Title :
On-line partial discharge diagnostic system in power cable system
Author :
Ahmed, Nazar ; Srinivas, Nagu
Author_Institution :
DTE Energy Technol. Inc., Farmington Hill, MI, USA
Abstract :
An online partial discharge diagnostic system is presented in this paper. The system is capable of detecting a PD event in a power cable system as low as 1 pC. Coupling to the system is made through special sensors that utilize inductive and capacitive coupling. These sensors have a detection bandwidth of 100 kHz to up to 300 MHz. The online PD system indicates location of the insulation anomaly both longitudinally and radially in a cable. Furthermore, the system is applicable to both laminar (PILC) and extruded (PE, XLPE, EPR) cables
Keywords :
electric sensing devices; insulation testing; partial discharge measurement; power cable insulation; power cable testing; 100 kHz to 300 MHz; PD event detection; capacitive coupling; detection bandwidth; extruded cables; inductive coupling; insulation anomaly location; laminar cables; online partial discharge diagnostic system; power cable insulation testing; Partial discharges; Power cables;
Conference_Titel :
Transmission and Distribution Conference and Exposition, 2001 IEEE/PES
Conference_Location :
Atlanta, GA
Print_ISBN :
0-7803-7285-9
DOI :
10.1109/TDC.2001.971350
