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Pvusers Archive for January 2002
102 messages, last added Tue Nov 26 17:28:40 2002

[Date Index][Thread Index]

Re: [pvusers] Issue 34 re: EMI from SW4048



 
----- Original Message -----
From: "Brian McMaster" <bmcmaster@swrpc.org>
Sent: Tuesday, January 22, 2002 12:37 PM
Subject: [pvusers] Issue 34 re: EMI from SW4048
 
 
 
< Also, will the not-so-true sinewave pattern make a difference for other electronic appliances?
I'm an old-fashioned cheapskate who uses a modified sinewave inverter (Trace DR2412) for all AC loads that we find occasion to use.
Over the years I have found that many more appliances will work with less than pure sinewave than is generally credited.
The computer I'm using to write this e-mail with is one example.
The things that did  not work were a visitor's electric guitar amp - which was probably for the best - and A.C. motion sensors - which were a ridiculous proposition in the first place due to staggering conversion losses.
Before the advent of phone lines here we used to use C.B. radios (D.C.) for neighborhood communications and had no interference troubles if the inverter happened to be running.
 
 
I'm sure that adherents to the new "all A.C." installation mania would run into more trouble than I have.
 
The old adage regarding appropriate inverter use went something like this..."Small load, long run time, D.C. - large load, short run time, A.C."
Nowadays we've got folks who believe that it is neither advisable or practical to "hang a small D.C. circuit on a powerful battery array."
 
Hey kids! Let's buy more P.V. equipment so we can waste more power!!!! *
 
*Sorry...couldn't resist getting my swipe in on the recent on-list salesman flap!
 
Good luck with your project
 
Teri Farrow
 
Pushmataha County Small-Timer's Club.........doing nothing in a big way
 
 
Goat Hill.....powered by free-standing photovoltaics since 1995
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
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