Classifying Faults Locations in Cable Terminations and Investigation of the Faults Reasons

Abstract

Cable termination faults are problematic in electrical networks almost always. Technology has solved problems somewhat, but there are many annual reports about damaged cable terminations. For analyzing the problems, faults in two regional electricity companies are studied. At first step, damaged cable terminations are analyzed statistically and grouped according to their problems. Then, some of the damaged cable terminations are checked to classify vulnerable areas. The investigation is completed by simulation, analysis and study of equivalent circuit. Conclusions underline important points which can be helpful for reducing the damages.

Keywords

• Cable Termination
• Stress Grading
• Assembly Error
• Triple Point
• Insulation Layers
• Partial Discharge.