Remote detection of internal corrosion in conductor cables of power transmission lines

Pinto, A.V.; Sebrao, Mauro Zanini; Lourenco, Celia Regina S. H.; Almeida, Ildejairo Sant'Anna de; Saad, João Carlos Cury; Lourenco, Plutarcho M.

doi:10.1109/carpi.2010.5624453

Cited by 11 publications

(7 citation statements)

References 16 publications

(5 reference statements)

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“…This robot will move through bridges which are integral part of torsion tower junctions for crossing. A mobile robot platform [42] developed by Eletrobras-Cepel, Brazil for visually inspecting the external conditions of conductors and detecting internal faults in the Aluminium conductor steel-reinforced (ACSR) cables. Experiments are conducted on the electromagnetic interference and radio frequency interference (EMI and RFI) of the developed inspection robot in both laboratory and actual PTL environment.…”

Section: Existing Power-line Inspection Robotsmentioning

confidence: 99%

Dual arm electrical transmission line robot: motion through straight and jumper cable

2019

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Ground-based high voltage electrical line inspection is one of the difficult and highly dangerous job as far as a manual worker is concerned. The transmission line inspection by robots avoids temporary interruption of power supply that affects the end user and transmission grid. Also, robot-based inspection reduces maintenance cost and hazards. The electrical line inspection is normally carried out using binoculars and rarely by helicopters in most of the countries because of the low cost. Wire traversing or aerial robots are being used in Japan, Canada, USA and Russia for inspecting and monitoring faults in transmission lines and towers. However, most of these robots require a lot of human effort for installation due to its weight and complex design. Cost of these robots is also very high. This paper presents the mechanical design, fabrication and testing of a novel, low cost, light weight and compact power transmission line inspection robot. This work also includes kinematic, static and dynamic analysis of various subsystems of robot. Proposed robot is capable of traversing on straight transmission line and jumper cables present in tension towers. The robot has 10 DoF dual arm for crossing operation and a base system to achieve the locomotion.

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Section: Existing Power-line Inspection Robotsmentioning

confidence: 99%

Dual arm electrical transmission line robot: motion through straight and jumper cable

2019

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“…The NDT techniques that are commonly used in the industry include line scanning with robots [6], [8] or helicopters [9], [10] using visual and corona cameras, or ultrasonic probes. These methods need close contact with the conductors, thus making them expensive and unsafe for repair teams.…”

Section: Introductionmentioning

confidence: 99%

A Novel Approach to Utilize PLC to Detect Corroded and Eroded Segments of Power Transmission Lines

Hamidi

Hosseinian

Sadeghi

et al. 2015

IEEE Trans. Power Delivery

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A great number of existing power transmission lines have aged throughout the world. A considerable proportion of them are located in the environments that exacerbate their corrosion and erosion process. In-time detection of defects necessitates the use of nondestructive testing (NDT) techniques. Scanning the lines with robots and helicopters are the methods in use. In this paper, we propose a new NDT technique that uses the elements of power-line carriers, generally for information communication purposes, to detect the possibly corroded and eroded segments of each phase along a transmission line. The proposed NDT technique is based on the backward-wave propagation produced by a change in the characteristic impedance of a power transmission line, resulting from corrosion and erosion. To demonstrate the viability of the proposed approach, "EMTPWorks" is used to perform simulations. It is shown that the proposed technique can locate the surface defects and estimate the severity of them in transmission line conductors.

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“…This leads to gradual degradation of the conductor and consequently to unexpected costly problems and poor power supply quality, if not dealt with in a timely fashion [1].…”

Section: Introductionmentioning

confidence: 99%

Corrosion detection in steel reinforced aluminium conductor cables

Jaffrey

Hettiwatte

2014

2014 Australasian Universities Power Engineering Conference (AUPEC)

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Abstract-Aluminum Conductor Steel Reinforced (ACSR) cables, as part of transmission lines, are used in severe environments in coastal areas and industrial zones for many years. These cables are affected by galvanic corrosion in the interface between the aluminum and steel strands. This paper investigates the existing methods of corrosion detection used in ACSR cables of overhead transmission lines, and estimates the location of corrosion through simulation in a computer program. The paper also analyses two promising methods of corrosion detection, namely "electromagnetic induction" and "time domain reflectometry (TDR)", and explains in detail their principle of operation and efficiency. The paper then thoroughly investigates the time domain reflectometry techniques by implementing it in a computer program, and the simulation results are discussed.

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Remote detection of internal corrosion in conductor cables of power transmission lines

Cited by 11 publications

References 16 publications

Dual arm electrical transmission line robot: motion through straight and jumper cable

Dual arm electrical transmission line robot: motion through straight and jumper cable

A Novel Approach to Utilize PLC to Detect Corroded and Eroded Segments of Power Transmission Lines

Corrosion detection in steel reinforced aluminium conductor cables

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