Live Quiz Arena
🎁 1 Free Round Daily
⚡ Enter ArenaQuestion
← TechnologyWhich risk increases when inductive load current exceeds breaker rating?
A)Arc flash and plasma formation✓
B)Eddy current core saturation
C)Dielectric gas intermolecular breakdown
D)Increased magnetostriction induced vibration
💡 Explanation
Exceeding a circuit breaker's rating can cause ionization of the air gap due to excessive current; this **thermal runaway** leads to extremely hot plasma, because the increased temperature sharply reduces resistance, resulting in a runaway current. This escalates to arc flash initiation rather than just eddy currents.
🏆 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 a three-phase power system experiences single-phasing condition?
- Which mechanism causes instability during high-speed robotic welding?
- Which consequence results when link parameter deviation occurs within robotic arm kinematics?
- Which risk increases when anchoring wedges loosen in post-tensioned concrete?
- Which consequence results when thermal expansion misaligns a CNC milling machine's ball screw actuator?
- Which risk increases in a three-phase power transformer cooled by oil when under-sized circuit breakers fail to trip during an overload?
