1. A study on high-voltage substation ground grid integrity measurement
- Author
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Kostić, Vojin and Raičević, Nebojša
- Subjects
010302 applied physics ,Engineering ,business.industry ,Ground ,020209 energy ,Electrical engineering ,Energy Engineering and Power Technology ,High voltage ,02 engineering and technology ,Interference (wave propagation) ,Grid ,01 natural sciences ,Field (computer science) ,Conductor ,0103 physical sciences ,Grounding grid ,0202 electrical engineering, electronic engineering, information engineering ,Metering mode ,Integrity of the grounding grid ,Electrical and Electronic Engineering ,business ,Telecommunications equipment ,Grounding - Abstract
The condition of thesubstationgrounding grid is vital for the safety of the people. Inadequate grounding may cause failures in majorsubstation's equipment, as well as in control, metering and telecommunication equipment. Therefore, it is necessary to clearly identify damaged elements on grounding grid. This paper presents an approach to test the integrity of the grounding grid in a general framework of IEEE Std. 81-2012. More precisely, in order to locate damaged grounding riser(s) and/or grounding grid conductor(s), this paper is focused on novel unambiguous criteria for post-processing of raw-data collected from the measurements. In order to avoid the effect of power frequency interference on the measurement, we use DC test current of 100A. The field test is described and discussed in details. The outcome of field test clearly shows the validity and feasibility of the proposed approach.
- Published
- 2016
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