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- Rafael Aliceda Ferraz, Sostenes G. M. Oliveira, Alan H. F. Silva, Jose W. L. Nerys, Aylton Jose Alves, Wesley P. Calixto
- 2015 CHILEAN Conference on Electrical…
- 2015

This paper presents a device that is able to reproduce atmospheric discharges in a small scale. First, there was simulated an impulse generator circuit that could meet the main characteristics of the common lightning strokes waveform. Later, four different generator circuits were developed with the selection made by a microcontroller. Finally, the output… (More)

- Uyara F. Silva, I. Q. Manoel, Geovanne P. Furriel, Alan H. F. Silva, Aylton Jose Alves, Wesley P. Calixto
- 2015 CHILEAN Conference on Electrical…
- 2015

The purpose of this work is to calculate the Surge and Swab pressures on oil wellbore wich has eccentricity between the drill column and the well. An analysis of the couette phenomenon is performed, in which the fluid is confined between two eccentric cylinders. The conformal mapping is used to turn the eccentric domain in the concentric domain, since the… (More)

- Alana S. Magalhaes, C. A. Leovir, +4 authors Wesley P. Calixto
- 2015 CHILEAN Conference on Electrical…
- 2015

This work proposes itself through mathematical modeling, simulating the electrical interactions between two electrical generators, an induction generator and a synchronous generator connected to a common bus in steady state, subject to non-linear load. By comparing the modeling of the two machines, we can see that the induction generator will present best… (More)

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