Which risk increases when a power transformer's protection circuit uses inverse-time overcurrent relays during a fault?

💡 Explanation

When a fault occurs, inverse-time relays delay tripping because current trips proportionally slower with higher current, potentially allowing the fault to propagate through the system, causing cascading failures. Therefore, cascading failures can occur, rather than increased inrush, spurious tripping or resonance which would require different circuit characteristics.

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