What is transformer oil name?
Mineral oil
Mineral oil and Synthetic oil are the majorly used transformer oil. These are the petroleum products, like Naphthenic based transformer oil and Paraffinic based transformer oil. Naphthenic based transformer oils are known for their heat distribution, which is one of the main problems with transformer.
What type of oil is used for transformer cooling?
Naphthenic mineral oil
Naphthenic mineral oil has long been the most preferred insulating liquid for power transformer insulation because it has a good pouring point at low temperatures, good thermal cooling capacity, low cost, high efficiency and availability on the transformers market [1, 2, 3, 7].
Why is oil used to cool transformers?
Transformer oil is a mineral based oil that is commonly used in transformers for its chemical properties and dielectric strength. This oil in your transformer acts as an insulator and a cooling agent. The acid will form sludge which settles on the windings of the transformer resulting in reduced heat dissipation.
What is PCB transformer oil?
Polychlorinated biphenyls (PCBs) are persistent organic pollutants in insulating oil of a large number of transformers. A rapid and economical analytical method to detect PCB contamination is still required.
How do you cool down a transformer?
Cooling Methods of a Transformer
- Oil Natural Air Natural (ONAN)
- Oil Natural Air Forced (ONAF)
- Oil Forced Air Forced (OFAF)
- Oil Forced Water Forced (OFWF)
What is Type 2 Mineral Oil?
Type I mineral oils are used for apparatuses where normal oxidation resistance is required, where as, Type II mineral oils are used for apparatuses where greater oxidation resistance is required.
What is cooling of transformer?
Cooling of transformers is a process where the heat generated is treated back to a safe value. The cooling of transformers is done through various methods. The primary reason for transformer heat up is the loss of eddy current, iron, copper loss, and hysteresis.
What is used to cool transformers?
The coolants used in the transformer are air and oil. In dry type transformer air coolant is used and in oil immersed one, oil is user. In the first said, the heat generated is conducted across the core and windings and is dissipated from the outer surface of the core and windings to the surrounding air.
What is Askarel oil?
The askarels are used as insulating liquid and refrigerant in electrical transformers and other electrical appliances, because these synthetic liquids are very stable, corrosive name, low flammability and they are excellent thermal insulation agents.
What is cooling in transformer?
Cooling of a transformer is the process of dissipation of heat developed in the transformer to the surroundings. The losses occurring in the transformer are converted into heat which increases the temperature of the windings and the core. In order to dissipate the heat generated cooling should be done.
What is cooling tubes in transformer?
The system includes external radiator tubes with air cooling from fans installed on transformer tank walls. The fans suck the air from below and direct it to the top part of the tubes, cooling the hot oil. If the nominal load is below 100%, this cooling system can operate with the fans off.
Which type of oil is used for transformer cooling?
Generally, the oil we use for the electrical power transformer insulation and cooling purpose is called the transformer oil or insulating oil . This oil used to collect through the partial distillation of crude petroleum. Now there are two main reasons for using this insulation oil in power transformers.
Why is transformer oil used in transformer?
Why transformer oil is used in transformer. Oil also picks up heat while it is in contact with the conductors and carries the heat out to the tank surface by self convection. Thus a transformer immersed in oil can have smaller electrical clearances and smaller conductors for the same voltage and kVA ratings.
What is the function of the oil in a transformer?
Transformer oil or insulating oil is an oil that is stable at high temperatures and has excellent electrical insulating properties. It is used in oil-filled transformers, some types of high-voltage capacitors, fluorescent lamp ballasts, and some types of high-voltage switches and circuit breakers.Its functions are to insulate, suppress corona discharge and arcing, and to serve as a coolant .
What are the types of transformer oil?
There are two types of Transformer Oil, Naphthenic and Paraffinic based Transformer Oils. A comparison between the Naphthenic and Paraffinic Transformer Oil is listed below.