0
Where the transformer oil is circulated in the transformer and how it's cooling the transformer?
Wiki User
∙ 15y ago
Depends on the size of the transformer. Are you are talking about a large power transformer, say 2.5MW or above? If so then the following is usually true. The core/windings of the transformer are immersed in the oil. When the transformer is energised and carrying load the winding heats up. This in turn heats the oil. The tank of the transformer is usually cool due to the air surrounding it. The hot oil moves away from the core to the cooler tank sides. This starts the oil circulating. i.e. as it moves to the side it cools down and then returns to the centre and gets heated up again. As the transformer load increases so does the winding temperature. This means that the oil has to dissipate more heat. Eventually the capacity of the oil to dissipate the heat quickly enough will be reached. If this temperature is reached before the transformer is fully loaded that damage may occur Increasing the size of the tank is one solution However, this could mean a very large piece of equipment. The normal practice is to install a cooling bank or set of "cooling fins". They are also sometimes known as radiators. Generally they are separate from the transformer and connected to it by a flow and return pipe. The flow to pipe is high up near the top of the transformer and the return is near the base. A pump is then used to circulate the oil through them. The pumps are temperature controlled. They only come on when the oil has reached a certain temperature. If this cooling is not sufficient then fans are added. These fans are positioned under the cooling banks. When they are switched one they force air over the cooling banks. This additional air flow takes the heat way faster thus cooling the oil quicker. The pumps then return it to the main tank where it is heated by the core/ windings again.
Wiki User
∙ 15y ago
Add your answer:
Earn +20 pts
What are the methods of drying transformer oil?
iuiynml hytyr gr5euh [ikiutgn,Lp,hug hg
What is the full form of CT PT transformer?
CT=========current transformer PT=========potential transformer these are the instrumental transformers.
What is lvdt?
The linear variable differential transformer (LVDT) is a type of electrical transformer used for measuring linear displacement.
What is the difference between a heatsink and water cooling?
Heatsink uses what they call passive cooling where as liquid cooling systems use active cooling.
Can you make a Jacobs ladder with a fluorescent light transformer?
You can make a Jacob's ladder with a light transformer. There are many designs and ways to build this apparatus.
How the transformer oil is circulated and how it works in the transformer?
convection currents
Which type of oil is used in transformer for cooling the windings?
Mineral oil
Where the transformer oil is circulated in the transformer and how it27s cooling the transformer?
Heat is one of the leading causes of transformer failure. The main source of heat generation in transformers are caused by copper loss in the windings and core (I²R losses). If this heat is not properly dissipated, the temperature of the transformer will rise continually which may cause damage to the insulation. A transformer operating at just 10°C above its rating will reduce its life by 50% so it is imperative to understand how transformers are cooled and how to detect problems in their cooling systems. ANSI and IEEE require the cooling class of each transformer to appear on its nameplate. The cooling classification of a transformer, expressed in letters, designate the type cooling system used. Transformers may have multiple load ratings that correspond to multiple stages of cooling.
What is the purpose of the oil in a oil filled transformer?
cooling Not only that, but also to protect the windings from moisture.
What is the function of radiator in power and distribution transformer?
Radiators are used in a transformer to cool the transformer oil through natural air or forced air flowing in these radiator fins. As the transformer oil temperature goes down due to cooling it goes to the transformer tank from bottom ,cool the windings and gets heated, and then returns to the radiator for next cooling .This cycle repeats as the oil flow is also natural due difference in temperature of oil on bottom and top. In big power transformers this oil circulation is forced by oil pumps for effective cooling. The radiator has many small fins and there are 4-10 radiator banks in a transformer depending on capacity and make of the transformer.
What is difference between a wet type and dry type transformer?
Transformer oil is a much better electrical insulator than air. So, in large transformers, oil is used to reduce the flashover distances between live internal parts, thus reducing the overall bulk of the transformer. At the same time, oil helps cool the transformer either by natural convection, or by forced circulation.'Dry transformers' are transformer that do not use oil for insulation or cooling purposes. They tend to be transformers with lower voltage and power ratings, where flashover and cooling is far less relevant.
Why you use oil in transformer not water?
Oil or similar is used as a cooling fluid in electrical transformer, because it is electrically insulating - which water is not. The figure of merit is the lack of conductivity.
Why cooling oil is used in transformers?
The oil in a transformer has two functions: Oil is a better electrical insulator than air is, so high voltage parts can be placed closer together, saving space and materials. Also, oil is more efficient at cooling the transformer. The oil circulates inside the transformer, removing heat from the internal core and transferring it to the cooling radiators or the surface. In small transformers, this occurs naturally, by convective currents. In large transformers, there are thermostatically controlled pumps to assist this cooling cycle.
WHAT will happen if you run oil transformer with out oil?
As well as providing a cooling medium, transformer oil is also used to insulate a transformer. As its dielectric strength (how well it insulates) is much higher than air, it means that components within a transformer that are at different potentials can be placed much closer together if they are immersed in oil. So, operating an oil-filled transformer without oil will likely cause insulation breakdown within the transformer.
What is odaf cooling in a transformer?
Oil Directed Air Forced , it's speical way to cooling transformers through predetermined pathes in transformer windings . this way provids fester rate of heat transfer .
What type of oil is used for cooling arc welding machine coil?
which oil use for arc welding machine
What type of cooling is used in dry atmospheres in transformer?
forced air and draft oil dissipate
