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From: John Woodgate
Subject: Re: Strange failure mode in switchmode power supplies: Followup
Date: Sat, 21 Sep 2002 15:31:13 +0100
Organization: JMWA Electronics Consultancy
Reply-To: John Woodgate
NNTP-Posting-Date: Sat, 21 Sep 2002 17:11:21 +0000 (UTC)
X-Newsreader: Turnpike (32) Version 4.01 <5Z8C9wtxbnpWyFnyfFzqmVF739>
I read in sci.electronics.design that Tony Williams
wrote (in <email@example.com.
uk>) about 'Strange failure mode in switchmode power supplies:
Followup', on Sat, 21 Sep 2002:
>In article ,
>> No. US local distribution is by single-phase overhead MV to 'pole-pig'
>> transformers feeding one to four dwellings, normally. The secondary is
>> 120 V-0-120 V, with the neutral earthed at every service entrance. High-
>> power loads are connected across the 240 V supply.
> The OP signs himself as Peter Gutmann .
> If correct shouldn't his mains distribution be similar to the UK's?
I don't know what gave me the impression he was in the USA. I don't know
about power systems in NZ. It may be very different in rural areas from
Regards, John Woodgate, OOO - Own Opinions Only. http://www.jmwa.demon.co.uk
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