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Old 12-12-2016, 01:10 PM   #21
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Quote:
Originally Posted by dmxtothemax View Post
QUOTE - And after its inverted to a single phase, - QUOTE.

It is not necessary to convert 3 phase to single phase.
Single phase can be obtained by running from any of the three phases to neutral.
So the question is does your genny have a neutral ?
some do some don't.
If it does not ?
Then you can use a transformer.
Re: the highlighted area, we don't know that. We don't know what his voltages are; facts not in evidence.

But it is true, you do NOT need an inverter to go from 3 phase single phase, every 3 phase system is comprised of (essentially) 3 x 1 phase systems, either line-to line or line-to-neutral, depending on what your voltage distribution system is.

By theay, the other points are valid too. 2 houses 4kW single phase is going to mean unbalanced loading which causes thermal stress on the generator windings. That then will mean you cannot use the full capacity of the generator at 12kW, likely 8-10kW max, which you are exceeding. I agree that 20kW is a better choice.
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Old 12-12-2016, 02:31 PM   #22
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Depending on the winding configuration, many three phase generators can be rewired to deliver single phase output at roughly 56℅ of the rated three phase power.
Or you can use a Leyton 3-2 transformer setup to get the full generator output as single phase.

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Old 12-12-2016, 04:36 PM   #23
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Depending on the winding configuration, many three phase generators can be rewired to deliver single phase output at roughly 56℅ of the rated three phase power.
Or you can use a Leyton 3-2 transformer setup to get the full generator output as single phase.

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I THINK based on the size of his generator this is most likely not a viable option as I doubt this is a 12 lead unit?
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Old 12-12-2016, 06:18 PM   #24
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That still leaves the Leyton 3-2 configuration, although that will not be cheap.

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Old 12-12-2016, 06:24 PM   #25
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That still leaves the Leyton 3-2 configuration, although that will not be cheap.

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You have a link for this I have searched and very little came back, one Mike Holt thread.
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Old 12-12-2016, 06:28 PM   #26
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You have a link for this I have searched and very little came back, one Mike Holt thread.
Sure. Buried in the Mike Holt thread:

http://wikivisually.com/wiki/User:Hugh_Leyton/sandbox

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Old 12-12-2016, 06:33 PM   #27
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Sure. Buried in the Mike Holt thread:

http://wikivisually.com/wiki/User:Hugh_Leyton/sandbox

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I saw that site while searching, but I saw the SANDBOX and figured it was some DIY site for building kids toys, Thanks
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Old 12-12-2016, 06:36 PM   #28
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About JBoen
What is your electrical related field/trade:
Generator set technician and mechanic
General Location
Jambi, Indonesia

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Old 12-12-2016, 06:37 PM   #29
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I saw that site while searching, but I saw the SANDBOX and figured it was some DIY site for building kids toys, Thanks
The only problem is that some of the diagrams do not work. I believe there are useful diagrams in the MH thread.

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Old 12-12-2016, 10:18 PM   #30
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I looked a little further into this Leyton 3-2 arrangement, and I found this document. If you google "Leyton 3-2 transformer", the first result is a Mike Holt thread. If you follow that link, then go to page 1 of that thread, then follow another link to an earlier thread, that's where I found this document. Anyway, this document has good diagrams and explains the whole thing pretty well. Interesting stuff.
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Old 12-12-2016, 11:23 PM   #31
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I looked a little further into this Leyton 3-2 arrangement, and I found this document. If you google "Leyton 3-2 transformer", the first result is a Mike Holt thread. If you follow that link, then go to page 1 of that thread, then follow another link to an earlier thread, that's where I found this document. Anyway, this document has good diagrams and explains the whole thing pretty well. Interesting stuff.
Sorry to tell you, but you posted an abbreviated form of the link, not the actual link.
You copied from the visible text of the MH thread, not the link, I think.

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Old 12-13-2016, 10:55 AM   #32
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So it would seem. Can't seem to do anything about it from my phone, I'll try and remember to post a working link when home.

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Old 12-13-2016, 11:04 AM   #33
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So it would seem. Can't seem to do anything about it from my phone, I'll try and remember to post a working link when home.

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FYI, if you quote the reference to Reply and then open the quote for editing you can directly access the full URL.

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Old 12-15-2016, 05:15 AM   #34
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Old 12-15-2016, 05:17 AM   #35
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Alright, so the final decision is to upgrade the genset to 25kva. I was thinking transformer will be the solution but i was wrong. Thank you all for responses.

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