Re: (ET) inverter - Grid Interconnect - Running Powertools

["Markus" <ev lorch net>]

My (solar) Inverter has an automatic disconnect, as soon as the grid looses
power the
inverter also disconnects itself and does not feed power back into it (for
the below mentioned safety reasons). If I want to power some devices while
the grid is offline I would need to run separate lines to them. 

About power tools: my 36V redi line powers all my tools with universal
motors, it will
not produce enough power to get my table saw (small induction motor)
running, even
though it could probably keep it running. I even used it to power my 1500W
leaf
blower, in that case it will work even when overloaded (will lower the RPM
of both,
the genset and the leaf blower, prob. get hotter and the frequency will be
off but that
should but not hurt the genset when done with reason and the universal 
motor
of the
leaf blower doesn't care about the frequency). I had a discussion with Lee
Hart (EV list) 
who also ownes one of these and he thought the same.
I had great successes running my small (1kw) chain/pole saw off of the
elec-trak with
the redi line. I got my 36V redi line (new) about 2 years ago from pacific
industrial, maybe they still have some http://www.pacificindustrial.com/

BTW, I have a 5kw solar inverter which produces on a sunny day about 3x the
energy my house uses, in average about 2x. I feed all of my surplus into 
the

grid and buy from the Grid when the sun don't shine. Last week, for the
first
time in history, solar energy was cheaper to buy on the power market than
atomic energy. (Our remaining atomic reactors had to reduce power output 
due
to river water temperatures, so atomic power became scarce and expensive).


> -----Original Message-----
> From: elec-trak-bounces cosmos phy tufts edu 
> [mailto:elec-trak-bounces cosmos phy tufts edu] On Behalf Of JBR
> Sent: Samstag, 5. August 2006 04:24
> To: elec-trak cosmos phy tufts edu
> Subject: Re: (ET) inverter - Grid Interconnect - Home Power Magazine
> 
> 
> Home Power Magazine had LOTS of articles on Inverters, Grid-Tie and 
> Disconnects and similar safety things.  
> 
> We all might try unsafe, TEMPORARY, or emergency hacks ...
> 
> BUT, we should keep trying to educate all on safest practices 
> - such as the 
> Disconnect Switches available at Home Depot/Lowe's etc, for 
> reasonable 
> prices.  
> 
> Many people don't consider that if accidentally switched,  
> their backyard 
> generator power might feed back into the grid, and hurt/kill 
> someone working 
> on repairing lines somewhere.
> 
> On Friday 04 August 2006 08:00 pm, Travis Creswell wrote:
> > I couldn't have said it better.  It's the propagation of 
> crap like this
> > that injures linemen and gives utilities great ammo to 
> fight the grid
> > interconnection solar and wind systems.
> >
> > So please don't do it.
> >
> > Travis Creswell
> > Ozark Energy Services
> >
> > -----Original Message-----
> > From: elec-trak-bounces cosmos phy tufts edu
> > [mailto:elec-trak-bounces cosmos phy tufts edu] On Behalf 
> Of David Roden
> > Sent: Friday, August 04, 2006 5:22 PM
> > To: elec-trak cosmos phy tufts edu
> > Subject: Re: (ET) inverter
> >
> > On 4 Aug 2006 at 15:22, David C Robie wrote:
> > > I feed power into both legs of my 220 using the 220V
> > > 30A electric dryer and EV charge outlet in my garage.
> >
> 
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