Title :
Evolution of stress control systems in medium voltage cable accessories
Author :
Strobl, Robert ; Haverkamp, Wolfgang ; Malin, Gerold ; Fitzgerald, Frank
Author_Institution :
Energy Div., Tyco Electron. Raychem GmbH, Ottobrunn, Germany
Abstract :
Underground cable accessories used in medium voltage cable systems need a highly reliable stress control system in order to maintain and control the insulation level which is designed for estimated life times longer than 30 years of service. The term "electrical stress control" refers to the cable termination function of reducing the electrical stress in the area of insulation shield cutback to levels that preclude electrical breakdown in the cable insulation. This paper describes the evolution of stress control systems and their benefits, based on different materials and concepts. The main focus on this paper will be on the unique metal-oxide-matrix stress control system, which has never been attempted before
Keywords :
electric connectors; power cable insulation; underground cables; cable termination function; electrical breakdown; electrical stress reduction; estimated life times; impedance system; insulation level control; insulation shield cutback; medium voltage cable accessories; metal-oxide-matrix stress control system; stress control systems; underground cable accessories; Cable insulation; Cable shielding; Control systems; Dielectrics and electrical insulation; Electric breakdown; Life estimation; Maintenance; Medium voltage; Stress control; Voltage control;
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.2001.971348
