How to choose an inverter!

Create Date: 2024-8-30 12:03:23|Source: Eaton/Eaton

With the trend of rapid development of the industrial economy, the performance of domestic inverters is becoming more and more mature, and the types are innumerable, although most of them have passed the test of the market, but there are still some manufacturers to imitate the fake to disrupt the market order. The characteristics of domestic inverters are actually similar in appearance, which makes it difficult to distinguish the quality of inverters, and it is easy to be deceived in the purchase process.

First, the appearance of the inverter

What affects the choice is the impact of people's visual senses, and the novel appearance and unique streamlined body seem to be more attractive. Such an enclosure design is costly and requires a huge amount of energy and capital investment from the enterprise. This requires us to distinguish the strength of the manufacturer from the observation of the shell template of the inverter, and the material of the shell, flame retardant value and other details can roughly judge the cost of the inverter, so as to know the quality of the inverter.

Second, the internal structure of the inverter

Whether the circuit board layout inside the shell is user-friendly is an important factor related to the practicability of the inverter, for example, the inside of some inverters is particularly difficult to open, and in case of failure, it is very troublesome to open and repair. Not only that, the workmanship of the circuit board can also be seen at a glance: whether it is a machine patch, whether there is a conformal coating, how many layers of the circuit board, whether there is virtual soldering, whether there are copper wires interspersed back and forth on the circuit board, etc., which can see the strength of an enterprise in the design and layout of the circuit board, and a bad layout will bring hidden dangers to the inverter.

3. Inverter software testing

After changing the parameters, the inverter is modulated within 5Hz to see whether the torque of the load motor is weakened, to see whether the motor speed is uniform, and then to observe the output waveform of the inverter, and there is a short period of frequent start and stop to see the peak of current and voltage, these methods can test the performance of the inverter software.

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