Cooled contact connections

Abstract

One of the methods for electrical conductivity of current-conducting wires is decreasing the conductor materials’ active resistance using water or cryogenic cooling. Use of water cooling allows for increasing power and currents of generators and electric apparatuses 4—5 times compared to devices with natural air cooling. Dependencies of single-point and multi-point contacts from various factors at cryogenic and room temperatures are obtained based on the physical and chemical properties of the contact parts, as well as microgeometry analysis. The methods of cooled contact optimization are indicated.