The inverter itself is a source of interference. To effectively mitigate this interference transmitted through the power lines to other electrical components, the most effective method is proper grounding. The purpose of grounding is to exclude this noise (induced by electromagnetic fields), as it cannot be eliminated; otherwise, it will wander around, leading to malfunctions.

Insufficient cross-sectional area of the power line, particularly the grounding wire, fails to effectively discharge induced electricity.

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

Using the neutral wire as the live wire causing the electric cabinet to leak electricity

Damage to the power line sheath caused a short circuit and leakage of electricity.

The motor insulation has been damaged, causing a grounding short circuit.

2. Wire connection errors, such as misconnecting PE (Protective Earth) and N (Neutral), leading to leakage occurrences.

3. False alarms caused by strong interference from surrounding areas.

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