Physics · Electric Motors
What is the primary effect on a 3-phase induction motor if 'single phasing' occurs while it is running under load?
Verified Solution4 OptionsUpdated: October 2026👁️1 View
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- 1The motor continues to run on two phases, drawing excessive current, which is likely to burn the winding.✓
- 2The motor will completely stop instantly and refuse to draw any current.
- 3The motor will run smoothly as a 2-phase motor without any temperature rise.
- 4The motor runs at low speed and can carry only 2/3rd of the load safely.
Correct answer
The motor continues to run on two phases, drawing excessive current, which is likely to burn the winding.
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