How to deal with the protection tripping when the transformer is charging?

When the transformer is charging, protection tripping is a common fault. This situation may have a serious impact on the power system, so it needs to be dealt with in time. This article will introduce you to the reasons, processing methods and preventive measures for the protection action of the transformer to trip when charging.

1. Reasons for protection tripping

1. Grid fault: such as grid short circuit, fault arc, etc., which may cause the transformer's protection to trip.

2. Internal faults of the transformer: For example, short circuit, open circuit, poor contact and other problems in the transformer winding. These faults will make the transformer unstable, leading to protection tripping.

3. Charging current is too large: If the charging current is too large, it may cause the transformer to be overloaded during charging, causing the protection to trip.

4. Maintenance issues: If the transformer has not been maintained and inspected for a long time, deteriorated insulation materials and aging equipment may cause the transformer to malfunction, causing protection tripping.

2. How to deal with protection action tripping

1. Confirm the cause of the fault: First, you need to determine the cause of the protection action tripping. During the inspection, the fault should be determined as accurately as possible properties so that correct measures can be taken.

2. Prepare maintenance tools and equipment: When the cause of the fault is confirmed, corresponding maintenance tools and equipment need to be prepared to ensure that the fault is completely resolved.

3. Determine the maintenance method: According to the cause of the fault, determine the corresponding maintenance method, such as replacing damaged equipment, repairing windings, overhauling insulation materials, etc.

4. Safety measures: When performing maintenance, safety regulations should be strictly observed and corresponding safety measures should be taken, such as cutting off the power supply, wearing personal protective equipment, and taking measures to prevent electric shock, etc.

5. Testing and debugging: After the maintenance work is completed, necessary testing and debugging should be carried out to ensure that the equipment can operate normally.

3. Preventive measures for protective action tripping

1. Regular inspection and maintenance: Transformers must be inspected and maintained regularly. Regular inspections can detect problems early, avoid failures, and extend the service life of the equipment.

2. Strengthen equipment protection: When using transformers, the normal operation of the equipment should be ensured, and the monitoring and protection of the equipment should be strengthened to avoid damage to the equipment caused by external faults.

3. Enhance power system stability: Improving the stability of the power system can reduce the possibility of transformer protection tripping caused by grid faults.

4. Improve the insulation level: The insulation level is very important for the normal operation of the transformer. Measures such as strengthening the quality of insulating materials can ensure the insulation level.

5. Choose the correct charging method: Choosing the correct charging method can avoid protection tripping caused by excessive charging current.

Conclusion

It is a very common fault that the protection action of the transformer is tripped when charging. When this happens, timely and accurate measures need to be taken to deal with it. Through the introduction of this article, I believe everyone has a deeper understanding of the causes, treatment methods and preventive measures of protection tripping. In order to extend the life of equipment and ensure the safe and stable operation of the power system, we should strengthen equipment management, improve insulation levels, conduct regular inspections and maintenance, enhance power system stability, and other measures to ensure that the power system can operate healthily and orderly.