Sharing of Maintenance Strategies and Practical Experience for Power Transformers

Sharing of Maintenance Strategies and Practical Experience for Power Transformers

1、 The Importance of State Maintenance of Power Transformers

As the core equipment in the power system, the operation status of power transformers directly affects the stability and safety of the entire power system. Therefore, regular maintenance of power transformers, timely detection and handling of potential faults, is a key measure to ensure the normal operation of transformers, extend their service life, and improve power supply reliability.

2、 State maintenance strategy for power transformers

1. Daily inspection strategy

Daily inspection is the foundation of transformer condition maintenance, mainly including the inspection of routine items such as transformer appearance, oil level, oil temperature, and sound. Through daily inspections, abnormal conditions of transformers can be detected in a timely manner, providing important basis for subsequent status maintenance.

2. Preventive strategies

The preventive strategy mainly involves regular testing and inspection to detect potential faults and hidden dangers in transformers in advance. For example, chromatographic analysis of transformer oil can determine whether there are faults such as overheating and discharge inside the transformer. The implementation of preventive strategies helps to avoid sudden transformer failures and improve power supply reliability.

3. Targeted strategies

The targeted strategy mainly refers to the targeted maintenance and handling of faults or abnormal situations that have already occurred in transformers. For example, for faults such as transformer winding deformation and insulation aging, corresponding maintenance measures need to be taken to restore the normal operation of the transformer.

3、 Sharing of Practical Experience in State Maintenance of Power Transformers

1. Adequate preparation work is necessary

Before conducting transformer maintenance, sufficient preparation work must be done. This includes developing detailed maintenance plans, preparing necessary maintenance tools and equipment, ensuring the safety and skill level of maintenance personnel, etc. Adequate preparation work can improve maintenance efficiency and quality, ensuring the smooth progress of the maintenance process.

2. Emphasize data analysis and comparison

During the maintenance process of transformers, a large amount of testing and inspection data will be generated. By analyzing and comparing these data, the operating status and fault type of the transformer can be more accurately determined. Therefore, maintenance personnel need to master certain data analysis skills in order to better utilize this data to provide support for maintenance work.

3. Pay attention to details and techniques

Transformer maintenance involves multiple stages and details, and maintenance personnel need to pay attention to details and skills to ensure the accuracy and effectiveness of maintenance work. For example, when conducting insulation resistance testing, it is necessary to pay attention to the influence of humidity and temperature in the testing environment on the test results; When conducting oil quality testing, attention should be paid to the selection of sampling location and sampling method.

4. Establish comprehensive maintenance records and archives

Establishing comprehensive maintenance records and archives is an important component of transformer condition maintenance work. By recording and archiving, it is possible to timely understand the historical operation and maintenance records of transformers, providing important references for subsequent maintenance work. At the same time, it also helps to improve the standardization and normalization level of maintenance work.

4、 Conclusion

State maintenance of power transformers is a key measure to ensure their normal operation, extend their service life, and improve power supply reliability. By formulating reasonable maintenance strategies, mastering effective practical experience, and establishing comprehensive maintenance records and archives, transformer condition maintenance work can be carried out more effectively, providing strong guarantees for the stable operation of the power system.