what is zero sequence curr
ent ?
Answers were Sorted based on User's Feedback
Answer / ayush chamoli
according to fortescue- unbalanced 3 phase voltage nd
current(during fault) r made up of three symmetrical
component having positive,negative nd zero sequence.
zero sequence-when all the symmetrical components r in
phase nd hve same magnitude.
+ve sequence- when symmetrical components r in 120 degree
phase wrt to each other nd hve same phase sequence as
supply voltage.
-ve sequence-when components hve 120 degree phase wrt each
other nd hve opposite phase sequence compared to supply
voltage(3-phase).
for 3phase(symetrical or balanced fault)- only +ve sequence
exist while zero nd -ve sequence r zero.
LG fault all sequences r equal.
LL fault-only + nd -ve sequence(as no ground thats why no
zero sequence).
LLG fault-all sequences nd hve different values.
Is This Answer Correct ? | 67 Yes | 5 No |
Answer / chimbu
zero sequence current means what u will get when u will
have ground fault on a three phase system.
Is This Answer Correct ? | 27 Yes | 16 No |
Answer / shankari
there is no sequence at all.they are all in phase with each other
Is This Answer Correct ? | 0 Yes | 0 No |
Answer / thenmozhi r
its refered as the voltage and current is inphase and have
same magnitude.
Is This Answer Correct ? | 4 Yes | 13 No |
What are the protections to be used for Generator?
Why we can't start a tube light without a starter(choke) and an inductor?
what is the difference between indoor & Out door substations
what is meant by 3rd hormonics ?
In a company has been installed an analog amperemeter, this company was suplied by generator X, there is no problem in the ampere meter, rigth now this company's supplied by generator Y then the pointer in amperemeter vibrating. What happened? Why? Thank's
can we synchronize star system generators with delta system generators?
What is the typical power circuit configuration of a VVVF Drive ?
what is the diffrence between single phase and three phase
In star delta Schematic can we connect OLR in delta circuit
what is the working principle of UPS?
how i calculate the syncrones generator NGR resistance .if we have a 6mw generator line voltage of generator 11kv also line current 393.3 ampere.
What is the acceptable earth resistance for Commissioning the Transformer?