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.

Volume

2

fYear

2005

fDate

21-24 Nov. 2005

Firstpage

1438

Lastpage

1441

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;

fLanguage

English

Publisher

ieee

Conference_Titel

Computer as a Tool, 2005. EUROCON 2005.The International Conference on

Conference_Location

Belgrade

Print_ISBN

1-4244-0049-X

Type

conf

DOI

10.1109/EURCON.2005.1630233

Filename

1630233