| Title |
Design and Fabrication of Light-Weight Composit Bus Bar |
| Authors |
배준한(Bae Joon-Han) ; 배덕권(Bea Duck-Kweon) |
| Keywords |
Copper ; Aluminum Solenoids ; Composite Bus Bar ; Skin ; Surface Current |
| Abstract |
Copper is widely used in electric wire, cable, conductor in electric devices. As the demand for electric power is increasing rapidly, electric power devices are getting amazingly bigger and complicated. The using of light-weight conductor can reduce the size and making cost of the electric devices. In high-frequency application, Electric current in a conductor tends to shift to the surface of the conductor, resulting in an uneven current distribution in the inner conductor. In the extreme case the current may essentially concentrate in the 'skin' of the inner conductor as a surface current. In high frequency application, therefore, inner area of copper conductor may replace with aluminum conductor, which reduces the weight of conductor. This paper describes the manufacture and evaluation of composite conductors made of copper and aluminum. The optimum extruding ratio was 16 at 300°C. The electrical resistance of manufactured composite bus bar was 57μ{Ω} at DC and 49.5μ {Omega} at 300Hz. |