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Author Topic: Two Phase???  (Read 20223 times)

Mike Sokol

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Re: Two Phase???
« Reply #40 on: February 05, 2016, 03:41:58 PM »

All modern systems are 3 phase if you go far enough up stream.
If you want to make your head hurt, try getting it wrapped around something called a Scott-T Transformer invented back in 1890. This gadget would convert 2-phase/180-degree power to 3-phase/120-degree power or visa-versa without any rotating parts. https://en.wikipedia.org/wiki/Scott-T_transformer

Jeff Bankston

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Re: Two Phase???
« Reply #41 on: February 05, 2016, 04:01:24 PM »

If you want to make your head hurt, try getting it wrapped around something called a Scott-T Transformer invented back in 1890. This gadget would convert 2-phase/180-degree power to 3-phase/120-degree power or visa-versa without any rotating parts. https://en.wikipedia.org/wiki/Scott-T_transformer
the result of having too much time on ones hand and gettin ideas
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David Buckley

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Re: Two Phase???
« Reply #42 on: February 05, 2016, 08:03:44 PM »

If you want to make your head hurt
In the head hertz department (sorry!), its not widely appreciated that a delta/wye transformer gives a phase shifted output, which is, I suspect, a clue to how that Scott transformer thing I'm not even going to look at works.
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Scott Holtzman

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Re: Two Phase???
« Reply #43 on: February 06, 2016, 02:46:48 AM »

In the head hertz department (sorry!), its not widely appreciated that a delta/wye transformer gives a phase shifted output, which is, I suspect, a clue to how that Scott transformer thing I'm not even going to look at works.

ELI the ICEman - Same theory different application
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Scott AKA "Skyking" Holtzman

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Jeff Bankston

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Re: Two Phase???
« Reply #44 on: February 06, 2016, 06:49:29 AM »

I bet you can't guess wye I like Delta !
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Mike Sokol

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Re: Two Phase???
« Reply #45 on: February 06, 2016, 07:25:34 AM »

I bet you can't guess wye I like Delta !

Like I said... I was sure this topic would bring out the best AND the worst comments...  :o

Jonathan Johnson

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Re: Two Phase???
« Reply #46 on: February 07, 2016, 11:15:33 PM »

Like I said... I was sure this topic would bring out the best AND the worst comments...  :o

Yes, it's a two-phased* thread.

*(spoken with a soft S)
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Stop confusing the issue with facts and logic!

Mike Sokol

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Re: Two Phase???
« Reply #47 on: February 20, 2016, 07:32:25 AM »

Stephen Swaffer

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Re: Two Phase???
« Reply #48 on: February 20, 2016, 05:05:23 PM »

Personally, I feel like this is an accurate and descriptive term.  Phase to phase voltage is typically 208 (220 nominally),   , so when you only have one phase available it is 220 (240 actually)-but it is "split" into 2 110/120 volt legs.  I understand that the term is often used with motors and that the mechanism involved there is different-but I don't think it leads to confusion.

I wish that article at least included the acknowledgement that 3 phase and split phase are different enough that there can be different considerations depending on the supply.  Obviously, going into depth on the difference would be well beyond the scope of the article.
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Steve Swaffer

David Buckley

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Re: Two Phase???
« Reply #49 on: February 20, 2016, 05:07:47 PM »

Can we call it settled then?  Split phase???
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ProSoundWeb Community

Re: Two Phase???
« Reply #49 on: February 20, 2016, 05:07:47 PM »


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