POWER QUALITY MONITORING INSTRUMENT FOR ENERGY DISTRIBUTION FEEDER

J. N. Garcez, U. H. Bezerra, A. L. S. Castro, W. J. F. Lima, J. H. M. Maciel, M. N. Moscoso, K. Tenório, A. A. A. Tupiassú, J. E. Mesquita

Abstract

This paper reports a power quality monitoring instrument to be integrated in the electric energy distribution network of CELPA, the electric utility of Belem – Para – Brazil. The instrument, based on a 68HC11 microcontroller collects data at custumer service entrance locations on the feeder, recording both triggered and sampled data voltage signal, wich are processed by a Real Time Executive that manages several tasks, enabling the calculation of ANEEL (Brasilian Electricity Regulatory Agency) continuity and conformity indicators. The utility has evaluated the monitoring instrument in a pilot project with good results, assuring low cost, high performance, reliability and capability of integration with the Energy Distribution Control Center.

Keywords

power quality, energy distribution, monitoring instrument, quality indicators

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DOI

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IMEKO TC

TC4 - Measurement of Electrical Quantities

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