Interested to Buy Any Domain ? << Click Here >> for more details...
What is negative phase sequence?
- 7 Answers
- 92717 Views
- Hindalco, Universal Associate, I also Faced
- E-Mail Answers
Answer Posted / adil yousuf
Ans ; The negative phase sequence
current will flow due to diffence of three phase volages of
the system.If no difference of R Y B voltage is present,
the negative sequence current will not flow.
In rotating machines an unbalance voltage or current in one
phase winding due to elctrical faults or uneven load
further exacerbates the problem. The magnetic coupling
between the winding becomes uneven.
when subject to unbalance conditions, negative phase
sequence currents produce a counter rotating megnatic field
withrespect to the main field.
The resultant field rotates at double frequency and causes
underirable eddy-currents to flow in various structure such
as the machine rotor body , excitaation winding, stator end
winding and stator iron etc.
| Is This Answer Correct ? | 54 Yes | 8 No |
Post New Answer View All Answers
Can anybody tell abt concrete encased earthing or grounding?
How to Preparation of online test
What does ampere turns shows?
What is a parabolic signal?
PIU how does work?
I have two PLC processors. I want to communicate both processor with each other. How i can do so?
what is the difference b/w pvc cu conductor and cu breaded wire..?
What is advantages of VSCF wind electrical system?
Main advantage of auto transformer over two windings transformer is that A it needs no cooling B it uses only one winding C core losses are reduced D it has simple construction
what is mind in cable
how we decide the require size is this for a known current at fuu load?
standard earthing rating for power line..
hi , i have 150 kw loud and we need 50 m cabil,i want to know wich size cabil we use. thanks
Whar is the KvA rating of 33Kv substation & actual kv rating of power generaating station.
Define cut-off rate?
