Abstract
This paper deals with the variations of capacitance and loss angle occurring in precision capacitors used for measurement purposes. The degree of accuracy required in current practice is discussed, and compared with the performance of available instruments. The causes of variation are discussed with relation to time, humidity, temperature, frequency, voltage and screening. The properties of materials used in capacitor construction are discussed in relation to the foregoing variables. Special attention is given to the less well-known causes of change in capacitance and loss angle, and also to experimental difficulties which lead to errors in the measurement of these quantities. In particular, attention is directed in an Appendix to an apparently unrealized source of error in loss-angle measurements on samples with a guard ring.
Talk to us
Join us for a 30 min session where you can share your feedback and ask us any queries you have
More From: Journal of the Institution of Electrical Engineers - Part II: Power Engineering
Disclaimer: All third-party content on this website/platform is and will remain the property of their respective owners and is provided on "as is" basis without any warranties, express or implied. Use of third-party content does not indicate any affiliation, sponsorship with or endorsement by them. Any references to third-party content is to identify the corresponding services and shall be considered fair use under The CopyrightLaw.