what role does a star point or neutral point play in a star
connected system?
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Answer / subhendu
1.eliminate 3rd harmonics
2.eliminate voltage unbalanced partially.
3.used in 1 phase distribution system
Is This Answer Correct ? | 5 Yes | 0 No |
Answer / marsad
In a transmission system star connected transformers are preferred than delta connection.. .
Usually the star point is earthed and connected a neutral current transformer in series with the neutral point and ground.. and works as a 3 phase 3 Wire system..
Whenever an internal fault occurs an unbalaced current Flows through the neutral point and then through NCT if the neutral current above a limiting value a relay connected from NCT (called restricted earth fault relay) will actuate.. Which will trip the transformer and protects it.. This can only be done in star connected transformers..
Is This Answer Correct ? | 1 Yes | 0 No |
Answer / gravityguru
it provides a point to create potential difference...
between R-N, Y-N. B-N phases....this is in case of 3phase 4
wire system................
hence we can connect balanced or unbalanced load to different
phases
Is This Answer Correct ? | 1 Yes | 3 No |
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