Title :
Analysis of dielectric properties on the basis of a non-conventional measuring procedure
Author :
Lemke, E. ; Schmiegel, P.
Author_Institution :
Lemke Diagnostics, Dresden, Germany
Abstract :
The authors´ work deals with a new procedure for evaluation of the properties of dielectric materials. It is based on a modified bridge circuit for measurement the total charge of partial discharges under AC stresses. In order to apply this method for practical investigations on HV components, a prototype of a dielectric analyzer (DIANA) was developed. Preliminary test results showed that knowledge on dielectric behaviour of electrical insulation can be increased essentially by the new method, compared to the classical power loss factor measurement. Because of the time resolved display of the capacitive and resistive voltage vector even nonlinear phenomena may be detected
Keywords :
dielectric loss measurement; dielectric measurement; digital instrumentation; high-voltage techniques; insulation testing; partial discharges; test equipment; AC stresses; DIANA dielectric analyser; HV components; dielectric materials; dielectric properties; digital display; electrical insulation; insulation testing; modified bridge circuit; nonlinear phenomena; partial discharges; resistive voltage vector; time resolved display; total charge;
Conference_Titel :
Dielectric Materials, Measurements and Applications, 1992., Sixth International Conference on
Conference_Location :
Manchester
Print_ISBN :
0-85296-551-6
