1. After the inverter is repaired, the power number needs to be corrected, don't forget it
Generally, an inverter corresponds to a power number (also known as the number of horsepower), for example, a 75 kilowatt inverter is set under heavy load, and 100 kilowatts is set under light load. In this way, customers will not show a mismatch phenomenon when using it.
Some inverters are set at the factory or even forget to set the power number, which ultimately leads to the incorrect use of the customer's site. In fact, after the repair of each inverter, we must pay attention to check whether the parameters set meet the needs of customers. This cannot be ignored.
2. The waveform test must not be less
The waveform test focuses on testing whether the driver board and the inverter components are outstanding, and the test process is measured under high-voltage DC transmission.
3. Screw fastening check can not be ignored
The danger of loosening the screws should not be underestimated. For example, the loosening of the three-phase input and output terminals can lead to the unevenness of the three-phase input and output, and even burn out the terminal row in the state of high current, and even cause load damage due to lack of phase.
The loosening of the grounding screw can lead to poor grounding and increase the contact resistance. It shows the phenomenon of fire ablation.
In summary, these links are the easiest to ignore, and once they are ignored, the consequences are more serious. Since similar problems have been presented in the ordinary production process, it is necessary to make a good empirical analysis. Don't touch on similar issues again.
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