Results 21 to 30 of about 1,442 (197)
A Metal Oxide Surge Arrester Model with Active V-I Characteristics
Generally a model of Metal Oxide Surge Arrester (MOSA) for numerical analysis uses a nonlinear resistance. But actual Voltage-Current (V-I) characteristics of MOSA have a hysteresis loop in the time domain like the i-Φ characteristic of a transformer and frequency dependency.
Toyohisa Hagiwara +4 more
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Metal oxide surge arresters (ZNO) are used widely in power system to protect equipments from over voltages. Non uniform potential distribution leads to the depressed service life and low safe reliability, so grading ring is applied on HV surge arrester ...
M. Khodsuz, M. Mirzaie
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An Energy Depandent Model of a Metal Oxide Surge Arrester
Soji Kojima +2 more
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Condition Assessment of Metal Oxide Surge Arrester Based on Multi-Layer SVM Classifier
This paper introduces the indicators for surge arrester condition assessment based on the leakage current analysis. Maximum amplitude of fundamental harmonic of the resistive leakage current, maximum amplitude of third harmonic of the resistive leakage ...
M Khodsuz, M Mirzaie
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Metal Oxide (MO) Surge Arresters - Stresses and Test procedures
Fil: Richter, Bernhard. No especifica;
Bernhard Richter +19 more
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this work studies the effect of neutral earth resistance on the controlling ferroresonance oscillation in the power transformer including MOV surge arrester.
H. Radmanesh, M. Rostami
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Aging of metal oxide surge arresters is mainly affected by the high electric stress near the high voltage electrode. It has been observed that the distribution of voltage and electric field along an arrester is non‐uniform.
Nadjim Alti +2 more
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Modern electrical diagnostics for metal oxide surge arresters [PDF]
The aim of this study is to propose simple and reliable techniques to assess the condition of metal oxide arrester based on the dielectric response techniques. A number of modern electrical diagnostics for Metal Oxide Surge Arrester (MOSA) are discussed in this paper. The techniques included return voltage, decay voltage and polarisation/depolarisation
Mardira, K. P., Saha, Tapan K.
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