VibraXX
Live Quiz Arena
🎁 1 Free Round Daily
⚡ Enter Arena
HomeCategoriesTechnologyQuestion
Question
Technology

Which risk increases significantly when over-sensitizing ground fault circuit breakers (GFCI)?

A)Nuisance tripping during normal operation
B)Increased let-through current during faults
C)Elevated breaker internal temperatures
D)Decreased breaker short circuit capacity

💡 Explanation

Nuisance tripping rises when GFCIs are too sensitive because variations in background leakage currents trigger the *differential current sensing* mechanism earlier than necessary; therefore, breakers trip without a true fault, rather than operating only during legitimate fault conditions.

🏆 Up to £1,000 monthly prize pool

Ready for the live challenge? Join the next global round now.
*Terms apply. Skill-based competition.

⚡ Enter Arena

Related Questions

Browse Technology