Posted by BobG on September 3, 2009, 2:43 pm
> Alas, the KAWs only work for the more common (in the US) 120 volt
> circuits. Bad Things [tm] may happen if you try them on the
> higher voltage.
==========================
==================
Is there a UK version that works on 240?
Posted by harry on September 3, 2009, 6:10 pm
> > circuits. Bad Things [tm] may happen if you try them on the
> > higher voltage.
> ===========================================
> Is there a UK version that works on 240?
There certainly is. Our local librarys (Herefordshire) lend them out
the same way as books. Measures Volts, Current, Kwh, frequency, Kva,
power factor and the cost if you put in the price of electricty.
It's really usefull for stuff like fridges (ie on only
intermittantly). I borrowed one and worked out a full breakdown of
where all my power is going to.
I think if you need to buy one they're about 20. But I'm too mean to
buy one. :-)
Posted by Neo on September 3, 2009, 9:56 pm
> >The actual load on a battery recharger is normally not uniform
> >and the max circuitry load required by the battery recharger
> >is for the max current/power drain during a recharging cycle
> >which will vary over time. I wish I had a Aptera, a Leaf, and a Volt
> >to test. I could put a kill-o-watt meter between the wall outlet
> >and battery recharger and monitor the power drain from a
> >full recharge cycle... sigh.
> Alas, the KAWs only work for the more common (in the US) 120 volt
> circuits. Bad Things [tm] may happen if you try them on the
> higher voltage.
> --
> _____________________________________________________
> Knowledge may be power, but communications is the key
> dan...@panix.com
> [to foil spammers, my address has been double rot-13 encoded]
I believe all the electric/plug in vehicles schedule for
released in the USA in the near future will have
the option for using a 120VAC recharger (albeit it
would be the slow 8-10 hour recharging cycling)
which the KAW could monitor and measure. Alas,
Your assessment that bad things would happen
if the KAW were connect to the fast recharger units.
It is also likely that the energy efficiency for the
slow recharger unit would be different from the fast
recharging unit.
Another all electric vehicle energy efficiency
that should make an interesting comparsion to
the Nissan Leaf will be the 2010 BYD e6.[1]
Wikipedai says that the BYD e6 energy
efficiency is about 18kwh/62 miles which
roughly works out to be 29kwh/100miles -
25% more energy than the expected Nissan Leaf
energy cost - but the BYD e6 will go about 100% farther
on a charge ( about 200 miles/full charge).
The BYD e6 is expected to cost $0,000.
[1]
http://en.wikipedia.org/wiki/BYD_e6
http://www.tlitb.org/report-byd-pushes-american-ev-launch-ahead-to-2010/
Posted by News on September 1, 2009, 8:55 am
> Carbon fibre. Don't think so. Doesn't lend itself to mass
> production. Hence many of the problems with the Boeing Dreamliner.
The Boeing is not mass-produced. There is no problem mass producing carbon
fibre. The auto makers stuck to steel because they knew it and it was cheap.
Posted by harry on September 1, 2009, 6:41 pm
> > Carbon fibre. Don't think so. Doesn't lend itself to mass
> > production. Hence many of the problems with the Boeing Dreamliner.
> The Boeing is not mass-produced. There is no problem mass producing carbon
> fibre. The auto makers stuck to steel because they knew it and it was cheap.
The problem is in laying up the composite structure. Making of bucks
and moulds etc.
We have had composite cars over here for years (UK). But only
expensive ones.
http://en.wikipedia.org/wiki/Reliant_Scimitar
> circuits. Bad Things [tm] may happen if you try them on the
> higher voltage.