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← ScienceWhich risk increases when a capacitive discharge welding system cools without controlled dissipation?
A)Stress corrosion cracking initiation
B)Reverse bias leakage surges
C)Catastrophic dielectric breakdown✓
D)Ferrite core saturation losses
💡 Explanation
Catastrophic dielectric breakdown increases because the system retains a high voltage charge without the gradual **dielectric relaxation** mechanism which relieves internal stresses. Therefore, the stored energy exceeds the dielectric's capacity, rather than uniform cooling which would mitigate voltage stress.
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