On Jun 7, 10:24*pm, "The Medway Handyman"
wrote:

Getting to the point where an inverter starts to make more & more sense.
Phone charger, drill chargers, light bar charger etc.

Looking at thesehttp://www.tlc-direct.co.uk/Products/TLINV300.html

It mentions in the spec "These inverters generate a modified sine wave,
which although not perfect, is considerably superior to the square waves
which are produced by most other inverters".

Is that a good thing?

It also mentions Peak power - 1000w *Does that mean it would run an 800w
angle grinder for long enough to cut off a padlock or wheel clamp?

If pk output is 1kw, continuous output will be something like 300w, as
has been said.

Now an 800w angle grinder will consume a bit over 1kVA running due to
less than ideal power factor, and probably several times that during
startup. So your invertor is inadequte by a factor of 3 or more.

You can still run it on the inveror by using a dropper - but the
performance would be so dire the discs just cease to cut below a
certain speed, so you'd be there all day.

So no.

Oh, all cheap modern invertors produce msw, you wont find square waves
anywhere unless you go back several decades. MSW increases power
dissipation in motors, making matters worse.

For a padlock you could probably use a die grinder + a few discs.


NT