Voltage Drop in Soderberg Anodes with Vertical Current Feeding of Aluminum Electrolytic Cells as Determined by Industrial Measurements and Model Studies..

Measurements were made of the voltage drop in these anodes by two methods. The first method consists in using specially developed probes in the shape of steel tubes baked into the anode with insulated wires introduced into these tubes, while the second method is based on the use of probes driven directly into the outer surface of the anode. The results of the measurements are compared with theoretical calculations of the voltage drop carried out in an earlier paper. It is found that the previously derived theoretical formulas make it possible to correctly determine the voltage drop and current losses in anodes with vertical current feeding.