Study on the self-integration of a Rogowski coil used in the measurement of partial discharges pulses

Study on the self-integration of a Rogowski coil used in the measurement of partial discharges... The maintenance of high-voltage power systems requires the determination of the amplitude and waveforms of fast current pulses that commonly occur in electric equipment. These high-frequency pulses may arise from different sources being partial discharges one of the most important events measured to determine the insulation status of electrical assets. This paper is a step forward in the modelling of Rogowski coils, which are commonly used to measure these pulses. This study was performed by means of a simplified model based on lumped electrical parameters. The model was simulated in Simulink and validated by measuring partial discharges (PD) in two different electrical insulation systems. The validation corroborates that the electrical model can be used to study the time and frequency responses of Rogowski coils with different number of turns and dimensions to obtain a configuration that fits the needs of the designer concerning the type of pulses that she/he wishes to measure. The paper also hints that changing the geometric parameters of the coil can be determinant to simplify the integration of pulses, so the Rogowski coil can be used to measure other type of pulses with different frequency spectra, such as lightning strikes, electrical arcs and post-arc phenomena, switching operations of circuit breakers and gas-insulated switchgears and electromagnetic pulses in general. http://www.deepdyve.com/assets/images/DeepDyve-Logo-lg.png Electrical Engineering (Archiv fur Elektrotechnik) Springer Journals

Study on the self-integration of a Rogowski coil used in the measurement of partial discharges pulses

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Publisher
Springer Journals
Copyright
Copyright © 2016 by Springer-Verlag Berlin Heidelberg
Subject
Engineering; Electrical Engineering; Power Electronics, Electrical Machines and Networks; Energy Economics
ISSN
0948-7921
eISSN
1432-0487
D.O.I.
10.1007/s00202-016-0456-4
Publisher site
See Article on Publisher Site

Abstract

The maintenance of high-voltage power systems requires the determination of the amplitude and waveforms of fast current pulses that commonly occur in electric equipment. These high-frequency pulses may arise from different sources being partial discharges one of the most important events measured to determine the insulation status of electrical assets. This paper is a step forward in the modelling of Rogowski coils, which are commonly used to measure these pulses. This study was performed by means of a simplified model based on lumped electrical parameters. The model was simulated in Simulink and validated by measuring partial discharges (PD) in two different electrical insulation systems. The validation corroborates that the electrical model can be used to study the time and frequency responses of Rogowski coils with different number of turns and dimensions to obtain a configuration that fits the needs of the designer concerning the type of pulses that she/he wishes to measure. The paper also hints that changing the geometric parameters of the coil can be determinant to simplify the integration of pulses, so the Rogowski coil can be used to measure other type of pulses with different frequency spectra, such as lightning strikes, electrical arcs and post-arc phenomena, switching operations of circuit breakers and gas-insulated switchgears and electromagnetic pulses in general.

Journal

Electrical Engineering (Archiv fur Elektrotechnik)Springer Journals

Published: Oct 13, 2016

References

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