Mechanical aspects of electrical treeing in solid insulation

1996 ◽  
Vol 12 (2) ◽  
pp. 21-26 ◽  
Author(s):  
B.R. Varlow ◽  
D.W. Auckland
Keyword(s):  
Electrical Treeing ◽  
Solid Insulation

scholarly journals Propagation of Electrical Trees under the Influence of Mechanical Stresses: A Short Review

2019 ◽  
Vol 9 (1) ◽  
pp. 3750-3756
Author(s):  
M. Danikas ◽  
D. Papadopoulos ◽  
S. Morsalin
Keyword(s):  
Short Review ◽  
Mechanical Stresses ◽  
Insulating Materials ◽  
Electrical Trees ◽  
Electrical Treeing ◽  
Solid Insulation

The present paper deals with the phenomenon of electrical treeing in solid insulation, under the influence of mechanical stresses. In this short review, it is indicated that mechanical stressing can affect the propagation of electrical trees and –depending on whether it is tensile or compressive- it can facilitate (or render more difficult) the breakdown. In aged insulating materials, electrical trees can appear very quickly and can lead to breakdown.

Solid insulation drying of 110 kV paper-oil instrument transformers

2009 ◽  
Vol 25 (25) ◽  
pp. 35-38 ◽  
Author(s):  
Gerards Gavrilovs ◽  
Sandra Vītoliņa
Keyword(s):  
Temperature Regulation ◽  
Drying Method ◽  
Instrument Transformers ◽  
Conventional Drying ◽  
Solid Insulation

Solid insulation drying of 110 kV paper-oil instrument transformersInfluence of moisture on the instrument transformers' paper-oil insulation and its further maintenance is described in this paper. Improved insulation drying method using vacuum and temperature regulation with definite regulation algorithm of parameters is proposed and analyzed by comparing it with conventional drying method.

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