Title :
Cable Overheating in an Industrial Substation Feeder Due to Untransposed Power Cables - Measurement and Simulation
Author :
Gouramanis, K. ; Demoulias, C.
Author_Institution :
Dept. of Electr. & Comput. Eng., Thessaloniki Aristotle Univ.
Abstract :
This paper presents measurements of asymmetrical current distribution among parallel connected cables on the secondary side of 20/0.4kV transformers. Overloading of some cables is shown to lead to premature cable ageing. Simulation of the situation by EMTP shows that simple and affordable cable layout - other than cable transposition - can significantly deteriorate the current asymmetries. The increase in cable temperature and losses as well as the deterioration of cable useful life is calculated for various cable configurations
Keywords :
EMTP; industrial power systems; power cables; power measurement; power system simulation; substations; 20 to 0.4 kV; asymmetrical current distribution; cable layout; cable overheating; cable temperature; cable transposition; current asymmetries; industrial substation feeder; untransposed power cables; Aging; Current distribution; Current measurement; EMTP; Electrical equipment industry; Power cables; Power measurement; Substations; Temperature; Transformers; Cable simulation; EMTP; current distribution; current unbalance; power cables;
Conference_Titel :
Computer as a Tool, 2005. EUROCON 2005.The International Conference on
Conference_Location :
Belgrade
Print_ISBN :
1-4244-0049-X
DOI :
10.1109/EURCON.2005.1630233
