The role of medium frequency electric furnace reactor
The reactor is an indispensable component in the medium frequency electric furnace, which plays the same important role as the capacitor bank, inductor coil, thyristor, main control board, etc. in the medium frequency electric furnace. The reactor increases as the power of the medium frequency electric furnace increases. What are the functions of reactors in medium frequency electric furnaces? The reactor is also called the filter reactor of the medium frequency electric furnace, which is very important for the medium frequency power supply. Generally speaking, the reactor has three functions.
First, make the output current of the medium frequency power rectifier of the medium frequency electric furnace smooth and stable
Second, second, when the medium frequency power supply inverter thyristor is short-circuited, it limits the growth rate of the short-circuit current and the size of the short-circuit current;
Third, and thirdly, the reactor can suppress the rising rate of the medium frequency current.
If the parameter design of the filter reactor is unreasonable, the core material is not good or the manufacturing process is not good enough, it will have a great impact on the working reliability of the medium frequency power supply. In order to ensure that the parameters of the filter reactor of the medium frequency electric furnace are reasonable, Huaxin Electric Furnace has specially developed a filter reactor design software package. The software especially considers the filtering situation of the filter reactor under the condition of parallel inverter. The silicon steel sheet filter reactor of the medium frequency electric furnace reactor adopts cold-rolled high-permeability products, and the copper tube is T2 extruded copper tube, wrapped with high-strength mica tape, with H-class insulation. In order to reduce the working noise of the filter reactor, the silicon steel sheet has adopted a special fastening process, and there is a special buffer sound-absorbing material between the silicon steel sheet and the air gap.