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On-line partial discharge diagnostic system in power cable system

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2 Author(s)
Ahmed, N. ; DTE Energy Technol. Inc., Farmington Hill, MI, USA ; Srinivas, N.

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

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Transmission and Distribution Conference and Exposition, 2001 IEEE/PES  (Volume:2 )

Date of Conference: