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

Author

Braunovic, Milenko

Author_Institution

MB Interface, Montreal, Que., Canada

Volume

25

Issue

4

fYear

2002

fDate

12/1/2002 12:00:00 AM

Firstpage

642

Lastpage

650

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

contact resistance; current distribution; electric connectors; lubrication; substations; surface treatment; HV power connectors; bolted high-power connectors; connection design; contact interface; contact resistance; enlarged contact area; high power overlapping bolted joints; lubrication; overlapping bolted/pad joints; substation components; 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

Journal_Title

Components and Packaging Technologies, IEEE Transactions on

Publisher

ieee

ISSN

1521-3331

Type

jour

DOI

10.1109/TCAPT.2003.809108

Filename

1178768