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What happens if a three phase induction motor is suddenly
single-phased while running? Which type of winding
connection will be affected?
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Answer Posted / rajesh sharma
1.if motor conected in STAR than motor two winding burn
2. if motor in DELTA motor one winding burn
3. time duration is depend on load for burning
4. in star R phase is blown than y/b winding burn because
that winding get 440volt and take to much current
5. delta if r phase blown than y pahse winding burn because
only that winding get 440 supply other no.
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