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Re: [Amps] Transformer Efficiency Question?

To: k7fm@teleport.com, amps@contesting.com
Subject: Re: [Amps] Transformer Efficiency Question?
From: "wc6w@juno.com" <wc6w@juno.com>
Date: Sun, 2 Oct 2005 13:20:41 GMT
List-post: <mailto:amps@contesting.com>
Hi Colin,
  Large transformers are very efficient unless... made specifically for the ham 
market!
  
  Any commercial 120-240 multi-KW unit should exhibit less then 5% loss.

  Sorry for the tardy reply but, this was buried in my inbox under RS-232 
chatter.

73 & Good morning,
  Marv WC6W

-- Colin Lamb <k7fm@teleport.com> wrote:
I have a 6.5 KW 120 volt Onan generator.  I have been told that because it uses 
a transformer as part of a regulator system that it is not recommended to 
reconnect to produce 240 output.  

Question: What sort of efficiency am I looking at to use a 120 to 240 
transformer?  Is there a particular type that might be more efficient?  Would I 
be looking at 15% losses?

Note:  This is an amps question, because I may run my 240 amplifier off the 
generator.  

73,  Colin  K7FM
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