Thermal stability of cables metallic covers in the case of double earth faults in middle voltage networks

Author

Budahs, Martins ; Rozenkrons, Janis ; Staltmanis, Armands

Author_Institution

Latvenergo Power Syst., Riga

fYear

2005

fDate

27-30 June 2005

Firstpage

1

Lastpage

5

Abstract

This article discusses about networks designers and operators drawing more attention to thermal stability of cable metallic cover (shield) assuring about it both in the process of maintenance of the existing oil paper insulation cables (lead-covered) and in selecting new cables with plastic insulation (copper cover); In the result of cooperation of Riga Technical University and Latvenergo specialists the methodology has been elaborated on thermal stability testing of the existing cables lead-covered in case of earth fault; this methodology is widely advisable for application.

Keywords

cable shielding; earthing; insulation testing; power cable insulation; power cable testing; power distribution faults; power transmission faults; thermal stability; Riga Technical University; cable metallic covers; cable shield; double earth faults; middle voltage networks; oil paper insulation cables; plastic insulation; thermal stability testing; Cable insulation; Circuit faults; Circuit stability; Circuit testing; Earth; Medium voltage; Power system stability; Protective relaying; Short circuit currents; Thermal stability; Cables Metallic Covers; Double Earth Faults; Thermal Stability;

fLanguage

English

Publisher

ieee

Conference_Titel

Power Tech, 2005 IEEE Russia

Conference_Location

St. Petersburg

Print_ISBN

978-5-93208-034-4

Electronic_ISBN

978-5-93208-034-4

Type

conf

DOI

10.1109/PTC.2005.4524581

Filename

4524581