The inverter itself is a source of interference. To effectively mitigate this interference through the power lines on other electrical components, the key solution is to implement effective grounding. The purpose of grounding is to eliminate this noise (induced by electromagnetic fields) – if it cannot be eliminated, it will wander around, of course, leading to faults.

Insufficient cross-sectional area of the power line, especially the grounding wire, which cannot effectively dissipate induced electricity.

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

C Line used as neutral, causing the electrical cabinet to leak.

Damage to the power line jacket resulted in a short circuit and leakage of electricity.

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

2. Wiring errors, such as incorrectly connecting PE and N, leading to leakage occurrences.

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

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