Electroslag furnace transformer

Overview of Electroslag Furnace Transformer
Electroslag furnaces are used for remelting and refining steels produced by ordinary smelting methods, and they generally adopt single-phase power supply.

Applications of Electroslag Furnace Transformer
It is specially used as the power supply for electroslag furnaces in the production of aviation bearing steel, superalloys, resistance alloys, precision alloys, certain non-ferrous metals, etc. It can also be used to produce large high-quality alloy steel ingots, large slab ingots or slabs, and other special shaped castings.

Structural Features of Electroslag Furnace Transformer
Electroslag furnace transformers are all without reactors. Unlike arc furnace transformers used in electroslag metallurgy and electric arc steelmaking, when arcing and slag forming are carried out by directly using electrodes plus auxiliary steel scraps, there is an arc only in the initial stage. After slag forming is completed, it turns into an essentially arc-free electroslag process, which continues until the end of smelting. Therefore, the transformer for electroslag furnace power supply requires a low no-load voltage and a small impedance voltage.

The low-voltage side of the electroslag furnace transformer must have voltage regulation levels. The voltage regulation methods include: 1. No-excitation off-load voltage regulation; 2. Excited off-load voltage regulation; 3. On-load voltage regulation. Regardless of the voltage regulation method adopted, the adjustment is performed through the switch on the high-voltage coil.