What are the usage methods for oil immersed power transformers?

Oil immersed power transformer is one of the commonly used equipment in the power system, used to change voltage and regulate power load. It converts high-voltage electrical energy into low-voltage electrical energy for use by various electrical devices. The following will introduce the usage method of oil immersed power transformers.

Firstly, oil immersed power transformers need to be installed indoors with good ventilation, no water, no corrosive gases, and mandatory ventilation measures. The transformer must be kept in a horizontal position to ensure that the cooling oil inside the oil immersed transformer can circulate normally and to ensure the normal operation of the transformer.

Before using an oil immersed power transformer, it is necessary to check whether the insulation strength and performance parameters of the transformer meet the requirements. The inspection includes insulation resistance measurement, stress analysis, oil and gas sampling analysis, etc., to ensure the safe operation of the transformer.

When changing voltage, it is necessary to choose a suitable connection group based on the rated capacity and operating frequency of the transformer. The connection group of the transformer determines the ratio relationship between the output voltage and input voltage of the transformer. The connection group of transformers is usually marked on the transformer body, and users need to make choices according to their needs and set them correctly.

The input and output terminals of transformers need to be insulated with insulating tape or sleeves to prevent short circuits or leakage between electrical equipment. In addition, it is necessary to regularly inspect and maintain insulation materials during use to maintain their good insulation performance.

The cooling system of the transformer needs to be kept unobstructed and the working state of the cooling system should be adjusted according to the load situation and usage environment of the transformer. Normally, cooling systems include two methods: natural cooling and forced cooling. Users need to choose appropriate cooling methods based on the specific requirements of the transformer, and make necessary adjustments and maintenance.

During operation, transformers need to be regularly inspected and maintained to ensure their normal operation and service life. Inspection and maintenance include checking the insulation condition of the transformer, the working status of the cooling system, oil quality and level, and the tightening of connecting bolts. For oil immersed power transformers, oil quality is an important factor in ensuring the normal operation of the transformer, so regular oil quality inspections and maintenance are necessary.

In addition, for larger capacity oil immersed power transformers, explosion-proof equipment is also required to prevent explosions caused by internal faults in the transformer. Explosion proof equipment usually includes safety valves, explosion doors, etc. Users need to choose and install according to the specific requirements and usage environment of transformers.

In summary, the usage methods of oil immersed power transformers include correct installation, selection of appropriate connection groups, insulation treatment, adjustment of cooling system, regular inspection and maintenance, etc. Only correct use and timely maintenance can ensure the normal operation and service life of oil immersed transformers. At the same time, users need to comply with relevant safety operating procedures to ensure the safe operation of transformers.