Which of the following types of motor enclosure is safest ?
Correct answer: B. Totally enclosed fan cooled
- A. Totally enclosed
- B. Totally enclosed fan cooled
- C. Open type
- D. Semi closed
Explanation
A totally enclosed fan-cooled enclosure prevents contact with live or rotating parts and protects against dust and moisture while the external fan removes heat. An open or semi-closed motor offers less protection.
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