Switching arrangement used for measuring the wear of electrodes immersed in pairs in a glass melt of a glass melting oven comprises a resistance network connected to electrode pairs via a current measuring unit, and calculating units

摘要

Switching arrangement comprises: a resistance network (13) connected to electrode pairs (2a, 2b; 3a, 3b) via a current measuring unit (5); and calculating units (6-11) for calculating the currents and voltages. Preferred Features: The calculating unit (6) calculates the difference between the currents and the voltages. The calculating unit (7) calculates the optimum immersion depth. The calculating unit (8) stores the dependency of the electrode stream from the immersion depth. The calculating unit (9) calculates the sum of the immersion depths of the electrodes of each electrode pair. The calculating unit (11) calculates the ratio of the voltage on one electrode to the voltage of the other electrode. The calculating unit (10) calculates the insufficient immersion depth of each electrode.