Sensor Network for Monitoring the State of Pollution of High-Voltage Insulators Via Satellite

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

doi:10.1109/tpwrd.2012.2183623

Cited by 32 publications

(29 citation statements)

References 14 publications

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“…For effective system, real-time clock IC is under the investigation. The optical fiber provides electrical insulation & processing module can be installed inside the command room [5]- [6].…”

Section: Fiber Networkmentioning

confidence: 99%

“…The resultant information is send to the satellite via satellite modem [1]. Earth substation receives those packets through the private service network [4]- [6]. Semiconductor temperature sensor & capacitive humidity sensor is used to measure the temperature & humidity respectively.…”

Section: Sensor Network With Satellitementioning

confidence: 99%

“…The output of the all comparators are given to the PIC microcontroller 16F877A.There are four peak levels of leakage current are amplified & detected such as N1, N2, N3 & N4. Each peak level of leakage current has its own limit defined in the standard such as follows:-N1, For Ip >5 mA N2, For Ip >10mA N3, For Ip >20 mA N4, For Ip >40 mA Fig.12.Processing Module [6] In previous experiment, there were only three ranges can be calculated such as N1, N2 & N3 called as lowintensity leakage current, nonaggressive leakage current & high aggressive leakage current respectively. Leakage current is only occurs with its relative high environmental humidity which can be measured with the help of capacitive humidity sensors.…”

Section: Sensor Network With Satellitementioning

confidence: 99%

“…Due to high voltage stress, corona forms the small discharges in the form of light, heat or sound, etc. Under high humidity, the pollutants form conductive, wet and dry regions on the insulator surface [6]. The concentrating the electric field, leading to the creation of partial discharges (PDs) can increase its rate and intensity until a complete discharge from line to ground, known as flashover [2].…”

Section: Iintroductionmentioning

confidence: 99%

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An Evaluation of Techniques for monitoring the High Voltage Insulator Pollution

Kadam¹,

Patil²,

Patil³

et al. 2015

IJERT

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Leakage current monitoring associated with the method for measuring the pollution levels on High Voltage insulator of overhead transmission line. This paper describes the various pollution monitoring techniques of High Voltage insulator such as frequency characterization, patternrecognition, optical detection of partial discharge, sensor system with satellite communication link etc. By using the combinations of sensors, processing techniques & electronics set up, the characteristics of the leakage current can be evaluated. Frequency characterization investigated with artificial contamination tests & field tests. Pattern recognition technique classifies the state of insulation structure in online application. The system comprises a fiber-optic sensor, directly connected to one insulator of the string that emits a sample of the leakage current waveform to a processing module via an optical link. Satellite based monitoring along with the Important results were achieved during the field implantation, mainly related to system design & features that need to be applied during the building of tower with transmission line of High Voltage. Experimental activities & field system records the relevant status of pollution level.

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Section: Fiber Networkmentioning

confidence: 99%

Section: Sensor Network With Satellitementioning

confidence: 99%

Section: Sensor Network With Satellitementioning

confidence: 99%

Section: Iintroductionmentioning

confidence: 99%

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An Evaluation of Techniques for monitoring the High Voltage Insulator Pollution

Kadam¹,

Patil²,

Patil³

et al. 2015

IJERT

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“…Accumulation of pollutants on the surface of high-voltage (HV) insulators is the main reason for the decrease in insulation levels between phase and ground in transmissionline towers [1]. The transmission lines of electrical insulation exposed to open air for long periods lead to solid, liquid and gaseous filthy particle deposition outside the electric insulation surface.…”

Section: Introductionmentioning

confidence: 99%

Sensoring Leakage Current to Predict Pollution Levels to Improve Transmission Line Model via ANN

Khalel¹,

Rahmat²,

Mustafa³

2017

IJECE

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Pollution insulator is a serious threat to the safety operations of electric power systems. Leakage current detection is widely employed in transmission line insulators to assess pollution levels. This paper presents the prediction of pollution levels on insulators based on simulated leakage current and voltage in a transmission tower.The simulation parameters are based on improved transmission line model with leakage current resistance insertion between buses. Artificial neural network (ANN) is employed to predict the level of pollution with different locations of simulated leakage current and voltage between two buses. With a sufficient number of training, the test results showed a significant potential for pollution level prediction with more than 95% Correct Classification Rate (CCR) and output of the ANN showed high agreement with Simulink results.

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