At present, the performance of domestic inverters is becoming more and more mature, with a wide range of types, which dazzles the candidates, Many brands have been tested by the market, but some brands have been imitated to disturb the market. One of the characteristics of domestic brands is that the appearance of a domestic brand is similar to that of an imported brand, and that of a domestic brand is similar to that of another domestic brand. This makes people unable to see the inner and inner details of a brand, and it is easy for people to choose It's time to make the wrong judgment.

This requires us to have a unique insight in the selection of frequency converter, carefully observe the external process and internal strength of the inverter. Identification method of frequency converter:

First of all, the inverter gives a visual impact on the appearance, just like the mobile phone, it has a first impression. A good inverter has a novel appearance and a unique streamlined body, which seems to have more tension. This kind of shell design needs shape design, mold opening and layout of internal components. In mass production, the cost is already very high, and the general imported brand inverter enterprises will invest a lot in this aspect. For example, ABB frequency converter is very slender, Fuji inverter is very wide, Siemens inverter is very heavy, all have their own characteristics.

But the domestic inverter brand does not have the strength to invest in these improvements, so that the domestic brand at a glance is square and upright, no discernibility. This requires us to carefully observe which brand of abrasives the shell template is opened, and whether it is the obsolete model, we can distinguish the potential of this manufacturer. In fact, the appearance is not the most important, but the workmanship can see the strength of a brand, the material of the shell, the flame retardant value and other details. You can roughly distinguish the cost. Take apart the shell to see whether the layout of the circuit board inside is reasonable, and whether the steps of opening the shell and circuit board are humanized. How can you open and repair some frequency converters without screws.

Circuit board can also be seen at a glance, whether it is a machine chip, whether there are three anti paint, circuit board several layers, whether there is false soldering, whether there is copper wire back and forth inserted in the circuit board, all of which can see the strength of an enterprise in circuit board design and layout. Bad layout will also bring hidden trouble to the frequency converter. It will directly affect the service life of the frequency converter to see whether the module of the frequency converter is imported brand and how large the current value of the module is. There is also the capacitor of the frequency converter, whether the capacity is enough, and whether the brand is a big brand. These will also affect the performance of the frequency converter. Finally, look at the design of the air duct and air duct of the frequency converter Reasonable, the cooling capacity of the frequency converter can be greatly improved, otherwise, the frequency converter will be prone to frequent failures.