Diagnostic of silicon carbide surge arresters

Kanashiro, Arnaldo Gakiya; Tatizawa, Hédio; Zanotti, Milton; Obase, Paulo Futoshi; Bacega, Wilson Roberto

doi:10.1109/ichve.2010.5640750

Cited by 4 publications

(5 citation statements)

References 6 publications

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“…The harmonic spectrum of the CLC and RLC components for the tested SAs are illustrated in Figure 6. [6], [10]. Furthermore, one can observe that for the three tested SAs the external CLC and RLC components are much lower than the internal CLC and RLC components.…”

Section: Resultsmentioning

confidence: 99%

“…The SiC SA has some superior electrical characteristics. It has a very high nonlinear resistance under low voltage condition, but a very low resistance to high voltage conduction [5]- [6]. When an over voltage occurs, the SCi resistance breaks down allowing conduction of the internal leakage current (ILC) to ground.…”

Section: Introductionmentioning

confidence: 99%

“…Therefore, the gapless ZnO SAs which exhibit high nonlinear voltage current (V-I) characteristics and faster conduction response for over voltage surges are developed [9]- [11]. The SiC SAs have been replaced by ZnO arresters but a large number of SiC arresters are still operating and in service [6].…”

Section: Introductionmentioning

confidence: 99%

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Internal and External Leakage Current Decomposition of Surge Arresters Using Discrete Fourier Transform

Almomani¹

2019

IJATCSE

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Surge arresters are over voltage protection devices that provide protection to power transmission and distribution systems from over voltages caused by lightning surges, switching operations in power systems and temporary over voltages caused by faults. However, they are subjected to aging due to environmental conditions and overheating. Therefore to avoid catastrophic failures of surge arresters, it is necessary to evaluate their performance either by online monitoring or offline testing of the resistive leakage current which is considered as one of most techniques for assessing the degradation level of surge arresters. This paper presents an efficient technique for decomposition of leakage currents of surge arresters using discrete Fourier transform. The paper aims to decompose the leakage current, either internal or external, into its resistive and capacitive components. After, separating the two current components, the third harmonic resistive current, which is considered an important indicator of SA degradation, is extracted from the resistive current component. In this paper, diagnosis of three different 33 kV, 10 kA distribution-class surge arresters, namely Zinc Oxide Polymeric-, Zinc Oxide Silicon Rubber-and Silicon Carbide Porcelain-housed surge arresters is presented. Both the internal and the external currents were measured for each arrester up to its maximum continuous operating voltage.

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Section: Resultsmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

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Internal and External Leakage Current Decomposition of Surge Arresters Using Discrete Fourier Transform

Almomani¹

2019

IJATCSE

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“…The methodology of the investigation was based on laboratory tests and visual inspection of the internal components of the surge arresters (Kanashiro et al, 2009). The first step of the research was to analyze the characteristics of the SiC surge arresters in service, considering their age, manufacturer, rated voltage, etc.…”

Section: Methodsmentioning

confidence: 99%

Contribution to the Evaluation of Silicon Carbide Surge Arresters

Kanashiro¹,

Zanotti²

2011

Properties and Applications of Silicon Carbide

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“…The application of SPDs can reduce the local over voltages to acceptable limits. Surge arresters are to ensure appropriate insulation coordination and to protect valuable equipment from lightning and switching over voltages [41][42][43][44].…”

mentioning

confidence: 99%

Testing Performance of Low Voltage Arresters

Waluyo¹,

Hutasoit²

2016

JEPE

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Due to important consideration of protection against lightning surge on electrical, electronic and telecommunication equipment, it was necessary to carry out a special study to look at the performance of protective devices. The study was testing performance of arresters on low voltage system. The activity was testing of arresters using steady state and impulse voltages. The arresters consisted of gas tube, zener diode, varistor and spark gap arresters, then it was made a cascade circuit between the varistor and spark gap arresters with a decoupling element. The decoupling elements were used air, iron and ferrite. The test yielded data of current and voltage on the tables and oscilloscope waveforms. The arresters had cut voltages early different from each other, namely the gas tube, zener diode, spark gap and varistor arresters were at the voltages of 500 V, 250 V, 1,000 V and 565 V respectively. The iron core decoupling element cascade circuit had the least oscillation among remaining cores.

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Diagnostic of silicon carbide surge arresters

Cited by 4 publications

References 6 publications

Internal and External Leakage Current Decomposition of Surge Arresters Using Discrete Fourier Transform

Internal and External Leakage Current Decomposition of Surge Arresters Using Discrete Fourier Transform

Contribution to the Evaluation of Silicon Carbide Surge Arresters

Testing Performance of Low Voltage Arresters

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