Live Quiz Arena
🎁 1 Free Round Daily
⚡ Enter ArenaQuestion
← TechnologyWhich outcome occurs when a three-phase induction motor operates with a single open phase winding?
A)Reduced torque and overheating✓
B)Increased speed and lower efficiency
C)Stable torque and balanced currents
D)Reverse rotation and immediate shutdown
💡 Explanation
When one phase is open, uneven magnetic fields are generated therefore causing the motor to produce significantly reduced torque and experience increased current in the remaining phases, leading to rapid overheating. Resulting it being reduced torque and overheating rather than other outcomes that rely on balanced or closed circuits.
🏆 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 the grinding wheel saturates excessively during CBN grinding of hardened steel?
- Which risk increases when concrete highway bridge beams experience excessive chloride penetration?
- Which outcome occurs when a step-down transformer is connected with reverse polarity in a low-voltage lighting circuit?
- Which risk increases when power spectral density limit is exceeded in spread spectrum signal transmission?
- Which outcome occurs when a three-phase transformer experiences a delta-wye winding configuration fault?
- Which risk significantly increases when excessive optical power enters photodiode?
