Live Quiz Arena
🎁 1 Free Round Daily
⚡ Enter ArenaQuestion
← TechnologyWhich outcome occurs when three-phase transformer banks experience differential overcurrent?
A)Sympathetic breaker tripping cascades rapidly✓
B)Controlled islanding sustains local loads
C)Arc flash initiates system-wide failure
D)Inertial overload strains transformer windings
💡 Explanation
Sympathetic tripping appears because differential protection measures imbalances, therefore tripping breakers to isolate faults by "differential relaying", rather than allowing arc flashes. Inertial overloads may occur with motor starting but do not cause this cascade.
🏆 Up to £1,000 monthly prize pool
Ready for the live challenge? Join the next global round now.
*Terms apply. Skill-based competition.
Related Questions
Browse Technology →- Which outcome occurs when lateral wind loads exceed column's buckling resistance?
- Which problem arises in a three-phase power transformer when D-Y vector group windings experience unequal impedance loading?
- Which consequence results when ambient temperature exceeds limitations of a LiDAR sensor?
- Which outcome is observed when a proportional valve's spool sticks in a hydraulic servo system?
- Which consequence results when rapid valve cycling in a hydraulic control system induces dynamic pressure imbalances?
- Which risk disproportionately escalates when a halocarbon refrigerant leaks into moist air?