Satellite telemetry system for pollution detection on insulator strings of high-voltage transmission lines

Fontana, Eduardo; Martins-Filho, Joaquim F.; Prata, T. L.; Cavalcanti, Gustavo Oliveira; Lima, Ricardo Ataíde de; Oliveira, Sérgio Campello; Cavalcanti, F. J. M. M.

doi:10.1109/imoc.2009.5427517

Cited by 5 publications

(7 citation statements)

References 11 publications

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“…The system described in [4] is composed by an optical fiber-sensor, an embedded processing module, a photovoltaic power system and a satellite communication link. The optical fiber-sensor comprises a polished off the shelf LED cemented with a multimode optical fiber.…”

Section: Monitoring Systemmentioning

confidence: 99%

“…The sensor system network [4] was installed in six towers located across four states in the northeast region of Brazil. The locations were chosen based on their particular environmental characteristics in order to characterize the different behaviors on each environment.…”

Section: Leakage Current Activitymentioning

confidence: 99%

“…The high concentration of these pollutants surrounded by an environment of high humidity results in conductive paths on the surface of the insulator, contributing to the emergence of partial discharges. According to Companhia Hidro EIetrica do Sao Francisco, CHESF, responsible for the generation and distribution of electrical energy in the northeast region of Brazil, the accumulation of pollutants represents about the third main cause of faults in its transmission lines [3][4][5]. Previous works reported the development of a system for monitoring the pulses on the leakage current signal [3], [4].…”

Section: Introductionmentioning

confidence: 99%

“…According to Companhia Hidro EIetrica do Sao Francisco, CHESF, responsible for the generation and distribution of electrical energy in the northeast region of Brazil, the accumulation of pollutants represents about the third main cause of faults in its transmission lines [3][4][5]. Previous works reported the development of a system for monitoring the pulses on the leakage current signal [3], [4]. Six of these systems were installed in six towers located in four states of northeast region of Brazil.…”

Section: Introductionmentioning

confidence: 99%

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Long term analysis of leakage current pulses registered by an optical sensor network

Silva

Oliveira

Lima

et al. 2013

2013 SBMO/IEEE MTT-S International Microwave &Amp; Optoelectronics Conference (IMOC)

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The loss of insulation capacity caused by pollution deposition on insulator strings can be inferred from the analysis of the electric arcs due to partial discharges on the insulators.The partial discharges also cause pulses superposed to the leakage current signal. An optical sensor system network was developed and installed in the northeast region of Brazil to monitor the degree of pollution deposited over insulator strings of high voltage transmission lines. The monitoring system comprises leakage, humidity and temperature sensors, a processing electronic module and a satellite communication link.They were installed on 230 and 500 kV towers. This paper presents a correlation study comparing the information obtained from the monitoring systems and the electric arc levels obtained by traditional visual inspections. Also the rain events influence the leakage current behavior and a rain pattern recognition system is used in order to better evaluate the leakage current behavior.

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Section: Monitoring Systemmentioning

confidence: 99%

Section: Leakage Current Activitymentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

See 2 more Smart Citations

Long term analysis of leakage current pulses registered by an optical sensor network

Silva

Oliveira

Lima

et al. 2013

2013 SBMO/IEEE MTT-S International Microwave &Amp; Optoelectronics Conference (IMOC)

Self Cite

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“…The method uses an optical sensor with a link of fiber, a micro-computer controlled processing module, a link by satellite, and a solar panel with battery. The most important characteristics obtained from the leakage current signal are stored internally in the micro-controller and it enables to be transmitted through the communication link [6]. Acoustic emissions have been used for several applications in engineering.…”

Section: Introductionmentioning

confidence: 99%

Análisis de correlación entre la contaminación de aisladores cerámicos y emisiones acústicas

Álvarez-Nasrallah¹,

Candelo-Becerra²,

Soto-Ortiz³

et al. 2015

TecnoL.

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La mayoría de los estudios relacionados con la contaminación de aisladores son desarrollados normalmente con base en un análisis individual entre la corriente de fuga, la humedad relativa y la densidad de los depósitos de sal equivalente (ESDD). Este trabajo presenta un análisis de correlación entre la corriente de fuga y las emisiones acústicas medidas en una subestación eléctrica de 230 kV, en la ciudad de Barranquilla, Colombia. Además, se consideraron variables atmosféricas para desarrollar un modelo de caracterización del proceso de la contaminación de los aisladores eléctricos. Este modelo fue utilizado para demostrar que los niveles de emisión de ruido son un indicador fiable para detectar y caracterizar la contaminación en aisladores de alta tensión. La correlación encontrada entre las variables atmosféricas, eléctricas y las de sonido permitieron determinar las relaciones para el mantenimiento de los aisladores cerámicos en zonas de alta contaminación. En este artículo se muestran los resultados de la investigación sobre el comportamiento de la corriente de fuga en aisladores cerámicos y el sonido que se producen ante diferentes condiciones atmosféricas, lo cual permite evaluar el mejor momento para limpiar el aislador en la subestación. Además, mediante experimentación in situ y utilizando modelos estadísticos, se obtuvo la correlación entre las variables ambientales y la corriente de fuga de la subestación. Algunos de los inconvenientes que trae el ruido externo en la medición fueron superados utilizando varios micrófonos y software especializado que permitían filtrar correctamente el sonido y lograr una mejor medición de las variables.

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Remote monitoring of the degree of pollution of high voltage insulator strings via satellite with a sensor system network

et al. 2010

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Satellite telemetry system for pollution detection on insulator strings of high-voltage transmission lines

Cited by 5 publications

References 11 publications

Long term analysis of leakage current pulses registered by an optical sensor network

Long term analysis of leakage current pulses registered by an optical sensor network

Análisis de correlación entre la contaminación de aisladores cerámicos y emisiones acústicas

Remote monitoring of the degree of pollution of high voltage insulator strings via satellite with a sensor system network

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