Existing instrument transformer technologies as well as new measuring principles for current and voltage measurement are described in this book. The properties of conventional current and voltage transformer as well as the dimensioning are discussed in details out of the long experience of the authors. Especially the dielectric dimensioning and the used materials are discussed. Beside this an overview over new modern measuring principles is given and the technology of low-power instrument transformer, and RC-dividers are shown.
Inhaltsverzeichnis
Insulation of transformers. - Oil-paper. - Silicone gel and cast resin. - Bushing technology in instrument transformers. - Current measurement conventional, inductive. - Small-signal transformers. - Optical current measurement. - Voltage measurement conventional, inductive and capacitive. - R and RC divider technology. - Quality assurance.
