The insulation between windings and grounded core and the insulation between the windings of the same phase is called__________________?
Correct answer: B. major insulation
- A. minor insulation
- B. major insulation
- C. either of the above
- D. none of the above
Explanation
Major insulation separates the windings from the grounded core or tank and also separates windings of different voltage levels. Insulation between turns or layers is generally classified as minor insulation.
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