Title :
Dielectric response of cable accessories and its influence on cable diagnostics
Author :
Amyot, N. ; David, É ; Fournier, D. ; Jean, D. ; Lalancette, D.
Author_Institution :
Hydro-Quebec, Varennes, Que., Canada
Abstract :
In this paper, dielectric measurements performed on unaged, field-aged and artificially damaged cable joints are reported. All cable joints, but the unaged, were characterized with respect to their discharge inception and extinction voltages. Various types of unaged indoor and outdoor cable terminations were also analysed. Both time domain (TDS) and frequency domain dielectric spectroscopy (FDS) were performed at various voltage levels up to 1.5U0.
Keywords :
XLPE insulation; ageing; cable jointing; electric connectors; ethylene-propylene rubber; partial discharges; power cable insulation; power cable testing; time-frequency analysis; trees (electrical); artificially damaged cable joints; cable accessories; cable diagnostics; cable equivalent length; cable performance; cable reliability; dielectric measurements; dielectric response; discharge extinction voltage; discharge inception voltage; extruded distribution cables; field-aged cable joints; frequency domain dielectric spectroscopy; global cable ageing assessment techniques; imaginary capacitance; indoor cable termination; nonlinearity factor; outdoor cable termination; polymer-insulated power cable systems; time domain dielectric spectroscopy; unaged cable joints; water-trees; Aging; Dielectric losses; Dielectric measurements; Electrochemical impedance spectroscopy; Frequency; Partial discharges; Performance evaluation; Power cables; Power system reliability; Voltage;
Conference_Titel :
Electrical Insulation and Dielectric Phenomena, 2002 Annual Report Conference on
Print_ISBN :
0-7803-7502-5
DOI :
10.1109/CEIDP.2002.1048827
