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← ScienceWhich consequence results when eddy currents excessively heat transformer laminations?
A)Increased hysteresis losses in the core
B)Reduced primary-secondary winding capacitance
C)Decreased transformer voltage regulation
D)Insulation breakdown and short circuits✓
💡 Explanation
Insulation breakdown occurs because the increased temperature degrades the insulation between laminations via dielectric breakdown. Therefore short circuits arise rather than increased hysteresis, which is magnetization dependent, without direct thermal coupling, or capacitance change, which would be minor.
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