Summary of common causes and countermeasures of inverter
In the input and output circuits of the inverter, in addition to the above-mentioned lower harmonic components, there are many high-frequency harmonic currents, which will transmit their
However, inverters may encounter various faults during operation. This article will introduce the common faults of inverters in detail, including electrical quantity faults, current problems, frequency and voltage problems, internal component faults, grounding faults and other problems, and provide corresponding solutions. 1.
In addition to the above common faults, the inverter may also encounter other problems, such as communication failure, overheating failure, etc. These problems may be caused by various factors such as equipment design, manufacturing process, and use environment. Handling method:
When the system voltage is too high, the frequency inverter may not be able to stop at a numerical point in order to avoid triggering the DC bus over-voltage protection for its own protection. In such cases, it is recommended to connect the transformer taps to 105%.
In order to protect the internal circuit of the inverter, the inverter will report a high temperature fault and shut down. Countermeasures: Reduce the temperature of the place where the inverter is located, such as installing forced cooling measures such as air conditioning or fans. 2. Poor ventilation of the inverter
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