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← ScienceWhich risk increases when impedance matching fails in solar inverters?
A)Thermal runaway in the MOSFETs✓
B)Increased grid harmonic distortion
C)Photovoltaic cell front glass delamination
D)Backsheet material electrical breakdown
💡 Explanation
Thermal runaway increases because mismatched impedance prevents optimal power transfer, creating excess heat due to increased currents. This mechanism, Joule heating, overwhelms the cooling system; therefore, overheating occurs rather than grid issues or panel delamination under standard conditions.
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