[Answer] Why Is Oil Used in a Transformer?: FAQs
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Why Is Oil Used in a Transformer?
Transformer oil is primarily used for insulating and cooling purposes. Power transformers’ primary function is to handle high voltage; thus, an insulation material is required between the windings and other parts within the transformer to prevent current from crossing the predetermined path.
Transformer oil’s primary functions include insulating and cooling a transformer. It must therefore have high dielectric strength, thermal conductivity, and chemical stability, and these properties must be maintained even when held at high temperatures for extended periods of time.
Why use oil filled transformer?
Oil-immersed transformers are more effective at cooling the transformer than dry types. Oil is a more effective cooling medium. They also have more voltage capacity. Dry-type transformers operate at voltages lower than 35 kV, whereas oil-immersed transformers have no such limitations.
Why is oil used as a coolant in transformers?
The primary function of transformer oil is to act as a coolant for the device; this is because a transformer coil is made of copper that carries a high current, and these coils become hot, and because transformer oil is an excellent heat conductor, the temperature of the copper coils reduces the temperature of the coil. As a result, the oil in the transformer plays a significant role in preventing the coil from burning.
Which oil is used in transformer?
It is important to note that three types of transformer oil are commonly used: mineral oil, silicone, and bio-based. Mineral oil-based transformer oils are most commonly used because they have excellent electrical and cooling properties and provide a practical solution.
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