Busbar Joint Temperature Versus Applied Currents

[tien67]

Derivations/formulae/Calculations for busbar joint temperature subject to different applied currents. Busbar joint consists of two rectangular busbars are bolted together at each end of the two rectangular plates- one on each side of the joint. Busbars and plates are made of the same materials (copper). The aim is to find out the steady state temperature of the joint at different applied currents. Can assume the busbars are of the same dimensions with each other and so the same for the plates. Hope some one have done/known this problem and greatly appreciate to receive further advice

 

[jbartos]

Suggestion: Reference:
1. ANSI/IEEE Std C37.23-1987 "American National Standard Guide for Metal-Enclosed Bus and Calculating Losses in Isolated-Phase Bus"
includes:
1. Conductor Operating Temperature
Maximum Temperature Limit of Hottest Spot C
Bus Conductor with Plain Connection Joints 70C
Bus Conductor with Silver, or equivalent
Contact Surfaces 105C
The amps will depend on the bus type, material, bus profile, etc.

 

[cuky2000]

Check if the enclose info could help.

http://www.hsa.e-technik.tu-muenchen.de/hsaver/02/Schoft_ICEC2002_1.PDF

http://www.cda.org.uk/megab2/elecapps/pub22/sec7.htm#7. Jointing of Copper Busbars

 

[jbartos]

Suggestion: Visit

http://www.pvdijk.com/images/21thicecconference.pdf

etc. for more info