Title :
Influence of frequency, electrode material and superimposed dc on ac electroluminescence in polymer films
Author :
Cissé, L. ; Teyssedre, G. ; Mary, D. ; Laurent, C.
Author_Institution :
Lab. de Genie Electr., Univ. Paul Sabatier, Toulouse, France
fDate :
2/1/2002 12:00:00 AM
Abstract :
Summarizes new results on the influence of some experimental parameters on ac electroluminescence (EL) of polymers used as insulating materials in electrical engineering. Electroluminescence under a uniform ac field is investigated in low density polyethylene (PE) and polyethylene naphthalate (PEN) films with semi-transparent electrodes on both sides. Particular emphasis is given to polyethylene. The dependence of EL on the voltage frequency is investigated in the range of 10-2 Hz to 10+2 Hz with the help of phase-resolved measurements. The influence of the electrode/polymer contact is investigated by changing the electrode material (gold, silver, and calcium). The effect of a superimposed dc bias on the ac voltage is also reported
Keywords :
ageing; electroluminescence; insulation testing; polyethylene insulation; polymer films; trees (electrical); 10-2 to 102 Hz; ac electroluminescence; degradation rate; electrical aging; electrical engineering; electrical treeing; electrode material; insulating materials; low density polyethylene; phase-resolved measurements; polyethylene naphthalate; polymer films; semi-transparent electrodes; voltage frequency; Dielectrics and electrical insulation; Electrical engineering; Electrodes; Electroluminescence; Frequency; Plastic films; Plastic insulation; Polyethylene; Polymers; Voltage;
Journal_Title :
Dielectrics and Electrical Insulation, IEEE Transactions on
