Regular maintenance can effectively ensure the performance and service life of the transformer oil purifier, enabling it to efficiently purify transformer oil and provide strong support for the safe operation of the power system.

I. Reasons for Regular Maintenance

Ensuring Equipment Performance

During long-term operation, various components of a transformer oil purifier may be affected by wear, aging, or blockages, which can impact performance. For example, filter elements may become clogged with impurities, reducing filtration efficiency. The vacuum system may experience insufficient vacuum pressure due to aging seals. Regular maintenance can promptly identify and resolve these issues, ensuring that the equipment remains in good working condition.

Extending Equipment Lifespan

Regular maintenance allows for the timely replacement of worn parts and the cleaning of internal impurities and dirt, reducing the equipment's failure rate. This not only lowers maintenance costs but also extends the equipment's service life, enhancing its cost-effectiveness.

Ensuring Purification Effectiveness of Transformer Oil

The purity of transformer oil is crucial for the safe operation of transformers. If the purifier does not function properly, it may fail to effectively remove moisture, impurities, and gases from the oil, which can affect the transformer's insulation properties and lifespan. Regular maintenance of the purifier ensures its efficient operation and guarantees the safe operation of the power system.

II. Content of Regular Maintenance

Inspecting Filter Elements

Filter Cartridges and Screens: These are the core components of the purifier and need to be regularly checked for blockages or damage. If a large amount of impurities accumulates on the surface of the filter cartridge or screen, it will affect the filtration effect and lead to incomplete purification of the oil. It is recommended to perform a simple cleaning after each use and regularly replace the filter cartridge (generally every 3 - 6 months, depending on the degree of oil contamination).

Checking Filtration Precision: Regularly test whether the filtration precision of the filter elements meets the required standards. If a decrease in filtration precision is detected, the filter elements should be replaced or repaired promptly.

Inspecting the Vacuum System

Vacuum Pump: Check the operating condition of the vacuum pump, including whether the motor is running normally and if the vacuum level reaches the set value. If the vacuum pump produces abnormal noise or the vacuum level is insufficient, it may be due to aging or damaged seals within the pump, which need to be replaced promptly.

Condenser: The condenser is used to cool water vapor, converting it into liquid water for discharge. Regularly check the cooling effect of the condenser and clean the dust and dirt on its surface to ensure its normal operation.

Vacuum Pipelines and Seals: Check for leaks in the vacuum pipelines and aging of the seals. Leaks or damaged seals can lead to a drop in vacuum pressure, affecting the dehydration and degassing effects. Regularly replace the seals to ensure the airtightness of the vacuum system.

Inspecting the Electrical System

Control Panel and Electrical Wiring: Check whether the indicator lights and buttons on the control panel are working normally and if there is any looseness, aging, or short-circuiting in the electrical wiring. Regularly clean the dust from the control panel and electrical cabinet to prevent short circuits or poor contact due to dust accumulation.

Motor and Heater: Check the operating condition of the motor, including its temperature and current. The heater, which is used to heat the oil to facilitate dehydration and degassing, should also be regularly checked for proper heating performance.

Inspecting the Oil Circuit System

Oil Pump: Check the operating condition of the oil pump, including its flow rate and pressure. If the oil pump produces abnormal noise or has insufficient flow, it may be due to wear or blockage of the impeller inside the pump, which needs to be cleaned or replaced promptly.

Oil Pipes and Valves: Check for blockages or leaks in the oil pipes and ensure the valves are flexible. Regularly clean the impurities inside the oil pipes to ensure smooth oil flow.

Oil Tank and Oil Circuit Filter: Check the cleanliness of the oil in the tank and whether the oil circuit filter is blocked. Regularly clean the oil tank and oil circuit filter to prevent impurities from entering the oil.

Cleaning the Equipment

Exterior and Internal Components: Regularly clean the exterior and internal components of the oil purifier to prevent the accumulation of dust and impurities. Use a soft cloth or brush for cleaning and avoid using corrosive cleaning agents.

Working Environment: Maintain a clean and dry working environment for the oil purifier to prevent damage from moisture, high temperatures, or corrosive gases.

Recording Operating Data

Operating Time: Record the operating time of the oil purifier each time it is used to calculate the cumulative operating time of the equipment. Schedule regular maintenance plans based on the operating time.

Oil Processing Volume: Record the volume of oil processed each time to understand the equipment's operating efficiency. If a decrease in processing volume is detected, it may indicate that the equipment's performance is affected and needs to be checked promptly.

Vacuum Level and Temperature: Record the vacuum level and oil temperature during operation to analyze the equipment's operating condition. If abnormal vacuum levels or temperatures are detected, promptly identify the cause and take corrective action.

III. Maintenance Schedule Recommendations

Daily Inspection: Conduct a simple check before and after each use, including the equipment's appearance, whether the filter elements are blocked, and the operating conditions of the vacuum and oil pumps.

Weekly Inspection: Weekly, check the basic operating conditions of the electrical, vacuum, and oil circuit systems, and clean the dust and impurities on the equipment's surface.

Monthly Inspection: Perform a comprehensive check once a month, including the filtration effect of the filter elements, the airtightness and condensation effect of the vacuum system, and the safety of the electrical system.

Quarterly or Semi-Annual Maintenance: Depending on the equipment's usage frequency and the degree of oil contamination, conduct in-depth maintenance every quarter or half a year. This includes replacing worn parts, cleaning the oil tank and oil circuit filter, and calibrating the equipment's operating parameters.

Annual Overhaul: Perform a major overhaul once a year, conducting a comprehensive inspection and maintenance of the equipment. This includes replacing all wear-prone parts, thoroughly cleaning and maintaining the equipment, and testing whether the equipment's performance meets the factory standards.

IV. Maintenance Precautions

Follow Operating Procedures

When performing maintenance operations, it is essential to strictly follow the equipment's operating procedures and safety requirements. For example, when inspecting the electrical system, the power must be disconnected first to ensure the equipment is in a safe state.

Use Appropriate Tools and Materials

During maintenance, use suitable tools and materials that meet the equipment's requirements. For example, when replacing seals, choose high-quality seals that match the equipment to avoid equipment failure due to material issues.

Record Maintenance Details

After each maintenance session, record the content of the maintenance, any issues found, and the measures taken. These records can help analyze the equipment's operating condition and provide references for future maintenance.

Professional Maintenance

For complex maintenance tasks, such as repairing the vacuum system or calibrating the electrical system, it is recommended to have professional technicians perform the operations to ensure maintenance quality and equipment safety.