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generator fault current
2

generator fault current

generator fault current

(OP)
please let me know the fault current calculation of generator of 20 to 50 MW.  

RE: generator fault current

Hi.
For the start:
I3ph-fault=Inom gen/X"d (for the turbogenerator from 13%-17%).
Regards.
Slava

RE: generator fault current

(OP)
Thank you for your reply,

For 30MW 11KV Generator, rated current is 1968, Xd"(sat)-11.84% & Xd"(unsat)-14.79. i have to take saturation value or unsaturation value of Xd".
 

RE: generator fault current

Hi.
You have use saturated transient X"d 11.84%
Regards and Good Luck.
Slava

RE: generator fault current

(OP)
thank you very much

RE: generator fault current

(OP)
hi

you informed as below

For the start:
I3ph-fault=Inom gen/X"d (for the turbogenerator from 13%-17%).

but i have still one doubt i,e I nom gen (or) V nom gen.
 

RE: generator fault current


It is Inom in ampere and X"d in %

So I3ph = 1968/(11.84/100)

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