Effect of connection design on the contact resistance of high power overlapping bolted joints

Author

Braunovic, M.

Author_Institution

MB Interface, Montreal, Que., Canada

fYear

2001

fDate

2001

Firstpage

220

Lastpage

229

Abstract

The effect of design changes on the contact resistance of overlapping bolted/pad joints was investigated. It was found that slanting the edges of the bus-bars/pads under 45° and making slots in the overlapping areas significantly reduce the contact resistance of a joint and improve its mechanical integrity. These improvements are results of enlarged contact area and creation of a uniform current distribution at the contact interface

Keywords

cable jointing; contact resistance; current distribution; design engineering; electric connectors; electrical contacts; substations; bus-bars; connection design; contact interface; contact resistance; enlarged contact area; high power overlapping bolted joints; mechanical integrity; overlapping area slots; overlapping bolted/pad joints; pad edge slanting; substation connectors; uniform current distribution; Conductors; Connectors; Contact resistance; Distributed parameter circuits; Maintenance; Power generation economics; Power transmission lines; Surface contamination; Surface resistance; Switching circuits;

fLanguage

English

Publisher

ieee

Conference_Titel

Electrical Contacts, 2001. Proceedings of the Forty-Seventh IEEE Holm Conference on

Conference_Location

Montreal, Que.

Print_ISBN

0-7803-6667-0

Type

conf

DOI

10.1109/HOLM.2001.953215

Filename

953215