How to solve and prevent leakage in frequency converters

When the frequency converter is in operation, some of the current flows to the ground due to external grounding or excessive grounding resistance, resulting in the current not being able to fully return to the power supply and thus causing leakage. In the process of frequency converter drive motor running, the malfunction is always occurring about the leakage. What are the causes of leakage in a frequency converter? Then how can it be prevented and solved?

1.Main reasons

Equipment aging or damage: Over time, the frequency converter may experience aging or damage, resulting in a decline in insulation performance and the occurrence of leakage.

Environmental usage issues: If the working environment of the frequency converter is filled with excessive dust or foreign objects, it may cause the cables to break and have poor contact, thereby leading to leakage.

Power supply line issues: Problems such as poor contact, aging, and excessive cable temperature in the power supply line can all cause leakage in the frequency converter.

Electrical fault: In the event of short circuits, overloads, overvoltages and other faults, there is also a possibility of causing leakage current.

2.Prevention and resolution

Equipment maintenance: Regularly inspect and maintain the frequency converter equipment, promptly replace aging components, and clean dust and foreign objects. This can effectively reduce the possibility of electric leakage.

Check the power lines: Ensure that the power line connections are correct and secure, and investigate any issues of aging or damage to reduce the risk of electric leakage.

Replacing the frequency converter: If the frequency converter becomes old or malfunctions and is no longer repairable, it is necessary to replace the equipment promptly to ensure the operational performance and safety.