06-24-2015 05:58 PM
I have a CAT 900kw 600v genset parrelled with a CAT/Kato 1000kw 600v genset.
I have quite high neutral ground current so i'm trying to find out if I have a winding pitch mismatch.
Can anyone tell me the winding pitch for the following 900kw CAT generator?
Arrangement # 9Y-1411
Thankyou for your help in advance
Solved! Go to Solution.
06-25-2015 12:21 PM
Actually 3/4 pitch is quite common in the oil field industry, CAT, Kato and Baylor all provide this pitch in a large number of generators. the Kato "oil field" tail ends are standard 3/4 pitch, as are most of Baylor's line.
If you bought a used tail end from someone without spcifying pitch, then there is a good chance you got an old oil field unit.
08-05-2016 01:55 PM
I'm getting into this discussion quite late but I've just joined the group. I'm wondering if you were able to resolve the circulating neutral current problem. If not, there is now a simple and very effective solution (http://www.mirusinternational.com/genlink.php). Let me know if you have any questions.
08-17-2018 03:29 AM - edited 08-17-2018 03:31 AM
We are planning to Run a gas engine in parellel to Existing CAT 3512B land Rig Engines,
Please can you give me Pitch of the below Sr. no/arr no of alternators.
7TN04192 / 320-3716
7TN05341 / 434-7058
even if its not possible to run different pitch of alternators in parellel, is it okay for a short time synchronization to change over from Gas genset to Diesel Genset, the purpose is to change over without a blackout.
at present we don't know the pitch of the gas gen Alternator, its Siemens 750KVA
11-09-2018 11:17 AM
Suresh, if you send us your inquiry to firstname.lastname@example.org we can assist you with your neutral circulating current concern. You can run generators with different pitches in parallel so long as you consider how to effectively prevent the neutral circulating current.