Order Publications

Reference: ISH2015_52

Type:
ISH Collection
Title:

Guide to EHV/HV Cable Sheath Bonding Application Software

 

Abstracts

This paper introduces a software tool for the sheath bonding design of high voltage power cable systems. The calculation tools for the design of the bonding system are required for supplying the maximum value of the temporary overvoltages obtained for the worst short circuit that can appear in the grid. Sheath overvoltages depend on different factors: on the place where a short circuit appears, on the earth resistance value at each grounding connection and on the designed sheath bonding configuration. The software package uses a general method of circuit analysis adapted to cable systems to determine temporary overvoltages in complex sheath bonding configurations. The developed software allows defining any arbitrary architecture of linked elemental cable sections in order to simulate the real sheath bonding configuration. Temporary overvoltages in cable joints, terminations and link boxes are determined in this paper. These values should be used for the correct selection of the sheath voltage limiters used for protection of the outer sheath, joints, terminations and link boxes insulation. An example of two cable systems is analysed to demonstrate that small modifications on the sheath bonding configuration can reduce significantly the temporary overvoltages and permits the viable selection of the surge arresters used for protection.
 

File Size: 259,2 KB

Year: 2015

 
 
 
Download
Member
FREE free
Non member
FREE free
 

Your AccountYour Account

Password forgotten

Members

may download free of charge all publications including most recent ones


Non Members

may download free of charge publications over three years old and purchase all publications

ContactContact

For any questions in connection with the on-line library, contact:


Publications and Editions Manager

publications@cigre.org