what is vector surge & vector shift? we have 25.3 MW(11kv)
generator & 11kv/132kv transformer, connected with with 132
kv grid.vector surge relay is tripping frequentaly.what is
permissible maximum limit for this.
Answer Posted / gobind
Whan the generator have synchronized with grid the waveform
have 120 Deg each phase but at the time of any fault
occurred in the grid system,at that time the waveform of the
grid voltage have been reduced from 120 Deg to min at that
time vector Shift Relay have operated.Permissible limit of
the vector Shift 8 Deg.
| Is This Answer Correct ? | 6 Yes | 1 No |
Post New Answer View All Answers
What are your personal skills and abilities for such a Master Course and your possible preparation to undertake this course?
how oltc works in rectiformers of higher rating (27 mva,200v dc,120kamps) please provide me full information with diaggram.
what is effect of length of air gap on performance of dc motor and generator?
How to justify this statement ??? "Capacitors in series provide less capacitance but higher voltage breakdown rating for the combination"
Approach of a cooling tower is the difference between temperatures of what factors?
how can we save enegry by using VFD for Resiprocating Air compressor which is having more unloading running hours
where can the transformer having vector group Yny0 be used??
What is the Good Earth resistance value of G.I & Cu. Chemical Earthing & Normal Pipe Earthing?
What are two contours of nichols chart?
Help need in transformer !? Hello Friends The parameters of 2300/230 v 50hz t/f is R1=0.286 ohm R`2=0.319 ohm Rc=240 ohm X1=0.73 ohm X`2=0.73 ohm Xm=49.2 ohm Secondary Load impedance ZL=0.387+J0.29 solve the exact equivalent circuit with normal voltage across primery.. I know every thing but i cant find CURRENT I1=? and I`2=? Please help me give solution or only Formula please please...
why in an industry; machine having rated 200 h.p stopped after power factor is maintained above 0.97 lag by control panel in view-of energy saving
WHAT IS IEC? & WHAT IS BENEFIT TO PRODUCT FROM IEC?
how dose servo motor works
What is kirchoff ’s current law (kcl)?
Why air circuit breaker off due to power failure?