Title :
Electric circuit theoretical insulation diagnosis for XLPE power cables
Author_Institution :
Mitsubishi Cable Ind. Ltd., Saitama, Japan
Abstract :
The author is studying an insulation diagnosis system for XLPE power cables by applying an AC voltage on test specimens to detect frequency signals lower than the AC frequency, and has found that signals are generated not only by insulation defects. This paper discusses the new concept that signal sources in the test voltage pass through deteriorated parts of insulation and defective parts more easily. The origin of the signal and how it functions are discussed based on electric circuit theory
Keywords :
XLPE insulation; circuit theory; insulation testing; partial discharges; power cable insulation; power cable testing; signal detection; trees (electrical); AC voltage; XLPE power cables; defective parts; deteriorated insulation; electric circuit theory; frequency signals; generation mode detection; insulation defects; insulation diagnosis; partial discharge; signal sources; transmission mode detection; water tree deterioration; AC generators; Cable insulation; Circuit testing; Dielectrics and electrical insulation; Frequency; Insulation testing; Power cables; Signal detection; System testing; Voltage;
Conference_Titel :
Electrical Insulating Materials, 1995. International Symposium on
Conference_Location :
Tokyo
Print_ISBN :
4-88686-047-8
DOI :
10.1109/ISEIM.1995.496564
