Daily Transformer Maintenance
Time：2024-11-2 Auther：ZTelec-www.ztelectransformer.com
Transformer is the key equipment in the power system. Its performance and stability are very important to the operation of the whole power grid. Therefore, the daily maintenance of the transformer is essential.
First, from a safety point of view, the transformer will be affected by various external and internal factors during operation, such as temperature, humidity, load changes, electrical stress, etc., which may cause its performance to decline or malfunction. Regular maintenance can detect and handle potential safety hazards in a timely manner and prevent accidents and ensure the safety of personnel and equipment.
Second, from an economic point of view, regular maintenance checks can extend the service life of the transformer. By detecting and repairing small breakdowns or wear in a timely manner, greater damage and replacement costs can be avoided. In addition, maintenance can also improve the operational efficiency of the transformer and reduce energy consumption, thus reducing operating costs.
Daily Transformer Maintenance
1.Transformer Oil: Transformers use oil as both an insulator and coolant. Daily inspections require evaluating the oil level and scanning for leaks.
2.Bushings: Bushings provide entry and exit locations for electricity in transformers. Daily checks guarantee that these parts are free of fractures and grime.
3.Cooling System: Keeping a transformer cool is critical. Check the cooling system, which includes fans or pumps, on a daily basis to ensure that it is functioning.
Other maintenance
In addition to daily maintenance, transformers also need monthly maintenance and annual maintenance.
Monthly maintenance:
Some jobs will only need to be performed monthly or quarterly unless needed sooner. For example, you might check the oil’s dielectric strength, top off your oil or check your cable box and terminal bushings for adequate tightness or damage every few months. The bushings should be checked for cracks both once a month and at yearly inspection. Further, you might inspect and clean the transformer’s auxiliary circuits and accessories on a six-month basis.
Create a set of regular intervals to test oil samples for moisture, deterioration, acidity and other signs that your oil needs filtering or changing. You can also either have someone come on-site or send out samples in an air tight syringe for dissolved gas analysis (DGA) which will tell you what kinds of dissolved gases are in your oil. Some of the most commonly found types include acetylene, methane, hydrogen, ethane, ethylene, oxygen and carbon monoxide.
Transformer Annual maintenance:
1.Oil in the transformer (this time check the acidity resistivity, tan delta and sludge. It may need to be filtered or replaced entirely)
2.Oil-filled condenser bushing
3.Gasket joints (may need to be tightened to avoid uneven pressure)
4.Cable boxes
5.Relays alarm and other circuits
6.Earth resistance
Transformer Maintenance precautions
Safety first: Before performing maintenance work, ensure that the transformer is powered off and grounded and strictly follow the safety operation procedures.
Professional operation: Maintenance should be carried out by qualified professionals to avoid accidents caused by misoperation by non-professionals.
Record details: After each maintenance, record the maintenance content, test results, and found problems in detail for follow-up tracking and handling.
Regular plan: According to the operation of the transformer and the manufacturer’s suggestions, make a reasonable maintenance plan to ensure the orderly maintenance work.
