How to maintain and maintain box substations

As a key piece of equipment in the power system, the stable operation of Box-type substations is of great significance for ensuring the continuity and safety of power supply. Therefore, regular maintenance and servicing of box-type substations is particularly important. This article will provide a detailed introduction to maintenance and servicing strategies for box-type substations, with the aim of extending equipment life, improving operational efficiency, and ensuring the stable operation of the power system.

1. Daily Inspection and Cleaning
Routine inspections are the foundation of maintenance for box-type substations. Inspection personnel should conduct regular inspections of the substation, checking that all components are in good condition and free from abnormal noises or vibrations. Additionally, attention should be paid to monitoring equipment temperatures to prevent failures caused by overheating. Cleaning work is also crucial; dust and debris within the substation should be regularly removed to maintain equipment cleanliness and dryness, preventing operational issues caused by accumulated contaminants.

2. Maintenance of Electrical Components
Electrical components are the core part of box-type substations, and their maintenance is crucial. Circuit breakers, isolating switches, load switches, and other electrical components should be inspected regularly to ensure that they operate smoothly and make good contact. Any components that are worn or damaged should be replaced or repaired in a timely manner. In addition, cable connections should be inspected to ensure that they are secure and free of looseness.

3. Maintenance of the cooling system
The cooling system of a box-type substation is crucial to ensuring the normal operation of the equipment. The working status of components such as cooling fans and radiators should be checked regularly to ensure that they are functioning properly. Any faults in the cooling system should be repaired promptly to prevent the equipment from overheating due to poor heat dissipation.

4. Monitoring of insulation performance
Insulation performance is an important guarantee for the safe operation of box-type substations. The insulation performance of equipment should be tested regularly, including measurements of insulation resistance, dielectric loss, and other indicators. Equipment with deteriorating insulation performance should be dealt with in a timely manner to prevent accidents caused by insulation failures.

5. Inspection of Lightning Protection and Grounding Systems
Lightning protection and grounding systems are important measures for ensuring the safe operation of box-type substations. Lightning protection devices should be inspected regularly to ensure that they are in good working order and effectively grounded. At the same time, the connections of the grounding grid should be inspected to ensure that the grounding resistance meets requirements. Any problems discovered should be addressed promptly to prevent equipment damage or safety accidents caused by lightning strikes or poor grounding.

6. Establish Maintenance and Inspection Records  
To better manage the maintenance and inspection of box-type substations, maintenance and inspection records should be established. These records should detail the time, content, personnel involved, issues identified, and resolution of each maintenance and inspection activity. By establishing and managing these records, it becomes easier to track and analyze the operational status of the equipment, providing a reference basis for future maintenance and inspection work.

In summary, the maintenance and upkeep of box-type substations is a complex and important task. By comprehensively implementing measures such as daily inspections and cleaning, maintenance of electrical components, maintenance of cooling systems, monitoring of insulation performance, inspection of lightning protection and grounding systems, and the establishment of maintenance and upkeep records, the safe and stable operation of box-type substations can be effectively ensured, providing a strong guarantee for the reliable power supply of the power system.