Method and device for ascertaining the state of the lining of induction furnaces

摘要

Measuring method for ascertaining the state of the lining of induction furnaces whose coils are arranged in Scott connection, the currents of the base and the upper coils flowing through the trough furnace being measured proportionately using a current convertor and the geometrical sum or difference of these currents or currents proportional to them being determined on the primary side of sum current convertors by direct or opposite connection. <IMAGE>