NO THEY'RE NOT. An autotransformer doesn't provide isolation and you cannot have a 1:1 ratio autotransformer.
On 02-Feb-11 00:06, Bob Jackson wrote:
In some corners, they're also called "autotransformers". My 5A one has served me well for anything I've ever tackled or will tackle. I keep the variac plugged into it. Bob AG5X ------------------------------------------------------------------------------------------------------------------------ *From:* Nigel Gunn G8IFF/W8IFF <[email protected]> *Cc:* Drake Forum <[email protected]> *Sent:* Tue, February 1, 2011 5:49:14 PM *Subject:* Re: [Drakelist] Test equipment and getting started Because the original poster said he wanted to use a GCFI. It's not needed with a double wound transformer. Do building sites use isolating transformers for power tools? In Europe they have to use a 55-0-55V transformer for portable tools by law. I always got my isolating transformers from a builders supply depot. On 01-Feb-11 23:45, [email protected] <mailto:[email protected]> wrote: > Why is it recommended to use the GCFI? > 73, > Lee > _______________________________________________ Drakelist mailing list [email protected] <mailto:[email protected]> http://mailman.zerobeat.net/mailman/listinfo/drakelist
-- Nigel A. Gunn, 1865 El Camino Drive, Xenia, OH 45385-1115, USA. tel +1 937 825 5032 Amateur Radio G8IFF W8IFF (was KC8NHF 9H3GN), e-mail [email protected] www http://www.ngunn.net Member of ARRL, GQRP #11396, QRPARCI #11644, SOC #548, Flying Pigs QRP Club International #385, Dayton ARA #2128, AMSAT-NA LM-1691, AMSAT-UK 0182, MKARS, ALC, GCARES, XWARN, EAA382. _______________________________________________ Drakelist mailing list [email protected] http://mailman.zerobeat.net/mailman/listinfo/drakelist
