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← TechnologyWhich risk increases when a three-phase transformer's protection inhibits overcurrent correctly via an internal feedback reporting circuit?
A)Core saturation in cyclical overloads✓
B)Arc flash during maintenance routines
C)Increased eddy current hysteresis losses
D)Resonance within transmission line inductances
💡 Explanation
Core saturation risk during cyclical overloads increases because the flux in the core exceeds its design limits due to the transformer's protection inhibiting appropriate action. Therefore, saturation, rather than other electrical effects, occurs because of sustained or amplified asymmetrical current phases during the cyclic process.
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