Title :
Abatement of injection currents in propylene carbonate
Author :
Dittrich, Wolfgang ; Hill, Herbert ; Kinzel, Elke
Author_Institution :
Forschungslab. fuer Elektrofluidmech., Muenchen, Germany
Abstract :
The voltage/current characteristic in propylene carbonate shows an exponential rise of current above 100 kV/cm, due to charge injection at the electrode/liquid interface. Possible means to abate this injection were investigated, and experimental results are presented. Abatement of injection currents is an essential condition for the use of high-permittivity liquids (e.g., propylene carbonate) as fluid dielectrics in electrostatic machines. A large number of experimental series have been performed which show the possibility of field-induced passivation
Keywords :
electrical conductivity of liquids; high field effects; machine insulation; materials testing; organic insulating materials; passivation; polymers; charge injection; electrode/liquid interface; electrostatic machines; experimental results; exponential rise of current; field-induced passivation; fluid dielectrics; high-permittivity liquids; injection current abatement; injection currents; propylene carbonate; voltage/current characteristic; Current measurement; Dielectric devices; Dielectric liquids; Electrodes; Electrostatic measurements; Passivation; Permittivity; Shape; Time measurement; Voltage;
Conference_Titel :
Conduction and Breakdown in Dielectric Liquids, 1990. ICDL 1990. Conference Record., 10th International Conference on
Conference_Location :
Grenoble
DOI :
10.1109/ICDL.1990.202882
