The advantage of oil filled cables is_________?
Correct answer: D. all of the above
- A. more perfect impregnation
- B. smaller overall size
- C. no ionisation, oxidation and formation of voids
- D. all of the above
Explanation
Oil fills voids in the insulation, improves impregnation and suppresses ionisation and oxidation, allowing a more compact cable design. Hence all three listed benefits apply.
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