The usual values of maximum flux densities for distribution transformers using hot rolled silicon steel are______________?
Correct answer: C. 1.1 to 1.35 Wb/m2
- A. 0.5 to 0.8 Wb/m2
- B. 0.8 to 1.0 Wb/m2
- C. 1.1 to 1.35 Wb/m2
- D. 1.4 to 1.8 Wb/m2
Explanation
Hot-rolled silicon steel is generally operated at a maximum flux density of about 1.1 to 1.35 Wb/m² in distribution transformers. Higher values increase core loss and magnetising current.
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