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Posted by Existential Angst on October 28, 2009, 2:23 pm
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Awl --
In a thread I started in alt.home.repair (1920's wiring), a knowledgeable
fellow (Bud) asserted that 208 V/3 ph dominates the country.
Yet, I don't believe I have *ever* seen/heard anyone in these two ngs
reference 208 V, other than to ask about operating a 208 V machine at 240.
Other than me, in NYC, which *does* use 208 V..
Who else here has 208 V? Where are you located?
What is your impression of the relative predominance of 208 vs. 240, from
other people you know?
And, fwiu, even in places that are "barely" a part of NYC, like outer
Queens, Staten Island, they have a mix of 208/240.
--
EA/Mr. PV'd
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Posted by Existential Angst on October 28, 2009, 2:29 pm
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Some of you may find this link, posted by Jules in that thread, very
inneresting.
Gary Lucas would proly fall over in a safety-induced paroxysm!
(http://en.wikipedia.org/wiki/Ring_circuit
--
EA
> Awl --
>
> In a thread I started in alt.home.repair (1920's wiring), a knowledgeable
> fellow (Bud) asserted that 208 V/3 ph dominates the country.
> Yet, I don't believe I have *ever* seen/heard anyone in these two ngs
> reference 208 V, other than to ask about operating a 208 V machine at 240.
> Other than me, in NYC, which *does* use 208 V..
>
> Who else here has 208 V? Where are you located?
> What is your impression of the relative predominance of 208 vs. 240, from
> other people you know?
>
> And, fwiu, even in places that are "barely" a part of NYC, like outer
> Queens, Staten Island, they have a mix of 208/240.
>
> --
> EA/Mr. PV'd
>
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Posted by Randy on October 28, 2009, 3:41 pm
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On Wed, 28 Oct 2009 14:23:41 -0400, "Existential Angst"
>Awl --
>
>In a thread I started in alt.home.repair (1920's wiring), a knowledgeable
>fellow (Bud) asserted that 208 V/3 ph dominates the country.
>Yet, I don't believe I have *ever* seen/heard anyone in these two ngs
>reference 208 V, other than to ask about operating a 208 V machine at 240.
>Other than me, in NYC, which *does* use 208 V..
>
>Who else here has 208 V? Where are you located?
>What is your impression of the relative predominance of 208 vs. 240, from
>other people you know?
>
>And, fwiu, even in places that are "barely" a part of NYC, like outer
>Queens, Staten Island, they have a mix of 208/240.
I have 240V three phase here only because I'm in a residential
neighborhood and have an open delta service. 120/208 is common
around here for true 3 phase in industrial parks. Bigger power users
go for 277/480V.
Thank You,
Randy
Remove 333 from email address to reply.
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Posted by Jim Stewart on October 28, 2009, 2:56 pm
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Randy wrote:
> On Wed, 28 Oct 2009 14:23:41 -0400, "Existential Angst"
>
>> Awl --
>>
>> In a thread I started in alt.home.repair (1920's wiring), a knowledgeable
>> fellow (Bud) asserted that 208 V/3 ph dominates the country.
>> Yet, I don't believe I have *ever* seen/heard anyone in these two ngs
>> reference 208 V, other than to ask about operating a 208 V machine at 240.
>> Other than me, in NYC, which *does* use 208 V..
>>
>> Who else here has 208 V? Where are you located?
>> What is your impression of the relative predominance of 208 vs. 240, from
>> other people you know?
>>
>> And, fwiu, even in places that are "barely" a part of NYC, like outer
>> Queens, Staten Island, they have a mix of 208/240.
>
> I have 240V three phase here only because I'm in a residential
> neighborhood and have an open delta service. 120/208 is common
> around here for true 3 phase in industrial parks. Bigger power users
> go for 277/480V.
Yup. All the residential I've ever seen (and that
would be on the west coast) has been 240 single
phase center tapped. The utility provides it by
putting a distribution transformer's primary between
2 phases of the 3 phases on the top of the power
pole.
That said, I can easily imagine a neighborhood
that was once predominantly commercial but now
residential being 208/120.
Post WWII commercial and industrial buildings
that I have seen have all been 208/120 3 phase
or 480/277 3 phase.
Pre WWII are whatever they are. I've seen open
delta and balanced delta with no neutral.
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Posted by Garlicdude on October 28, 2009, 3:16 pm
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Randy wrote:
>
> I have 240V three phase here only because I'm in a residential
> neighborhood and have an open delta service. 120/208 is common
> around here for true 3 phase in industrial parks. Bigger power users
> go for 277/480V.
>
> Thank You,
> Randy
>
> Remove 333 from email address to reply.
I live in a rural area east of Gilroy and have 240V 3 phase. I lost a Fanuc
servo drive a few years back. The Fanuc tech. said that 240V was about the
upper limit of what they like to see. Haven't lost any electronic stuff since
then so I thinking it was probably a weak component............fingers crossed!
Of course I was barely out of warranty when the servo went. $3K for what was
more than likely a few dollars worth of stuff.
Best,
Steve
--
Regards,
Steve Saling
aka The Garlic Dude ©
Gilroy, CA
The Garlic Capital of The World
http://tinyurl.com/2avg58
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>
> In a thread I started in alt.home.repair (1920's wiring), a knowledgeable
> fellow (Bud) asserted that 208 V/3 ph dominates the country.
> Yet, I don't believe I have *ever* seen/heard anyone in these two ngs
> reference 208 V, other than to ask about operating a 208 V machine at 240.
> Other than me, in NYC, which *does* use 208 V..
>
> Who else here has 208 V? Where are you located?
> What is your impression of the relative predominance of 208 vs. 240, from
> other people you know?
>
> And, fwiu, even in places that are "barely" a part of NYC, like outer
> Queens, Staten Island, they have a mix of 208/240.
>
> --
> EA/Mr. PV'd
>