Types of Oil Immersed Transformers for Sale

1.What Is an Oil Immersed Transformer? An oil immersed transformer is…

1.What Is an Oil Immersed Transformer?

An oil immersed transformer is a transformer that is filled with transformer oil, usually mineral oil. This kind of transformer is commonly used in the distribution of electricity at lower voltage levels. The main components of an oil-filled transformer are the winding, coil, conservator and insulating oil. The transformer winding consists of two or more coils which are insulated from each other by either paper or some form of synthetic material. The coil is then immersed in oil to provide insulation for the windings as well as cooling for the system.

The conservator stores additional insulation fluid when the temperature and pressure increases due to load changes. It also maintains a relatively constant level of oil in the tank so that there is adequate insulation between the windings and core. In addition, a conservator helps to prevent moisture from entering the transformer tank by providing an air gap between it and the top of the tank. Lastly, the insulating oil acts as a dielectric medium between windings and core while providing cooling to both components during operation. All these features work together to ensure reliable operation of an Oil filled Transformer.

oil immersed transformer exporter

2.Structure and operation principle of Oil-immersed transformer

Oil filled transformer features two or more coils, called windings, which are wrapped around a magnetic core. The basic elements of an oil-filled transformer include the core, windings and an insulating material like oil. The core provides a path for the magnetic flux generated by the windings to flow through and around the core.

The oil-filled winding helps maintain temperature balance within the transformer by preventing overheating and providing dielectric insulation for high voltage operations. The insulation provided by the oil-filled helps protect against electric shock and other hazards associated with high voltage electricity.

In addition, it also prevents any external moisture from entering the transformer and damaging its components. Oil-type transformers are considered to be one of the most reliable kinds of transformers due to their efficient cooling performance and insulation properties.

structure of oil-immersed transformer

3. Types of Oil transformer

Oil-immersed transformers are a type of power distribution transformer that uses oil as an insulating and cooling medium. They are the most commonly used type of industrial transformer, due to their high efficiency, low maintenance costs and ability to handle large electrical loads.

There are two types of oil transformers: single phase and three phase. Single phase oil transformers handle one-phase electricity supply, while three phase oil transformers are designed for larger applications that require a three-phase power supply.

In both cases, the windings in the core are immersed in oil which cools down the transformer as it operates. It also provides insulation between the coils, preventing short circuit or other electrical problems. Oil transformers are highly efficient and reliable, making them an ideal choice for many commercial and industrial applications where safety is paramount.

single phase & three phase oil immersed transformer

4. Purpose of using Oil Immersed Transformer

pole mounted oil transformer

The use of oil-type transformers, including transmission and distribution networks, is essential in the modern electricity industry. Oil transformers are used to transfer electrical power from one point to another. These transformers choose oil as an insulating medium and have a higher efficiency compared with other types of transformers.

The purpose of using oil-filled transformer is to reduce power loss while transferring electricity over long distances. Additionally, this type of transformer is widely used for renewable energy generation and distribution systems due to its high efficiency in energy transfer.

Ultimately, the use of an oil transformer helps reduce energy losses that occur when electricity is transferred through long distances and improves the overall performance of a power system.

5. Cautions when using an Oil-immersed transformer

Oil transformers are widely used in power transformers, and they use oil as an insulation medium and cooling medium. When using the transformer, it is important to pay attention to several cautions.

The oil level must be kept between the upper and lower limits of the oil tank, otherwise it will cause an abnormal increase of transformer temperature or even burn out of the transformer.

Also, when using a transformer, pay attention to its load capacity. Overload operation can easily cause overheating of the transformer.

In addition, it is best to adopt an oil cooling method to reduce the temperature rise of the transformer. Finally, check regularly whether there is leakage or seepage in the oil tank filled with insulation oil in order to ensure safe operation.

oil transformer

6.The difference between dry transformer and oil transformer

Dry-type transformers and oil transformers are both used in power systems, but they differ in several ways. Dry transformers use insulation systems to protect the coil and iron core from short circuits. While oil transformers are immersed in an insulation oil that provides natural cooling. Dry type transformers also use air cooling for additional protection. Whereas oil transformers rely solely on the insulating oil for cooling.

In addition, dry-type transformers are smaller and lighter than their oil counterparts, making them easier to install and maintain. However, due to the insulation system in the dry-type transformer, it is more expensive than an oil transformer. This makes it a better choice for areas where space is limited or cost is a major concern.

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