Title :
Characterisation of partial discharge pulses in artificial voids in polypropylene films used in capacitors
Author :
Ramachandra, B. ; Nema, R.S.
Author_Institution :
Dept. of High Voltage Eng., Indian Inst. of Sci., Bangalore, India
Abstract :
Partial discharges in voids may cause deterioration of solid insulating materials. They often start in voids enclosed in insulation and or at the interface defects. A method of measuring fast discharge pulses with rise times below 1 ns is reported. Characterisation of partial discharge pulses in artificial voids in polypropylene films at atmospheric pressure is analysed that incorporates inception voltage, apparent and real charge, drift velocity and mobility of electrons
Keywords :
electric breakdown; insulation testing; partial discharges; polymer films; power capacitors; voids (solid); PD pulse characterisation; apparent charge; artificial voids; capacitors; drift velocity; electron mobility; fast discharge pulses; inception voltage; insulation breakdown testing; interface defects; partial discharge pulses; polypropylene films; real charge; solid insulating materials; Atmospheric measurements; Dielectrics; Electrodes; Electron mobility; Insulation; Partial discharges; Pulse measurements; Resistors; Solids; Voltage;
Conference_Titel :
Electrical Insulation, 1996., Conference Record of the 1996 IEEE International Symposium on
Conference_Location :
Montreal, Que.
Print_ISBN :
0-7803-3531-7
DOI :
10.1109/ELINSL.1996.549396
