Electricity: measuring and testing – Impedance – admittance or other quantities representative of... – Distributive type parameters
Reexamination Certificate
2007-11-06
2007-11-06
Benson, Walter (Department: 2858)
Electricity: measuring and testing
Impedance, admittance or other quantities representative of...
Distributive type parameters
C324S547000, C324S551000, C324S553000
Reexamination Certificate
active
11445078
ABSTRACT:
Method and device for measuring a dielectric response of an electrical insulating system, wherein a first measurement result is determined by a frequency domain method and a second measurement result is determined by a time domain method, whereupon the first measurement result and the second measurement result are combined to form an overall measurement result as the dielectric response. Standard types of measurement methods, for example the FDS and PDC methods, may be used as measurement methods for the frequency domain and the time domain.
REFERENCES:
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Zaengl, Dielectric spectroscopy in time and frequency domain for HV power equipment. I. Theoretical considerations; In: Electrical Insulation Magazine, IEEE, 19(5):5-19 (2003).
Fuhr et al., Experience with diagnostic tools for condition assessment of large power transformers; In: Electrical Insulation 2004. Conference Record of the 2004 IEEE International Symposium on 2004, pp. 508-511.
A. Helgeson, “Dielectric Properties of Machine Insulation Studied with Dielectric Response”, Kungl Tekniska Högskolan, ISSN 1100-1593, Chapter 6, p. 112, May 12, 1997.
A. Helgeson, “Dielectric Response Measurements in Time and Frequency Domain on High Voltage Insulation with Diferent Response”, International Symposium on Electrical Insulation Materials, Toyohashi, Japan, pp. 393-398, Sep. 27-30, 1998.
A. Helgeson, “Analysis of Dielectric Response Measurement Methods and Dielectric Properties of Resin-Rich Insulation During Processing”, Kungl Tekniska Högskoln, ISSN 1100-1593, Chapter 4, pp. 55-57, Apr. 28, 2000.
Borsi Hossein
Gockenbach Ernst
Krüger Michael
Benson Walter
Corless Peter F.
Dole Timothy J
Edwards Angell Palmer & & Dodge LLP
O'Day Christine C.
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