Usage:Power Phase:Three Coil Structure:Concentric Type:Distribution Transformer Frequency:50/60Hz Material:Copper
Electric furnace transformer refers to a transformer that provides power for various circuits.
1. It is stable, and load fluctuation during production is small;
2. Concentration of heat, high arc temperature, good fluidity of product and slag when it is released;
3. The electrodes have little influence on each other, the electrodes are easy to be inserted, and the bottom of the furnace is not easy to rise;
4. Can consume a part of the powder ore, reducing the particle size requirements of the raw materials;
5. Can produce refractory iron alloy products, such as: high silicon silicon manganese, silicon aluminum alloy, etc.
1.Low mechanical force and good strength
2. Strong winding shock resistance
3.Low impedance
4. Phase-separated voltage regulation has no effect on the magnetic circuit
5, short lead and easy impedance balance
6.Low loss
Industrial electric furnace transformers can be roughly divided into three categories: resistance furnace transformers, arc furnace transformers and induction furnace transformers.
Resistance furnace transformer Resistance furnace and salt bath furnace for heating, heat treatment, powder metallurgy sintering, non-ferrous metal smelting, etc. Because the resistance of the heating element is too small, or the resistance of the heating element changes too much during the heating process, a resistance furnace transformer needs to be provided between the furnace and the power grid to reduce and adjust the input voltage of the heating furnace. Small-capacity, low-voltage resistance furnace transformers and salt bath furnace transformers are mostly dry-type transformers with box shells and naturally cooled; medium-capacity (hundreds to thousands of volt-ampere) resistance furnace transformers are mostly oil-immersed self-cooled transformers ; Large capacity is forced oil circulation water-cooled transformer.
Electric arc furnace transformer Special transformer for electric arc furnace power supply for steel smelting. Large capacity, complex structure and high technical requirements. Its secondary voltage is low, usually from tens of volts to hundreds of volts, and it is required to be adjustable within a wide range; the current of the secondary side often reaches thousands to tens of thousands of amperes. In addition, in the iron and steel smelting, the melting period requires large power, and the transformer is required to have 20% overload capacity within 2 hours. During the steelmaking process, because the collapse of the charge is likely to cause an electrode short circuit, the primary side of the arc furnace transformer should be connected in series with a current-limiting reactor or have a large impedance to limit the short-circuit current.