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Question
For 275 kV transformers, using cold rolled grain oriented steel, which of the following values of flux density may be used?
Options:
A .  1.0 Wb/m²
B .  1.1 Wb/m²
C .  1.3 Wb/m²
D .  1.6 Wb/m²
E .  None of the above
Answer: Option D

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