Electrical resistance preheating of high-amperage cells

At present, there is no single opinion on which cell preheating method is best. In most cases, such a method (that is to be chosen for a smelter) is chosen based on a number of objective and subjective factors. It is often when a method is chosen that power expenses (either electricity or power generated from fuel combustion) for such a method are not taken into account. However, it can play a crucial role for different regions and influence the production cost of Al. This paper discusses the results of testing the method of electrical preheating in a pilot cell area (RA-400 cells) at OJSC RUSAL Sayanogorsk.