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What is the dielectric constant and why is it important?

What is the dielectric constant of castor oil?

  • At 348K, among all the oils, the highest dielectric constant of 63.4 and the lowest of 39.1 have shown by refined sunflower and refined castor oils respectively. The ε' values of all other oils lie between 14.78 and 63.4.

What is the dielectric constant of water in engine oil?

  • Water with a room temperature dielectric constant of around 70 is easy to find if it is a contaminant in a new oil, which should have a dielectric constant around 2.1 to 2.4. Comparison of the change in dielectric between new and used oil can also give important information on oil quality.

How do you increase the dielectric strength of an oil?

  • It increases dielectric strength. Careful draining of dielectric fluid from a glass vessel without mixing allows obtaining oil with high dielectric strength. The presence of polar, low-boiling and high-boiling substances has almost no effect on electric conductivity and dielectric strength of insulating liquid.

image-What is the dielectric constant and why is it important?
image-What is the dielectric constant and why is it important?
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