Title : 
Electroluminescence-a technique to detect the initiation of degradation in polymeric insulation
         
        
        
            Author_Institution : 
Nat. Res. Council of Canada, Ottawa, Ont., Canada
         
        
        
        
        
        
        
            Abstract : 
The EL technique is at least two orders of magnitude more sensitive than PD detection and can detect the initiation of polymeric ageing. It can also detect the conversion of a water tree to an electrical tree.
         
        
            Keywords : 
ageing; electroluminescence; insulation testing; organic insulating materials; power cable insulation; trees (electrical); degradation initiation; electrical tree; electroluminescence; polymeric ageing; polymeric insulation; water tree; Cable insulation; Dielectrics and electrical insulation; Partial discharges; Plastic insulation; Polymers; Power transformer insulation; Stress; Thermal degradation; Trees - insulation; Voltage;
         
        
        
            Journal_Title : 
Electrical Insulation Magazine, IEEE