Abstract
Since SF6 gas insulated power apparatus like gas insulated switchgears (GIS) have been widely used in high and middle voltage substations for electric power transmission and distribution, it is strongly needed to enhance the operational reliability of the apparatus.1 for example, insulation defects like metallic particles in GIS would be a cause of partial discharge (PD) and could lead to dielectric breakdown (BD).2 Thus, for the stable operation of GIS, it is very important to diagnose the insulation condition in service and to predict the BD using PD detection techniques.3-5 Therefore, it is crucial to clarify the PD mechanism in SF6 and to develop the BD prediction technique in GIS. Under ac voltage application, however, space charges generated by PD show complicated behavior and have an influence to PD themselves, due to the temporal change of the instantaneous value and the polarity of applied voltage.6 Thus, it is important to investigate the PD mechanism under ac voltage application. From these points of view, we have investigated the PD characteristics under ac voltage application in SF6 gas.
This is a preview of subscription content, log in via an institution to check access.
Access this chapter
Tax calculation will be finalised at checkout
Purchases are for personal use only
Preview
Unable to display preview. Download preview PDF.
References
S. Yanabu, Y. Murayama and S. Matsumoto, SF6 Insulation and its Application to HV Equipment, IEEE Trans. on Elect. Insul., Vol.26, No.3, pp.358–366 (1991).
R. Baumgärtner, et al., Partial Discharge — Part IX: PD in Gas-Insulated Substation — Fundamental Considerations, IEEE Elect. Insul. Magazine, Vol. 7, No. 6, pp. 5–13 (1991).
T. Utsumi, et al., Preventive Maintenance System with a Different Gas Injecting Facility for GIS, IEEE Trans. on Power Delivery, Vol. 8, No. 3, pp. 1107–1108 (1993).
H. Muto, et al., Frequency Spectrum Due to Standing Waves Excited by Partial Discharges in a GIS, Froc, of the 10th Int. Symp. on High Voltage Eng., Vol. 4, pp. 179–182 (1997).
M.D. Judd, O. Farish and J.S. Pearson, UHF Couplers for Gas-insulated Substations: a Calibration Technique, IEE Proc. of Sci. and Meas. Tech., Vol. 144, No. 3, pp. 117–122 (1997).
R.J. Van Brunt, et al., Mechanisms for Inception of DC and 60-Hz AC Corona in SF6, IEEE Trans, on Elect. Insul., Vol. 17, No. 2, pp. 106–120(1982).
I. Gallimberti and N. Wiegart, Streamer and Leader Formation in SF6 and SF6 Mixtures under Positive Impulse Conditions: II. Streamer to Leader Transition, J. Phys. D: Appl. Phys., Vol.19, pp.2363–2379 (1986).
W. Pfeiffer, et al., Analysis of Prebreakdown Phenomena in SFs in Non-uniform Gaps for Very Fast Transient Voltage Stress Using Electro-optical Diagnostics, 11th Int. Conf. on Gas Dis. and Their Appl., pp.II-92-95 (1995).
V. Zengin, et al., Analysis of SF6 Discharge by Optical Spectroscopy, Gaseous Dielectrics VI, pp.595-599 (1991).
Author information
Authors and Affiliations
Editor information
Editors and Affiliations
Rights and permissions
Copyright information
© 1998 Springer Science+Business Media New York
About this chapter
Cite this chapter
Okubo, H., Takahashi, T., Yamada, T., Hikita, M. (1998). Discrimination of Streamer / Leader Type Partial Discharge in SF6 Gas Based on Discharge Mechanism. In: Christophorou, L.G., Olthoff, J.K. (eds) Gaseous Dielectrics VIII. Springer, Boston, MA. https://doi.org/10.1007/978-1-4615-4899-7_36
Download citation
DOI: https://doi.org/10.1007/978-1-4615-4899-7_36
Publisher Name: Springer, Boston, MA
Print ISBN: 978-1-4613-7221-9
Online ISBN: 978-1-4615-4899-7
eBook Packages: Springer Book Archive