Test evaluation for life cycle investigation of Wayside lightning arrester in electric railway

Han, Moonseob; Jang, Dong Uk; Kil, Gyung-Suk

doi:10.1109/icems.2005.202956

Cited by 1 publication

(1 citation statement)

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“…In this paper, a simplified V-i r characteristic for unaged MO valve element is selected from the reference [3 ], but according to the real resistive current, the formula is modified. The sirnplified curve is a multi-segment exponential representation; the exponential representation is given by: (1) 18…”

Section: Modeling Of Metal Oxide Valve Elementsmentioning

confidence: 99%

Modeling and Simulation of MOSA Including Stray Capacitance to the Ground

Liu

2012

2012 Asia-Pacific Power and Energy Engineering Conference

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Metal Oxide Surge Arresters (MOSA) degrade in service under the working voltage, on-line measurement of the resistive current of MOSA is an effective method for judging the status of MOSA. In general, the measurement principle of the known detector doesn't consider the effect of the stray capacitance. In this paper based on a known non-liner v-i r mathematical model of the metal oxide valve element, a model of a MOSA including 7 metal oxide valve elements with stray capacitance to the ground is constructed. Through carrying out EMTP, the voltage and current characteristic of the MOSA is simulated. The simulation result shows the presence of stray capacitance leads to a non-uniform voltage distribution and the different phase shift of the voltage of the different MO valve element comparing with the applied voltage, the current wave shape distortion of the capacitance of the MO valve element. Based on the simulation result and adopting the known measurement method, measurement error will be produced

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Section: Modeling Of Metal Oxide Valve Elementsmentioning

confidence: 99%

Modeling and Simulation of MOSA Including Stray Capacitance to the Ground

Liu

2012

2012 Asia-Pacific Power and Energy Engineering Conference

View full text Add to dashboard Cite

show abstract

Test evaluation for life cycle investigation of Wayside lightning arrester in electric railway

Cited by 1 publication

References 2 publications

Modeling and Simulation of MOSA Including Stray Capacitance to the Ground

Modeling and Simulation of MOSA Including Stray Capacitance to the Ground

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