Ie: fluros flickering, motors in Fridges turning on/off
they would be making some nasty stuff going back to the inverter.
i would like to help protect by placing some surge dampening on the inverter output
woould a good quality surge/power board work?
Funny, never saw anyone claim this to be a problem until this post?
My thought is you are over thinking things. Seeing problems where none exist, etc.
I could be wrong but it just doesn't seem like it would be a problem in quality equipment. And, if it is a problem in cheap equipment the fix is probably simply buy good gear.
Maybe you have a link to information about this?
Always curious about new information.
Cheers.
TomW
Now, if you get an inverter made by Ralph's Inverters, you might have a problem.
Doug
In a sinewave inverter, the output impedance ~should be~ low for either the
goes-inta' or the goes-outa direction of current.
If an inverter is making AC and gets connected to another AC source, like
the grid or a generator, then it's called "backfeed", which is sometimes
hard to protect from, but again, a good inverter will have "backfeed protection"
and shut off when it sees high current at the wrong time in the AC cycle.
Spikes can be helped by different methods like MOVs and stuff, if that's what
you're talking about.
boB
the inverter i have bought is a new 24vdc 3kw cont rated (6kw surge) for only $400 AU. so maybe a elcheapo!
yes maybee i`m looking for problems that simply is not there.
(i have a 12volt 3kw cont rated inverter) and it has ben happy for 3 year running 24/7 onthe fridge-freezer / fluro lights /PC`s etc)
so yes maybe it`s in my mind
MOV`s yes thought about them acroos the AC but dont they go short cct if overvoltaged (ie spike was absorbed by them?)
dont fluro ballasts produce evil back emf when the balast collaspes?
or should i take a chill pill...
Cheers...Richard
if you really think the voltage spike could damage the inverter, then find an old motor run capacitor and a make a low pass filter from two additional inductors.
Beyond adding a MOV I would do nothing and unless you really know what you are doing the MOV may be best avoided or already incorporated.
Capacitive loading on simple msw inverters will probably tax the protection circuits to the limit or defeat them. Power factor correction capacitors in lamp ballasts are best removed if you must use them on msw. Power factor correction doesn't work on step waveforms as it does on sine waves.
Flux