Improved method for extracting resistive leakage current of surge protectors

Xu, Wanyue; Sheng, Feng

doi:10.1049/joe.2018.9095

Cited by 5 publications

(3 citation statements)

References 6 publications

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“…When an overvoltage disturbance occurs, the resistance of this arrester will be very small so that it will provide a very fast response to drain more current to the ground [4]. A fire jump between the gaps will occur when the incoming discharge current reaches the arrester and the discharge voltage reaches the peak [9].…”

Section: Zno Surge Arrestermentioning

confidence: 99%

“…The degradation experienced by ZnO arresters without gaps occurs gradually under operating voltage, and electrical or mechanical stress and can also be a problem with the ZnO arrester structure becoming damp [19,20]. All of these things can cause an increase in the internal leakage current, especially the resistive component of the arrester [9,21]. The aging rate of the block arrester is affected by the leakage current from the resistive component due to a pure sinusoidal voltage for the fundamental frequency component [3].…”

Section: Zno Surge Arrester Degradationmentioning

confidence: 99%

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External Leakage Current Separation to Determine Arrester Condition Due to Contamination

Novizon,

Mondrizal,

Darwison

et al. 2023

JNTE

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Leakage current measurements can be used to determine the aging condition of the ZnO arrester. The leakage current that occurs in the arrester is divided into two, namely external and internal leakage currents. The external leakage current is affected by contamination and the internal leakage current is affected by the aging of the varistor in the arrester. The external and internal leakage currents are measured separately to determine their contribution to the arrester condition. In this study, the effect of salt contamination on the arrester was studied further. The level of contamination used consisted of low, medium and heavy. The obtained leakage current is analyzed using wavelet energy. The results of this study indicate that the wavelet energy of each leakage current is different and can be used as an indicator in further analysis. The conclusion obtained is that the external leakage current is affected by contamination and has a different energy with the internal leakage current due to aging of the varistor arrester components.

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Section: Zno Surge Arrestermentioning

confidence: 99%

Section: Zno Surge Arrester Degradationmentioning

confidence: 99%

External Leakage Current Separation to Determine Arrester Condition Due to Contamination

Novizon,

Mondrizal,

Darwison

et al. 2023

JNTE

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show abstract

“…Leakage current is the presentation form of the comprehensive effect of complex operating conditions on power equipment, which can represent the key information of the operation status and is convenient for online real-time monitoring [1][2][3]. Leakage current includes resistive current and capacitive current [4,5], with the resistive current only accounting for about 10% of the total current. Although the total leakage current does not obviously increase, the resistive component increases a lot when the equipment fails in the early stages.…”

Section: Introductionmentioning

confidence: 99%

Research on Field Source Characteristics of Leakage Current of Arrester Based on TMR Sensor

Li³

et al. 2023

Sensors

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The status of zinc oxide (ZnO) arresters is directly related to the safety of power grids. However, as the service life of ZnO arresters increases, their insulation performance may decrease due to factors such as operating voltage and humidity, which can be identified through the measurement of leakage current. Tunnel magnetoresistance (TMR) sensors with high sensitivity, good temperature stability, and small size are excellent for measuring leakage current. This paper constructs a simulation model of the arrester and investigates the deployment of the TMR current sensor and the size of the magnetic concentrating ring. The arrester’s leakage current magnetic field distribution under different operating conditions is simulated. The simulation model can aid in optimizing the detection of leakage current in arresters using TMR current sensors, and the findings serve as a basis for monitoring the condition of arresters and improving the installation of current sensors. The TMR current sensor design offers potential advantages such as high accuracy, miniaturization, and ease of distributed application measurement, making it suitable for large-scale use. Finally, the validity of the simulations and conclusions is verified through experiments.

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An Experimental Study to Investigate the Condition of Metal Oxide Surge Arrester under Polluted Environment

Das

Dalai

Chatterjee

2020

2020 IEEE 1st International Conference for Convergence in Engineering (ICCE)

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Improved method for extracting resistive leakage current of surge protectors

Cited by 5 publications

References 6 publications

External Leakage Current Separation to Determine Arrester Condition Due to Contamination

External Leakage Current Separation to Determine Arrester Condition Due to Contamination

Research on Field Source Characteristics of Leakage Current of Arrester Based on TMR Sensor

An Experimental Study to Investigate the Condition of Metal Oxide Surge Arrester under Polluted Environment

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