A Dedicated Device Based on the Spatial Electric Field for Measuring Voltage of Catenary System

Abstract:

The traditional high-voltage electroscope is difficult to distinguish normal catenary voltage and induced voltage. In order to solve the problem, a method to measure high-voltage based on the effect of space electric field is proposed and a dedicated catenary voltage measuring device is made. The method follows divider effect of spatial capacitance and achieves quantitative voltage measurement without grounding by measuring and transforming the induced voltage difference of the capacitance which is placed between the catenary system and the earth and showing the actual catenary voltage value in LCD. The device can effectively distinguish catenary normal voltage and induced voltage, then reflects catenary real operation state. The field test results show the device meets the requirement of catenary voltage measurement.

• Periodical: Applied Mechanics and Materials (Volume 734)
• Pages: 109-112
• DOI: https://doi.org/10.4028/www.scientific.net/AMM.734.109
• Online since: February 2015
• Authors: Jia Song*, Xiao Dong Zhang, Yue Jia Sun
• Keywords: Catenary System, Effect of Space Electric Field, Quantitative, Voltage Measurement

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