Computer aided partial discharge testing of thin solid insulation systems

2007 ◽  
Vol 2 (1) ◽  
pp. 51-57 ◽  
Author(s):  
H. Koch ◽  
W. Pfeiffer
Keyword(s):  
Partial Discharge ◽  
Computer Aided ◽  
Insulation Systems ◽  
Solid Insulation

Apparent and True Charges in the Partial Discharge Model at Different Defective Domain Sizes

2021 ◽  
Vol 64 (6) ◽  
pp. 94-100
Author(s):  
Nikolay Ignatev ◽  
◽  
Sergey Tetiora ◽  
Dmitry Turkin ◽  
◽  
...  
Keyword(s):  
Equivalent Circuit ◽  
Partial Discharge ◽  
Diagnostic Value ◽  
Partial Discharges ◽  
Active Resistance ◽  
Air Cavity ◽  
Discharge Ignition ◽  
Discharge Model ◽  
Air Cavities ◽  
Solid Insulation

A model of the partial discharges in a sample of solid insulation with air cavity is presented. The material of the insulation is cross-linked polyethylene. The model is based on an active-capacitive equivalent circuit, in which the resistance of the air cavity at the instant of a partial discharge ignition is shunted by the active resistance of the spark. The model takes into consideration the delay of the discharge development. The evaluation of the diagnostic value of the apparent and true charges is carried out. The results of the apparent and true charges relationship with the dimensions and proportions of the air cavity are presented. It is shown that the same magnitude of both true and apparent charges can correspond to the different volumes and shapes of the air cavities in the insulation.

scholarly journals Partial Discharge Characteristics in Composite Insulation Systems with PPLP for HTS Cable

2014 ◽  
Vol 507 (3) ◽  
pp. 032024 ◽  
Author(s):  
Y Kikuchi ◽  
K Yamashita ◽  
A Kumada ◽  
K Hidaka ◽  
K Tatamidani ◽  
...  
Keyword(s):  
Partial Discharge ◽  
Discharge Characteristics ◽  
Insulation Systems
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