Title :
The influence of barriers on the penetration of solid insulation by discharges
Author :
Auckland, D.W. ; Kabir, S.M.F. ; Rashid, A. ; Varlow, B.R.
Author_Institution :
Manchester Univ., UK
Abstract :
This work investigates possible correlations between electrical discharge tree growth and the mechanical characteristics and strain associated with additives in resin based composite insulation. It is shown that the resistance presented by a barrier to tree growth is determined by fracture toughness, thermal resistance and work of adhesion. A high work of adhesion prevents interfacial tracking but, as importantly, leads to internal strain which, if compressive, substantially enhances tree resistance
Keywords :
composite insulating materials; discharges (electric); organic insulating materials; polymers; trees (electrical); additives; barriers; electrical discharge tree growth; fracture toughness; interfacial tracking; internal strain; mechanical characteristics; resin based composite insulation; solid insulation; thermal resistance; work of adhesion;
Conference_Titel :
Partial Discharge, 1993., International Conference on
Conference_Location :
Canterbury
Print_ISBN :
0-85296-579-6
