Leakage current monitoring of insulators exposed to marine and industrial pollution

Kanashiro, Arnaldo Gakiya; Burani, Geraldo Francisco

doi:10.1109/elinsl.1996.549334

Cited by 16 publications

(2 citation statements)

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“…Failures in the transmission lines are mainly due to the flashovers [1]- [3]. It is necessary to develop the measurement system which capable of monitoring and characterizing the main features of the leakage current flowing on a polluted insulator string of a high-voltage transmission line [1]- [10].…”

Section: Iintroductionmentioning

confidence: 99%

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: Iintroductionmentioning

confidence: 99%

An Evaluation of Techniques for monitoring the High Voltage Insulator Pollution

Kadam¹,

Patil²,

Patil³

et al. 2015

IJERT

View full text Add to dashboard Cite

show abstract

“…Although this current is only a few tens of milliamperes, when multiplied by the total number of insulators located in that particular transmission line, the total leakage current can reach so high values that can trigger over current protection devices leading to electrical power line interruption. When an electric arc occurs, it is called "flashover", leading occasionally to the destruction of the whole insulator [Kanashiro and Burani, 1996]. An optoelectronic sensor for real time leakage current monitoring of high-voltage (500kV) power lines insulators was developed as a continuation of a study presented on the 2003 POF Conference .…”

Section: Application Of a Pof-based Current Sensor For Measuring Leakage Current In 500 Kv Transmission Line 321 Introductionmentioning

confidence: 99%