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06-27-2009, 10:39 PM
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#21
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Senior Member
Join Date: Jun 2009
Location: U.S.
Posts: 133
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Quote:
Originally Posted by steelersman
you were saying that the 2 poles on a generator were mounted 90 degrees apart. I'm saying I don't think so. I'd say if their mounting has anything to do with it I'd say that they are mounted 180 degrees apart since 120/240 is 180 apart from each other. That's all.
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I thought you might have the answer. I remember seeing poles 90 degrees out but like you said they would have to be 180 out. It's been a while. Still love the pic I grin every time I see that dude.
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06-27-2009, 10:40 PM
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#22
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Moderator
Join Date: Jan 2007
Location: Beautiful Cumberland Valley, in PA
Posts: 5,846
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Quote:
Originally Posted by heel600
and it's exactly 180 because each phase is wound in opposite directions
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"each phase". You're talking about phases like there's more than one. Get phases out of your head. The residential supply is more properly "split-phase".
__________________
-Marc, ABC, XYZ, PhD, 1-2-3
-Someday, I'll wear pajamas in the day time.
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06-27-2009, 10:40 PM
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#23
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Senior Member
Join Date: Mar 2009
Location: Lake Ridge, Virginia
Posts: 2,138
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Quote:
Originally Posted by heel600
I thought it was called single phase because 120/240 comes from just one phase, and it's exactly 180 because each phase is wound in opposite directions
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it's a single coil so it can't be wound in opposite directions. A single coil with 2 ends as any coil will have. And each end is your hot leg with the neutral/ground being tied to the center of the coil.
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06-27-2009, 10:41 PM
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#24
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Senior Member
Join Date: Feb 2008
Location: Atlanta, Ga/Hamilton, Al
Posts: 1,840
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Quote:
Originally Posted by heel600
I thought it was called single phase because 120/240 comes from just one phase, and it's exactly 180 because each phase is wound in opposite directions
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sigh.... 
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06-27-2009, 10:41 PM
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#25
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Moderator
Join Date: Jan 2007
Location: Beautiful Cumberland Valley, in PA
Posts: 5,846
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Quote:
Originally Posted by Loose Neutral
I thought you might have the answer. I remember seeing poles 90 degrees out but like you said they would have to be 180 out. It's been a while. Still love the pic I grin every time I see that dude.
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It's the same generator supplying everyone... there's no special phase shifting going on. Everyone is supplied from the same 3-phase circuit from the PoCo.
__________________
-Marc, ABC, XYZ, PhD, 1-2-3
-Someday, I'll wear pajamas in the day time.
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06-27-2009, 10:44 PM
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#26
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Senior Member
Join Date: Jun 2009
Location: U.S.
Posts: 133
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My head is starting to shift phases. I need some more alcohol. 
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06-27-2009, 10:44 PM
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#27
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Senior Member
Join Date: Feb 2008
Location: Atlanta, Ga/Hamilton, Al
Posts: 1,840
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Quote:
Originally Posted by Loose Neutral
I thought you might have the answer. I remember seeing poles 90 degrees out but like you said they would have to be 180 out. It's been a while. Still love the pic I grin every time I see that dude.
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A generator with poles at 90 degrees would shake itself to pieces 
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06-27-2009, 10:46 PM
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#28
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Moderator
Join Date: Jan 2007
Location: Beautiful Cumberland Valley, in PA
Posts: 5,846
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Quote:
Originally Posted by InPhase277
A generator with poles at 90 degrees would shake itself to pieces |
It might also start backwards about 50% of the time.
__________________
-Marc, ABC, XYZ, PhD, 1-2-3
-Someday, I'll wear pajamas in the day time.
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06-27-2009, 10:46 PM
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#29
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Senior Member
Join Date: Mar 2009
Location: Lake Ridge, Virginia
Posts: 2,138
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Quote:
Originally Posted by Loose Neutral
Still love the pic I grin every time I see that dude.
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Do you think I should use this one instead?
crazy.jpg
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06-27-2009, 10:48 PM
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#30
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Senior Member
Join Date: Jun 2009
Location: U.S.
Posts: 133
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Damn that's one crazy mo fo. no like the one you got.
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06-27-2009, 10:48 PM
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#31
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Senior Member
Join Date: Mar 2009
Location: Lake Ridge, Virginia
Posts: 2,138
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Quote:
Originally Posted by MDShunk
It's the same generator supplying everyone... there's no special phase shifting going on. Everyone is supplied from the same 3-phase circuit from the PoCo.
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What I'd like to know if someone can post a diagram or pic of the primary side of these x-formers? Are there 3 coils or just 1 or what?
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06-27-2009, 10:49 PM
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#32
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Senior Member
Join Date: Feb 2008
Location: Atlanta, Ga/Hamilton, Al
Posts: 1,840
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Quote:
Originally Posted by Loose Neutral
My head is starting to shift phases. I need some more alcohol. |
Seriously, get the idea of "phase" out of your mind when thinking of single phase. Think of these examples that I posted previously: Left and right... north and south.... blue and yellow.... up and down... male and female... day and night... positive and negative....
While these things are GEOMETRICALLY 180 degrees opposite, they are not "out of phase". They are perfectly and naturally "in phase".
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06-27-2009, 10:53 PM
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#33
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Senior Member
Join Date: Jun 2009
Location: U.S.
Posts: 133
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It's hard when you do mainly 3 phase work and have 3 hot's and a nuetral. Then on single phase you have 2 hot's and a neutral. I know it's single phase. Just doesn't sound right.
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06-27-2009, 10:54 PM
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#34
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Senior Member
Join Date: Mar 2009
Location: Lake Ridge, Virginia
Posts: 2,138
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Quote:
Originally Posted by Loose Neutral
It's hard when you do mainly 3 phase work and have 3 hot's and a nuetral. Then on single phase you have 2 hot's and a neutral. I know it's single phase. Just doesn't sound right.
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Well just think with 3 phase you actually have 3 coils on the secondary side of the x-former, but with single phase you only have 1 coil on the secondary side.
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06-27-2009, 10:56 PM
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#35
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Senior Member
Join Date: Feb 2008
Location: Atlanta, Ga/Hamilton, Al
Posts: 1,840
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Quote:
Originally Posted by steelersman
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Looks like Arnold in 'Total Recall'
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06-27-2009, 10:59 PM
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#36
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Senior Member
Join Date: Mar 2009
Location: Lake Ridge, Virginia
Posts: 2,138
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Quote:
Originally Posted by InPhase277
Looks like Arnold in 'Total Recall' |
huh, now that you mention it I can see a slight resemblance.
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06-27-2009, 11:00 PM
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#37
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Senior Member
Join Date: Jun 2009
Location: U.S.
Posts: 133
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Looks like he got some type of drug problem. He's on something.
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06-27-2009, 11:00 PM
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#38
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Senior Member
Join Date: Jun 2009
Location: U.S.
Posts: 133
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Damn those teeth are rough
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06-27-2009, 11:03 PM
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#39
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Senior Member
Join Date: Mar 2009
Location: Lake Ridge, Virginia
Posts: 2,138
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Quote:
Originally Posted by Loose Neutral
Damn those teeth are rough
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I know he could use a serious haircut. That alone would greatly help him out!
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06-27-2009, 11:04 PM
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#40
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Senior Member
Join Date: Feb 2008
Location: Atlanta, Ga/Hamilton, Al
Posts: 1,840
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Separated at birth:
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