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← TechnologyWhich failure risk increases when a utility’s load changes rapidly?
A)Circuit breaker cascading failure✓
B)Transformer core saturation effects
C)Transmission line icing increases
D)Generator synchronous instability rises
💡 Explanation
Cascading failure in circuit breakers is more likely under high dI/dt because inrush current protection schemes may fail when power demand fluctuates rapidly; therefore one breaker trips, overloading others, rather than distributed changes in power flow alone causing other operational issues.
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