Inverters are inherently sources of interference. To mitigate this interference transmitted through power lines to other electrical components, an effective solution is to implement proper grounding. The purpose of grounding is to exclude this noise (induced by electromagnetic fields) from the system. If it cannot be excluded, it will wander around, of course, leading to faults.

A: Insufficient cross-sectional area of the power line, especially the grounding wire, which fails to dissipate induced electricity.

The entire ground wire is live, not only failing to exclude but also reversing phase into the circuit.

C. Using the live wire as the neutral wire causes the electrical cabinet to leak current

D Damage to the power line jacket caused a short circuit and leakage.

1. Motor insulation is damaged, causing a ground short circuit.

2. Wiring errors, such as misconnecting PE and N, resulting in leakage.

3. False alarms caused by strong interference from the surroundings.

4. The grounding wire is not properly connected, or the grounding resistance is insufficient.