Re: [pvusers] RFI Inverter Problems, part 2

[Jim La Joie <jimjola@cts.com>]

on 11/8/02 4:07 PM, Bill Neill at solarbill2002@yahoo.com wrote:

> Some more info.
> I live in San Diego, in a camper on a pickup truck with the 5 pvs on
> the roof. I am using a POWER STAR 1300 WITH 0.9 A Q CURRENT DRAW.
> This provides me with power for the frige, a small Sanyo (3' x 2') and
> TV and Macintosh with BestData 56k external modem.
> 
> I noticed most of you were attacking the phone line, not the source of
> RFI, the inverter. BTW it is my 3rd one in a year, all have come up
> dead or sparked inside the case - is this just a BAD PRODUCT OR WHAT?
> At $300 it is expected to work better than that.
> 
> Yes I had considered using ferite beads in the output line of the
> inverter. BTW the am radio is not usable on ac due to the RFI.
> 
> Are they in violation of FCC part 15 rules?
> 
> Bill.
> 
> 
> --- Bill Neill <solarbill2002@yahoo.com> wrote:
>> I have 5  PV feeding 3 strings of 2 - 6 Volt ddc batteries making a
>> 12
>> Volt overall system.
>> 
>> The inverter makes so much RFI (radio frequency interference) that
>> the
>> telephone line can be very bad, so bad that the computer I am using
>> will connect only at 23k, but if I use the generator, I can get 44k.
>> No
>> wonder it has to slow down, it is the RFI that is killing me.
>> 
>> Any suggestions on how to control the RFI??
>> 
>> Bill Neill
>> 
>> 
>> __________________________________________________
>> Do you Yahoo!?
>> U2 on LAUNCH - Exclusive greatest hits videos
>> http://launch.yahoo.com/u2
>> 
> 
> 
> 
> __________________________________________________
> Do you Yahoo!?
> U2 on LAUNCH - Exclusive greatest hits videos
> http://launch.yahoo.com/u2
> 
> --*--*--*--*--*--*--*--*--*--*--*--*--*--*--*--*--*--*--*
> List sponsored by CREST/REPP
> http://solstice.crest.org/   http://www.repp.org/
> 
> 
I have used the Power Star and am currently using a Prowatt 1750. Both
modified sine wave. Neither had an effect on my connection speed. To limit
the RF interference I twisted the input cables as much as possible. Since I
was using 2/0 cables, there are not a lot of twists per foot, about two, but
that seems to limit the noise. My Macintosh, TV, VCR, DVD, Stereo, Printer,
all run fine on the modified sine wave.


--*--*--*--*--*--*--*--*--*--*--*--*--*--*--*--*--*--*--*
  List sponsored by CREST/REPP  
	http://solstice.crest.org/   http://www.repp.org/