Test data on electrical contacts at high surface velocities and high current densities for homopolar generators

Conference · Sat Jan 01 04:00:00 EST 1977

OSTI ID:5153980

Brennan, M; Tolk, K M; Weldon, W F; Rylander, H G; Woodson, H H

Test data is presented for one grade of copper graphite brush material, Morganite CMlS, over a wide range of surface velocities, atmospheres, and current densities that are expected for fast discharge (<100 ms) homopolar generators. The brushes were run on a copper coated 7075-T6 aluminum disk at surface speeds up to 277 m/sec. One electroplated copper and three flame sprayed copper coatings were used during the tests. Significant differences in contact voltage drops and surface mechanical properties of the copper coatings were observed.

• Research Organization: Texas Univ., Austin (USA). Center for Electromechanics
• OSTI ID: 5153980
• Report Number(s): CONF-771029-121
• Country of Publication: United States
• Language: English

Related Subjects

70 PLASMA PHYSICS AND FUSION TECHNOLOGY
700203* -- Fusion Power Plant Technology-- Power Supplies
Energy Storage
CARBON
COATINGS
COPPER
ELECTRIC CONTACTS
ELECTRIC GENERATORS
ELECTRICAL EQUIPMENT
ELECTRONIC EQUIPMENT
ELEMENTS
EQUIPMENT
GRAPHITE
MECHANICAL PROPERTIES
METALS
NONMETALS
PERFORMANCE TESTING
POWER SUPPLIES
REFERENCE THETA PINCH REACTOR
TESTING
THERMONUCLEAR REACTORS
TRANSITION ELEMENTS