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Xd for leroy sommer generator

Xd for leroy sommer generator

Xd for leroy sommer generator

(OP)
I´ll like to know the Xd for a leroy sommer generator, i thought that was 15 but i don´t remmenber
 

RE: Xd for leroy sommer generator

(OP)
generator is 300kw and 400 volts

RE: Xd for leroy sommer generator

gaux

I think that your memory is failing you, Xd for an alternator of this size would be in the region of 2.85
X'd about 0.18
X"d about 0.13

 

RE: Xd for leroy sommer generator

Careful guys!

Xd is sychronous reactance - and 150% - 300% is of the right order for this size.

Xd' is transient reactance, and 15% - 30% is the sort of value you see

Xd" is subtransient reactance, and can be say 5 - 20%

It all depends on the exact design and winding configuration

Xd' and Xd" are the ones you need most, for fault level calculations etc.

Why not ask Leroy Somer?  www.leroy-somer.com

You will need the frame size and serial number from the nameplate

RE: Xd for leroy sommer generator

(OP)
thanks at the end i find it, and it´s x´´d is 9,3, Xd 327 and X´d is 15,5, and yes, i go through your link and find on leroy somer....
thanks very much

 

RE: Xd for leroy sommer generator

Nice to have feed back.  Good luck

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