Overcurrent Coordination Study of the Electrical System of PDVSA Sur, Barinas

In this paper part of the results of an overcurrent coordination study for the 34.5/13.8-kV system of PDVSA Sur, operational area of Barinas, Venezuela, are presented. After previous load flow and short-circuit calculations, the protective devices of each distribution circuit were analyzed to choose...

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Bibliographic Details
Published in2006 IEEE/PES Transmission & Distribution Conference and Exposition: Latin America pp. 1 - 6
Main Authors Velazco, F.V., Rivas, R.A., Guerrero, N.
Format Conference Proceeding
LanguageEnglish
Published IEEE 01.08.2006
Subjects
Circuit faults
Coordination Time Interval
Current transformers
Fuse
Fuses
Load flow
Oil insulation
Petroleum
Pickup Current
Production
Protection System
Protective relaying
Recloser
Substation protection
Surges
Time Dial
Time-Current Characteristic (TCC) Curve
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Summary:In this paper part of the results of an overcurrent coordination study for the 34.5/13.8-kV system of PDVSA Sur, operational area of Barinas, Venezuela, are presented. After previous load flow and short-circuit calculations, the protective devices of each distribution circuit were analyzed to choose new pickup currents, time-current characteristic (TCC) curves, time dials, and instantaneous settings for the phase-fault and ground-fault protection functions. The new settings improved the times of response of the short-circuit protective devices, the coordination time intervals, and the selectivity and reliability of the system
ISBN:9781424402878
1424402875
DOI:10.1109/TDCLA.2006.311499