Is it better to use silicon steel sheet for motor?
It depends on the suitability of the motor. Theoretically, the lower the iron loss is, the higher the grade is, the better the performance is, and the magnetic induction intensity (magnetic sense) is high under the strong magnetic field, which reduces the volume and weight of the iron core of the motor and transformer. But in fact, the lower grade of iron loss is not suitable for medium and small-sized motors. Generally 35W300 or above brands are used for large generators, inverter air conditioning compressors, reactors and other products. Such as low grade 50WW800 is suitable for only small and medium-sized motors. Steel mills produce high and low grades and are designed according to their applicability.
The iron loss is lower, higher grade, better performance, and strong magnetic induction magnetic field (magnetic field) is high, the volume and weight of the motor and transformer core is reduced, saving the silicon steel sheet, copper wire and insulation materials, at no-load obviously small no-load current, saving energy, reducing heat and temperature L.So performance can be improved.
Obviously, 35W300 has lower iron loss than 35W440 silicon steel sheet.
35W300 means: 0.35 mm in thickness, and the loss value of silicon steel sheet per kilogram is 300 watts (iron loss in industry). The value of iron loss is the most important index to judge the quality of silicon steel sheet. Each country in the world is divided into grades according to its iron loss.
According to the design of the motor, the motor and the use of the environment, generally the smaller the value of the corresponding iron loss no-load loss is low, it is not easy to burn, high efficiency motor is to choose this kind of relatively low iron loss of silicon steel sheet for rotor.
