A facility for electrical contact resistance measurement

Maheshappa, HD and Nagaraju, J and KrishnaMurthy, MV (1998) A facility for electrical contact resistance measurement. In: Review of Scientific Instruments, 69 (3). pp. 1534-1536.

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Abstract

A test facility was developed for directly measuring the electrical contact resistance of switch gear contacts of real sizes under different environmental conditions and contact pressures. It can measure contact resistance to an order of one-tenth of a mu Omega. It sources a constant current in the order of mA and hence avoids Initial arcing across contacts, Experiments were conducted on brass-brass samples with different contact pressures and the results are in agreement with published theoretical calculations.

Item Type:	Journal Article
Publication:	Review of Scientific Instruments
Publisher:	American Institute of Physics
Additional Information:	Copyright of this article belongs to American Institute of Physics.
Department/Centre:	Division of Physical & Mathematical Sciences > Instrumentation Appiled Physics
Date Deposited:	19 Jul 2009 08:29
Last Modified:	19 Sep 2010 04:58
URI:	http://eprints.iisc.ac.in/id/eprint/17878

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