Title :
The influence of stray capacitance on wet tracking of polyester resin
Author :
Alghamdi, A.S.G. ; Auckland, D.W. ; Hon, Fook Khong ; Varlow, B.R.
Author_Institution :
Manchester Univ., UK
Abstract :
The authors investigated a means of possibly increasing the resistance to wet tracking. It is based on the supposition that dry band formation can be likened to the abrupt interruption of an electrical circuit by a switch. An arc is formed in this instance as in the breakdown of a dry band. It is proposed that methods used to suppress contact arcing and damage in a switch can be applied with equal validity to the suppression of dry band arcing and its damaging effect on surfaces. The energy in a switching transient can be removed from the sensitive contact breaker region by inclusion of capacitance. The influence of capacitance on wet tracking is investigated in the light of this equivalence
Keywords :
dielectric properties of solids; electric breakdown of solids; organic insulating materials; polymers; surface discharges; abrupt interruption; arc; breakdown; dry band formation; electrical circuit; influence of stray capacitance; polyester resin; polymer insulation; switch; switching transient; wet tracking;
Conference_Titel :
Dielectric Materials, Measurements and Applications, 1992., Sixth International Conference on
Conference_Location :
Manchester
Print_ISBN :
0-85296-551-6
