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Capacitance and Dissipation Factor

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High Voltage Measurement Techniques

Part of the book series: Power Systems ((POWSYS))

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Abstract

The optimum performance of high-voltage equipment and apparatus of the electrical energy transmission depends largely on the design and quality of the insulating materials and the error-free execution of the insulation. Solid, liquid or gaseous dielectrics, also in combination, are used as insulation material. Important characteristics of the dielectrics that are exposed to high AC or impulse voltages are the relative permittivity and the dissipation factor (dielectric loss factor). This chapter explains the basics of both measurement quantities and the various analog and digital measurement methods. The basic design of measuring devices such as the Schering bridge with and without Wagner’s auxiliary arm, the current comparator bridge and the digital measuring system with A/D converters are discussed. Examples of the calibration of the measuring instruments are given. The properties of compressed gas capacitors according to Schering and Vieweg, which serve as a virtually lossless reference in the measurement of capacitance and dissipation factor, are discussed in detail.

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Authors and Affiliations

  1. Formerly with the Physikalisch-Technische Bundesanstalt Braunschweig und Berlin, Braunschweig, Niedersachsen, Germany

    Klaus Schon

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Schon, K. (2019). Capacitance and Dissipation Factor. In: High Voltage Measurement Techniques. Power Systems. Springer, Cham. https://doi.org/10.1007/978-3-030-21770-9_11

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  • DOI: https://doi.org/10.1007/978-3-030-21770-9_11

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