when will cause the negative sequence falut in electrical
system?
Answer Posted / shyamkr
symmetrical components are just the way of representing a
set of unbalanced phasors.whenever any fault occurs in any
phase,unbalanced set of vectors result,to analyse these
unbalanced set of vectors we require symmetrical components
i.e positive,negative and zero seq. currents or voltages.
as the question here ask about only negative sequence
faults,so the nagative faults result whenever there is any
asymmetrical faults in the system.it does not result
whenever 3 phase fault occurs in the system.
| Is This Answer Correct ? | 6 Yes | 0 No |
Post New Answer View All Answers
what is basic difference betmeen normal & flame proof motor??
what is a synchronizing lamp ?
What is the distance between body earthing and neutral earthing.?
Can anybody inform me about the pattern of ECIL GET( Graduate Engineers Trainee) interview for Electrical students? Will there be HR round as well? I thought of preparing for 2 to 3 subjects thoroughly. Will it be sufficient? Please share your thoughts.
What is signal flow graph?
in dc series motor if field wdg is shorted then
Explain about retrofitting of machine tool.
How to select HT/MV cable size ?
with out colour codeing on conductor how can be find what is r,what is b,what is y phases.....
Explain the purpose of inductor in an electric circuit?
Define characteristics impedance?
what is the minimum requirement gigaohms for the insulation test using 5kv in 300mm xlpe cable
What OPGW is better than Microwave or PLCC???
WHAT IS VCB SAFETY
write a program that prints prime numbers from 1-20 in digonal form