Another suggestion is to check your wiring for two things.
First, check to be sure that any hot wire has a return wire next to it. I mean physically next to it. No space between. When the wires spread they form an open area. This open area is akin to an antenna. Now with clean 50 or 60 Hz, it's not a large enough antenna to really cause problems. But with the inverter's modified sine, the harmonic frequencies are high enough to radiate from such an antenna and interfere with other equipment. The only place you can let them spread is in your grounded junction box or breaker panel. Also check the phone lines for similar open areas. They can act as receiving antennas.
You should also check for loose screws or broken or loose wires. These can cause arcing. Arcs will also cause interference, but more importantly they're a danger due to their potential to cause fire.
Good luck with it.
system is 24volt yes inverter is modified sine wave. yes phone line is decidedly dodgy, I am at the outer limit to even get adsl. 5.5km to end of my road let alone the actual exchange. Phonline is completely underground and actually goes underground through a creek and they are constantly digging it up and messing with it. Phone line can get a bit noisy at times especially after rain.
The phone line as far as i can see is not connected to anything in the house, it comes straight from a pit box outside the house to the plug, this can be visibly followed as it is not in ceiling or walls, just stapled along the inside.
House has no distribution box or fuse box, just a home done string in ceiling that runs a half dozen lights and another string for some powerpoints, these join up and go through a fuse to terminate in a plug to plug directly into either inverter or generater. As the powerpoints are not where the computer or TV are setup, these are run directly from either inverter or generater(extension cords and power boards everywhere, basicly a mess)
The phoneline is the only outside service we have, water comes gravity feed from a permanant spring a couple of hundred metres up the hill in poly pipe. There are copper pipes for the hot water and gas but these are not underground.
I've got the phone company coming out today sometime(supposedly) so i'll see what happens then.
In the meantime i'll get out to the shed and try rustling up a galv rod or something and try to ground this thing better.
What about just hooking up to a galvanized steel post that holds the house up? beams are wood, but i doubt it goes in 3 feet.
Thanks all for advice,
Ian SE QLD AUSTRALIA.*OFF-GRID*.RE:2x4xT105@24v./450Ah@24v IN:240w.PV,backup:Genset/charger24v@10amp cont. OUT:Mod.Sine Inverters: 1500w/4500w/2000w & 350w. [ Parent ]
If you are going to drive in a ground rod, at least use a proper copper clad ground rod. No idea why the other poster said galvanized? Copper clad is the right thing to use.
Sorting good advice from bad is tough. Too much misinformation goes unchallenged here trying to be "PC" and nice, I guess.
Its your baby so take the advice you like.
Tom
"Education consists mainly of what we have unlearned."--Mark Twain[ Parent ]
Also this dropping of the adsl happens even when I am running everything off the genset if i power on the grounded inverter at the same time as the satelite TV is on. (genset is grounded in a similar fashion but is a good 50metres away from house)
As in just turning on this inverter, even with nothing plugged into it.
If I turn it on while the satelite TV box is powered OFF, the ADSL is OK
If I remove the ground wire from the inverter all is GOOD.
Definately the grounding seems to be the issue.
Phone tech is supposedly coming today sometime to investigate, but being friday(almost afternoon) I'm not holding my breath....
Ian.SE QLD AUSTRALIA.*OFF-GRID*.RE:2x4xT105@24v./450Ah@24v IN:240w.PV,backup:Genset/charger24v@10amp cont. OUT:Mod.Sine Inverters: 1500w/4500w/2000w & 350w. [ Parent ]
phone guy rang instead of coming out, to be expected on a friday arv!
He sounded bewildered when I attempted to explain. But then he said something like I need a "twisted cable pair" running from phone outlet to modem.
However I drove a galv star picket in a few feet and grounded the inverter to that and it seems to at least improved the situation.
Now the ADSL only drops when I power up AUSTAR sat TV but then it comes good after a couple of minutes.
I can live with that....
especially seemin' it's friday arv and nearly drinkin' time ;p
cheers,
Ian.. SE QLD AUSTRALIA.*OFF-GRID*.RE:2x4xT105@24v./450Ah@24v IN:240w.PV,backup:Genset/charger24v@10amp cont. OUT:Mod.Sine Inverters: 1500w/4500w/2000w & 350w. [ Parent ]
