Transformer oil
Transformer oil is a kind of mineral oil that is refined and also obtained from the distillation of crude oil. Transformer oil plays a great role in the transformer.
Characteristics of transformer oil
Transformer oil has a series of characteristics that make it possible to use it abundantly. This oil has dielectric power and also Its viscosity is low and there are no inorganic acids in it. Also, this oil has good resistance against tarnishing, and at the same time, the properties of the materials return quickly.
It can also be said that the point It has little shedding and its ignition point is high.
Effect of transformer oil
The following are the factors that transformer oil has an effect on:
- cooling
- information transmitter
- electrical insulation
- long life
- prevention of corrosion of insulation materials
- sealing and Collecting
- Extinguishing the electric spark
- Compatibility with other equipment and materials
Cooling
The electric and magnetic fields that are in the transformer produce a lot of energy, the heat produced from it causes the core to heat up a lot. find and the temperature of the transformer increases as well; Therefore, if the transformer is not cooled; The temperature of the equipment that deals with it is increased, and it also prevents heat transfer from the core sheet, lead wire, etc. has a role
The modeling of electrical devices that require insulation systems must include comprehensive and liquid materials; In this system, the liquid part plays a very important role and must be able to show its resistance against electrical stresses. r
Oil generally has three classes, which are different in terms of temperature, viscosity, and ignition. Oils show different reactions according to naphthenic base as well as oil with paraffinic base.
This mineral oil is made up of compound molecules including hydrogen and carbon with different structures. The letters NPA show that the structure of the main material of mineral transformer oil, each of which has a different meaning. In this structure, P represents paraffinic, this group is a series of chain molecules. or they have a branch.
N in these letters shows the naphthenic structure whose molecules have a common name of silko.
A shows the aromatic structure that all transformer oils They have some of it.
Properties of good transformer oil
This oil must be of good quality, its properties affect the performance of the oil. put Also, the high purifying properties of the oil cause its life to increase. In the following, we will state some indicators of good transformer oil. Viscosity as well as its stickiness. The lower the viscosity, the oil can easily start working as a heat transfer fluid. Since the amount of oil transfer is very important, the heat must be close to the inside of the transformer by the transfer and transfer of the oil.
Another feature that you should pay attention to is that safety issues are very important in transformers. There are standards that are for flash point. The flash point has a good relationship with the weight of the oil and it is very sensitive in the pollution produced from light oils. The solubility of water in oil depends on the temperature and its polar molecules. Any amount of oil solubility is more dependent on purification and the same temperature during it. If the amount of water in the oil is high, it causes the oil to foam during degassing, and this foam also causes it to form in polluted systems. In general, we must say that liquids that are clean never foam.
