MEASUREMENT SYSTEM APPLIED TO ENERGIZED SUBSTATIONS GROUNDING GRIDS DIAGNOSIS |
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| E. C. T. Macedo, L. V. Gomes, G. V. de Andrade Jr. , A. D. Dias, E. G. da Costa, R. C. S. Freire, M. S. Castro |
- Abstract:
- This paper presents the development of a system (hardware and software) applied to the evaluation of high voltage (HV) substations energized grounding grids. The diagnosis system is based on the measurement of the HV substation surface potentials. The measurement allows the identification and localization of eventual grounding problems (high values of ground resistivity, corrosion, discontinuity). The system hardware was developed using a PIC® microcontroller that perform the measurement of several surface potentials and stores the measured values in a digital memory. In the sequence, the stored values are transferred to a personal computer, where a developed software, based on finite differences method perform the analyses of the measured data. The obtained results are presented in form of text rapports and 2 and 3-dimensional graphics.
- Keywords:
- Grounding grid diagnosis, Surface potentials, Finite difference method
- Download:
- IMEKO-TC4-2011-055.pdf
- DOI:
- -
- Event details
- IMEKO TC:
- TC4
- Event name:
- TC4 Symposium 2011
- Title:
XVIIIth IMEKO TC4 International Symposium on Measurement of Electrical Quantities (part of Metrologia2011, together with IX International Congress on Electrical Metrology - IX SEMETRO)
- Place:
- Natal, BRAZIL
- Time:
- 27 September 2011 - 30 September 2011