Title :
Experiments of power cable diagnosis by using isothermal relaxation current method
Author :
Ueyama, Tsuyoshi ; Mori, Takayoshi ; Suenaga, K.
Author_Institution :
JFE Steel Corp., Kurashiki, Japan
Abstract :
Power cable diagnosis using isothermal relaxation current (IRC) method has been carried out on the under-grounded XLPE cables, and the results were compared with high voltage DC leakage current (HVDC) method, residual charge measuring (RCM) method. The results of IRC method were correspond with the other method´s results generally, and the estimated breakdown voltage calculated from the IRC method was equivalent with actual breakdown voltage. IRC method seems to be comparable to RCM method in accuracy. IRC method is more advantageous diagnosis method to run safely, quickly and economically. It is an economical way since cable system owners can attempt by themselves without giving stress to their cables.
Keywords :
XLPE insulation; charge measurement; electric breakdown; power cable insulation; stress analysis; IRC method; RCM method; advantageous diagnosis method; breakdown voltage estimation; cable stress; cable system; isothermal relaxation current method; power cable diagnosis; residual charge measuring method; under- grounded XLPE cables; Condition monitoring; Conferences; IRC method; XLPE cable; depolarization current; power cable; residual charge; un-bridged water tree;
Conference_Titel :
Condition Monitoring and Diagnosis (CMD), 2012 International Conference on
Conference_Location :
Bali
Print_ISBN :
978-1-4673-1019-2
DOI :
10.1109/CMD.2012.6416232
