Title :
Design and control philosophy of a 19 kV, 500 Hz accelerated cable ageing system
Author_Institution :
Walmet Technol. (Pty) Ltd., Vaal Univ. of Technol., Vereeniging, South Africa
Abstract :
The long term ageing problems associated with XLPE-insulated cables, specifically water tree ageing, forced the industry to take steps that will ensure cable manufacturers use the best grade (water tree retardant) insulation material. One of the tests that is now enforced as part of a Type Test is the accelerated ageing test at either 50 Hz for two years or at 500 Hz for four months. The high test voltage and high test frequency required for the tests poses some design and operating problems.
Keywords :
XLPE insulation; ageing; life testing; power cable insulation; trees (electrical); XLPE-insulated cables; accelerated ageing test; accelerated cable ageing system; cable manufacturers; frequency 500 Hz; long term ageing problems; type test; voltage 19 kV; water tree ageing; water tree retardant insulation material; Aging; Cable insulation; Frequency control; Frequency conversion; Inductors; Resonant frequency; Standards;
Conference_Titel :
High Voltage Engineering and Application (ICHVE), 2014 International Conference on
Conference_Location :
Poznan
DOI :
10.1109/ICHVE.2014.7035501
