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← TechnologyWhich outcome occurs when exceeding the Volt-Hertz ratio limits in variable frequency transformer drives?
A)Motor core saturation increases rapidly✓
B)Regenerative braking capabilities improve
C)Harmonic distortion diminishes noticeably
D)Transformer thermal capacity gets enhanced
💡 Explanation
Exceeding Volt-Hertz limits causes magnetic core saturation because reducing frequency without proportionately reducing voltage increases flux density beyond the core's capacity; therefore saturation increases rather than diminishing harmonics that can occur with under-voltage.
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