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

Hamidi, Reza Jalilzadeh; Hosseinian, Seyed Hossein; Sadeghi, S.H.H.; Qu, Zhihua

doi:10.1109/tpwrd.2014.2326167

Cited by 17 publications

(4 citation statements)

References 13 publications

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“…Condition monitoring activities/detection methods are specified in the worksheet (table V). In addition to the traditional detection methods, novel non-destructive testing and Evaluation (NDT&E) techniques [17] are recently introduced such as wave propagation based SHM can be employed to detect possible damages in panel body plate [18][19].…”

Section: Detection Methods Andfailure Compensation Provisionsmentioning

confidence: 99%

Study of Failure Mode and Effect Analysis (FMEA) on Capacitor Bank Used in Distribution Power Systems

Pourramazan¹,

Saffari²,

Barghandan³

2017

International Journal of Innovative Research in Electrical, Ele

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Failure Mode and Effect Analysis (FMEA) is the systematic procedure for the analysis and assessment of the potential failure of the equipment. Failure modes of the equipment, causes and effects of the failure modes, detection methods and mitigation methods, as well as the severity of the effects and frequency are specified in the FMEA. This study is a part of the project "consultancy services for preparation of network asset maintenance standards & associated asset management documentation" which are carried out by Monenco consulting engineering company (Iran) for Majan Electricity Company SAOC (Oman). This paper presents FMEA and related worksheets for capacitor banks used in Oman distribution power system and consist of following items: component of the equipment, functions of the component, failure modes of the component, failure causes, failure effect (local and final), detection method, compensating provision, severity of the effect and eventually frequency of the failure modes. This method can be utilized for FMEA execution of all other equipment of the power distribution system. The output of the FMEA can be utilized for critically analysis, Reliability centered maintenance (RCM) and risk based maintenance initiatives.

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Section: Detection Methods Andfailure Compensation Provisionsmentioning

confidence: 99%

Study of Failure Mode and Effect Analysis (FMEA) on Capacitor Bank Used in Distribution Power Systems

Pourramazan¹,

Saffari²,

Barghandan³

2017

International Journal of Innovative Research in Electrical, Ele

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“…The assessment of the environment in which outdoor equipment with metal shells operate has attracted great interest in the fields of electronics, petroleum, and transportation [1,2,3]. However, metal equipment can easily be corroded in humid air, and the development of corrosion is reported to be related to the material species and the atmosphere [4,5].…”

Section: Introductionmentioning

confidence: 99%

Corrosion Measurement of the Atmospheric Environment Using Galvanic Cell Sensors

Yang

Mei

Wang

2019

Sensors

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An atmospheric corrosion monitor (ACM) is an instrument used to track the corrosion status of materials. In this paper, a galvanic cell sensor with a simple structure, flexible parameters, and low cost was proposed for constructing a novel ACM, which consisted of three layers: the upper layer was gold, used as the cathode; the lower layer was corroded metal, used as the anode; and the middle layer was epoxy resin, used to separate the cathode and anode. Typically, the anode and epoxy resin were hollowed out, and the hollow parts were filled with electrolyte when it was wet to form a corrosive galvanic cell. Specifically, the corrosion rate was obtained by measuring the short circuit current of the cell. The sensor was made of a printed circuit board (PCB) or flexible printed circuit (FPC) and a metal coupon, which allowed for early control of the electrical parameters (including sensitivity and capacity) and could be combined with various metals. Additionally, the sensor feasibility was studied in water droplet experiments, during which the corrosive current changed with the electrolyte evaporation. The sensor practicability was also verified in a salt spray test, and the electric charge was compared using the thickness loss of bare coupons. A contrast test was also conducted for the corrosivity of different sensors made of aluminum, iron and copper.

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“…In the literature, a variety of indirect and non-destructive testing techniques [6] are proposed to estimate the condition of a power component. Traditionally, the moisture content has been estimated by using the chemical analysis of oil.…”

Section: Introductionmentioning

confidence: 99%

Estimation of water content in a power transformer using moisture dynamic measurement of its oil

2017

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Careful monitoring of high voltage equipments and diagnosing the critical conditions before they lead to a disaster are prerequisites of condition-based maintenance. Moisture content in a transformer is regarded as one of the major factors in diagnosing its conditions. It causes many problems for a power transformer including electrical breakdown between either its windings or one winding with neutral, increase in the amount of partial discharge and sundry minor problems. Since paper insulation of a power transformer carries large portion of water content, determining moisture content in this part of the transformer is essential. However, the problem is that the direct measurement of moisture in paper is impossible. Therefore, various methods have been proposed to measure the moisture content in a transformer but each one has its limitations. In this study, an approach is introduced to measure water content in a transformer by analysing the moisture dynamics in oil, tracking its variations and analysis of parameters such as temperature, without necessity of disconnecting the transformer from the power grid. High Voltage

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

Cited by 17 publications

References 13 publications

Study of Failure Mode and Effect Analysis (FMEA) on Capacitor Bank Used in Distribution Power Systems

Study of Failure Mode and Effect Analysis (FMEA) on Capacitor Bank Used in Distribution Power Systems

Corrosion Measurement of the Atmospheric Environment Using Galvanic Cell Sensors

Estimation of water content in a power transformer using moisture dynamic measurement of its oil

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