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Failure of the first prototype MV photonic voltage transducer (PVT) after a series of lightning impulses that caused excessive accelerations, resulting in internal forces that exceeded the material’s mechanical strength. The picture illustrates the shattered piezoelectric transducer, taken out from the disassembled sensor unit, still partially covered with dielectric gel. The piezoelectric stack broken apart (a) and shattered piezoelectric component with a visible crater (b).
