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Within a municipal power grid, which outcome occurs when significant harmonic distortion arises?

A)Increased reactive power requirements
B)Decreased transmission line impedance
C)Improved transformer cooling efficiency
D)Stable three-phase voltage balance

💡 Explanation

Harmonic distortion introduces frequencies besides the fundamental, causing increased reactive power requirements because the grid's load impedance at harmonic frequencies differs significantly. Therefore reactive power demand increases, rather than impedance decreasing due to increased skin effect and eddy current losses which heat transformers.

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