Baoding oil-immersed transformer is a very important equipment in the power system. It can transmit power, change voltage and isolate insulation. Once the failure of baoding oil-immersed transformer can be said to have a great impact on production, life and safety of electricity. How to make an accurate judgment of transformer faults, and be able to respond to the symptoms, troubleshooting to achieve drug to disease is a very important issue to explore, the following small make up to provide some preliminary understanding.

I. common maintenance items of oil-immersed transformer

The whole equipment of baoding oil-immersed transformer is not big, but it has very complicated structure. It contains a lot of components, each component of the damage will lead to the whole oil-immersed transformer can not work properly. The items requiring overhaul in oil-immersed transformer generally include the removal of each accessory lifting core or lifting cover; Maintenance of oil tank, casing, radiator, safety airway and oil pillow; Maintenance and calibration of gas break appliances and thermometers; Cleaning and inspection of high-altitude porcelain bottles; Replacement of all gaskets and leakage testing of components; Maintenance of oil purifier, respirator, oil pillow capsule, pressure release device, etc. These are relatively difficult maintenance projects. Once they have a breakdown can be said to spend a lot of manpower and material resources to repair and maintenance. Professional and technical personnel are required to follow normative procedures. There are also some minor repair items in the overhaul of oil-immersed transformer, such as: cleaning of shell and valve, dealing with oil leakage; Clean and check casing, and tighten all casing connection bolts; Maintenance of submersible oil pump and cooling fan of cooler; Oil sample analysis and casing, body adjustment of oil level and so on. These maintenance projects are relatively easy, but technicians must not take them lightly. It's the details that make the difference. Even small details determine the normal operation of oil-immersed transformers. Professional personnel should understand transformer often appear fault and the project that need overhaul, such ability can bosom has sufficient when undertaking overhaul, answer freely.

Ii. Preparation before repair of oil-immersed transformer

It is a fundamental requirement for the repair-professionals of baoding oil-immersed transformer to understand the working principle and the internal structure of the transformer itself. Before carrying out maintenance work, the staff must be prepared to analyze possible problems and prepare all kinds of materials and tools needed for maintenance. At the same time, contact welders, scaffolding workers, chemical oil treatment personnel and other staff may be used, let them help to do a variety of work together. The power should be cut off before maintenance, and the transformer should be put in a stop state and adjusted as necessary. The staff should also pay attention to their own clothes and other belongings when repairing, do not wear a lot of ornaments and patterns of clothes, and to ensure safety is not to carry other gadgets, to avoid mistakes or forget and affect the transformer maintenance work. When everything is ready, with knowledge of transformer, skilled technology and skills, and light loading, the staff can start the maintenance work. Of course, in the maintenance process should always keep in mind the "safety first" belief.

Iii. Repair process and standard of oil-immersed transformer

If the maintenance of baoding oil-immersed transformer is a common fault, professional and technical personnel should be able to see it, it will be easy to resolve the problem. But technical professionals can also feel overwhelmed and overwhelmed by difficult problems. Faced with such problems, the staff can check some common maintenance items one by one. For example, some common ratings are normal: rated frequency is not 50Hz, rated voltage is not 535KV high voltage winding, low voltage winding is not 27KV; Is the number of phases a single phase; The label of the connection group is not a three-phase group. The second is the cooler, including the number of cooler. And then you can look at the pressure relief device, and what the pressure relief is; No load tap switch rated current, tap series, short circuit tolerance and so on. In continuous maintenance, the staff will find problems and solve them.

There are certain standards to solve the problems of baoding oil-immersed transformer. Only when the standard is reached can the problems of the transformer be solved smoothly. These standards are also a criterion for repairing transformers. For example, the maintenance of coils: coils need to be kept clean and free of grease, so as to ensure the normal operation of coils. If there is metal debris in the coil, it will cause the coil to jam. At the same time, attention should be paid to whether the coil has displacement or deformation and whether the insulation pads are arranged neatly during maintenance. Only orderly arrangement can ensure good insulation effect. When inspecting the coil, the insulation aging degree should also be evaluated. And the standard that insulation is insulation is full of flexibility, colour and lustre is bright-coloured, show golden color, press with the finger do not have residual deformation. This insulation effect is the best, of course, there are two insulation, three insulation and four seasons insulation. Grade 4 insulation presents a serious embrittlement phenomenon, and you can see the wire, so the insulation is not qualified. In the transformer overhaul process the staff must strictly follow the standard to carry out. The maintenance of lead wire, iron core and clamps, guide cooling device and oil tank bell jar, etc. shall meet the standards. As long as it reaches the standard, it can bring convenience and use value to people and ensure the safety and smooth operation of baoding oil-immersed transformer.

Baoding zhongyi electric material manufacturing co., ltd. is a professional transformer manufacturer in baoding transformer factory, with professional production equipment, lifting, tooling and testing equipment, established a perfect quality management system, product performance indicators have reached the standard.

The company's main products: baoding dry transformer, baoding box transformer, baoding oil-immersed transformer, baoding high and low voltage complete sets of equipment. I companies to follow "detail decides success or failure, honesty molded the future" of the enterprise purpose, adhere to "quality measuring market, seek development by innovation, to management for efficiency" business philosophy, to make my company's products are widely used in power plant, chemical, construction, mining, metallurgy, rail transportation and other industries, to meet the needs of various users, my company rely on superior product quality, thoughtful service, won the trust of our customers.