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← TechnologyWhich issue arises when rapid, successive short circuit faults occur near a power transformer, overwhelming protection breakers?
A)Contact welding due to fault current✓
B)Voltage sag causing equipment damage
C)Transformer core saturation from DC offset
D)Communication interference from transients
💡 Explanation
When successive short circuit faults occur, extremely high currents flow and can cause the breaker contacts to weld together due to the intense heat generated by the arcing. Therefore contact welding results, rather than voltage sag, core saturation, or interference which result from slower impedance or electrical mechanisms.
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