly in a high alternating electric field because it is made without the use of metal elements.…”

Section: Methodsmentioning

confidence: 99%

“…The general scheme for measuring electric field gradients is shown in Figure 5. To scan the surface of high-voltage insulators, an electro-optical sensor ( 4) is placed on a dielectric rod and connected through a polarization discriminator (2) and a fiber light guide (3) with a laser emitter (1), as well as with a photodetector (5) [8,42]. The sensor is brought closer to the insulator to scan the surface.…”

Section: Methodsmentioning

confidence: 99%

“…The communication module transmits the received data to the control room via a 2.4 GHz radio channel. The PC collects information, records it, and then processes information about the amplitude, repetition rate, and phase of signals using the developed program by the highvoltage polymer insulators contactless diagnostics method [42]. The accumulation of signals over narrow phase intervals (about 20 deg.)…”

Section: Diagnostics By Electromagnetic and Acoustic Recording Of Pdmentioning

confidence: 99%

“…The PD signal processing ends with the characteristics display: the amplitude and The object of the research is a high-voltage insulator and a measuring cell is installed next to it [42]. Diagnostic data from the measuring cell is transmitted via a radio channel to the control room.…”

Section: Diagnostics By Electromagnetic and Acoustic Recording Of Pdmentioning

confidence: 99%

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Non-Contact Methods for High-Voltage Insulation Equipment Diagnosis during Operation

et al. 2021

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The article describes a complex of non-contact methods for remote diagnosis of high-voltage insulators as well as the two-channel method for remote diagnostics of the operating state of high-voltage insulators, based on the registration of partial discharges by electromagnetic and acoustic sensors. The presented device allows visual inspection and searches for faulty high-voltage equipment and a remote non-contact method of recording high-intensity electric fields of industrial frequency and their spatial distribution based on the electro-optical effect. The scheme of using the system for monitoring and diagnosing the technical condition of high-voltage support insulators of open switchgear is described. The results of experimental studies confirm the possibility of industrial applicability of the proposed method for non-contact remote diagnostics of the state of high-voltage insulators under operating voltage.

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Target Tracking Method of Transmission Line Insulator Based on Multi Feature Fusion and Adaptive Scale Filter

Zai¹,

Liu

2020

2020 5th Asia Conference on Power and Electrical Engineering (ACPEE)

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Integrated Noncontact Diagnostics of the Operable Condition of High-Voltage Insulators

Cited by 11 publications

References 10 publications

Studying the Model of Free Harmonic Oscillations of Overhead Power Lines

Studying the Model of Free Harmonic Oscillations of Overhead Power Lines

Non-Contact Methods for High-Voltage Insulation Equipment Diagnosis during Operation

Target Tracking Method of Transmission Line Insulator Based on Multi Feature Fusion and Adaptive Scale Filter

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