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Re: 110, 115, 117, 120 or 125 VAC ??? (fwd)
From: Tesla List Owner[SMTP:listown-at-pupman-dot-com]
Sent: Sunday, January 04, 1998 2:55 PM
To: tesla-at-stic-dot-net
Subject: Re: 110, 115, 117, 120 or 125 VAC ??? (fwd)
---------- Forwarded message ----------
Date: Sat, 3 Jan 1998 09:33:21 -0700
From: huffman <huffman-at-tbcnet-dot-com>
To: Tesla List <tesla-at-pupman-dot-com>
Subject: Re: 110, 115, 117, 120 or 125 VAC ???
The story I held is that the power company has been increasing the voltage
over the decades. This lowers IR losses since for the same power delivered
the current will be lower. Way back when? the voltage was 110/220. It may
not seem like a big thing but spread over the grid it is a big deal. Maybe
there is some 'age' information associated with the name plate voltage
rating?
Dave Huffman
-----Original Message-----
From: Tesla List <tesla-at-pupman-dot-com>
To: 'Tesla List' <tesla-at-pupman-dot-com>
Date: Friday, January 02, 1998 11:11 PM
Subject: 110, 115, 117, 120 or 125 VAC ???
>
>From: Adam[SMTP:absmith-at-tiac-dot-net]
>Sent: Friday, January 02, 1998 7:23 PM
>To: tesla list
>Subject: 110, 115, 117, 120 or 125 VAC ???
>
>
>I am curious about mains voltage and equipment ratings. I have
>transformers, computers, and all kinds of appliances that can't seem to
>agree on what voltage they would like to be given. 110, 115, 117, 120
>and 125 seem to be the most popular values, but why so many subtle
>variations? Are these different standards for different parts of the
>country? My home's service clearly measures 120.0 VAC, but my newest
>variac is calibrated for 115V input. That's why I ask.
>
>Ditto for the 220, 225, 230, 240 VAC appliances.
>
>-Adam
>
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>Epoch, Inc. Digital Music Project
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