Generator reactances...help required
Generator reactances...help required
(OP)
i am working on a offshore marine project where i have ended up with generator rating of 8000kW, at 11kV, 60Hz. With 12% subtransient reactance i am getting s.C level of 29kA. i am not sure of the sub transient reactance values to be considered for such hv rating generators??
i always had the impression that 10-15% sub transient reactance is normal.....going above 18-19% becomes costly affair.....
any inputs on how to choose the optimum value? highest/lowest values based on generator ratings? any selection ways?
help required.
i always had the impression that 10-15% sub transient reactance is normal.....going above 18-19% becomes costly affair.....
any inputs on how to choose the optimum value? highest/lowest values based on generator ratings? any selection ways?
help required.






RE: Generator reactances...help required
RE: Generator reactances...help required
Xd 1.33PU
X'd 0.124PU
X"d 0.089PU
Reactances for a 18MW 13.8kV machine are
Xd 1.587PU
X'd 0.179PU
X"d 0.126PU
Something to compare it to.
RE: Generator reactances...help required
RE: Generator reactances...help required
RE: Generator reactances...help required