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Tinker Guru Joined: 07/11/2007 Location: AustraliaPosts: 1904
Posted: 10:20am 30 Sep 2018
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Mark, I have those ferrite filters (suppressors?) fitted in my type of inverter. I have also re routed the wiring to the dash panel and made it as short as possible. The power wiring was re arranged so its distanced from the control wiring.
No more brown outs since .
There were also blackouts from my 6KW inverter. Fitted current transformer burden resistor (100 Ohm for mine) and they no longer occur. So this is important for some inverter layouts. The resistors are now in all 3 build from scratch inverters, should have remembered about them in the first place . Without that resistor just a small current spike sometimes could trigger the over current shut down. Once this resistor was in place the over current trip amps required re adjusting with the trim pot.
Also have lowered the low dropout setting to 48V. It was 50V before which I thought low enough for my lithium batteries, perhaps it was not and also sometimes triggering a blackout. Klaus
renewableMark Guru Joined: 09/12/2017 Location: AustraliaPosts: 1678
Posted: 08:41pm 30 Sep 2018
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Good stuff Klaus, with all what is going on in a small box it's no wonder that wiring can pick up signals. The Mad control board has the arduino which logs a fault, when my one was doing the restart no fault was ever logged, so I can only assume it just did a restart just like flicking the switch. While no normal loads were going in the dead of night and it was running at idle it appears just a small disturbance would trigger the restart. The system was left alone for 5 days while I went away so mostly running at idle all that time and no restarts, so appears to be fixed.Cheers Caveman Mark Off grid eastern Melb
renewableMark Guru Joined: 09/12/2017 Location: AustraliaPosts: 1678
Posted: 04:55am 05 Oct 2018
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Above my fork battery it has a big rangehood thingy I made to extract the fumes out to above the garage roof. It's fitted with 120mm computer fans at the top of the hood to pump them out, problem is the bearings seem to be failing after 4 weeks or so. The fan still spins but loses most of it's power and barely turns. The ones I used were $6 ebay crappo's can anyone suggest a better one that may be less prone to the acid mist?
(There is a pipe fitted to it at the top now btw)Edited by renewableMark 2018-10-06Cheers Caveman Mark Off grid eastern Melb
Tinker Guru Joined: 07/11/2007 Location: AustraliaPosts: 1904
Posted: 08:05am 05 Oct 2018
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Well Mark, cheap fans do not like sulfuric acid mist it seems . If this was my set up I'd reverse the fan thing. Seal the battery box and have the fan blow *in* fresh air and out at the top. Sorry if this is a bit too obvious .
Keep in mind that mist will try to corrode anything metal in its path up that fancy hood and pipe. So, use plastic pipe and keep the exit away from your TV antenna on the roof.Klaus
Madness Guru Joined: 08/10/2011 Location: AustraliaPosts: 2498
Posted: 08:36am 05 Oct 2018
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Probably due to cheap crap fans and running 24/7 they soon came to the end of there life. I would try a local computer shop, they will have fans for around double what you paid that should give a year or 2 at least. The failure will be just due to the sleeve type bearings in the cheap fans and lack of lubrication.There are only 10 types of people in the world: those who understand binary, and those who don't.
renewableMark Guru Joined: 09/12/2017 Location: AustraliaPosts: 1678
Posted: 08:39am 05 Oct 2018
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Thanks Klaus, yeah the pipe is PVC too, that hood is made from coreflute.
I did think of blowing air in, but with the shape of the hood it will make a funny swirl, maybe if it got fitted to one side pointing up 20 deg it could make a upward cyclone effect??
Reckon I'll just try a better fan first, before cutting holes in the hood.
I know Mad vents his battery as it's in a container, never asked him about his setup though.
Edit, And thanks Gary, you posted while I was typing.
I replaced one today with one from a dead pc at home, I'll get two different brands tomorrow and fit them then see which one lasts longer.Edited by renewableMark 2018-10-06Cheers Caveman Mark Off grid eastern Melb
Madness Guru Joined: 08/10/2011 Location: AustraliaPosts: 2498
Posted: 08:48am 05 Oct 2018
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I use a 240-volt squirrel cage type fan from a kitchen under bench extractor fan. The air does not flow through the motor. It has been running a couple years now and is controlled by a Solid State Relay connected to my charge regulator. When battery volts are above 51 it turns on and below 5.5 it turns off.There are only 10 types of people in the world: those who understand binary, and those who don't.
renewableMark Guru Joined: 09/12/2017 Location: AustraliaPosts: 1678
Posted: 08:56am 05 Oct 2018
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OK, bit like a car heater fan, that might be an idea, the fan blades could be at the top of the hood and the motor on the outside.
I'll see how a better fan goes first.Cheers Caveman Mark Off grid eastern Melb
renewableMark Guru Joined: 09/12/2017 Location: AustraliaPosts: 1678
Posted: 08:58am 05 Oct 2018
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Other than that the system is going perfectly, still no unwanted restarts.Cheers Caveman Mark Off grid eastern Melb
Madness Guru Joined: 08/10/2011 Location: AustraliaPosts: 2498
Posted: 09:28am 05 Oct 2018
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Yes you don't want any of those deadly restarts that we have not seen.
Car blower would be excellent for the job, they are made to last a very long time also.There are only 10 types of people in the world: those who understand binary, and those who don't.
renewableMark Guru Joined: 09/12/2017 Location: AustraliaPosts: 1678
Posted: 10:53pm 05 Oct 2018
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I hope you mean the 12v kind, not the type found in St Kilda.Cheers Caveman Mark Off grid eastern Melb
Madness Guru Joined: 08/10/2011 Location: AustraliaPosts: 2498
Posted: 11:41pm 05 Oct 2018
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I have no idea what you would find at St Kilda.There are only 10 types of people in the world: those who understand binary, and those who don't.
brucedownunder2 Guru Joined: 14/09/2005 Location: AustraliaPosts: 1548
Posted: 12:43am 06 Oct 2018
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Ha ha , the type ya get in St Kilda,,, come in spinner.
Good one Mark
Bad BruceBushboy
renewableMark Guru Joined: 09/12/2017 Location: AustraliaPosts: 1678
Posted: 08:29am 06 Oct 2018
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St Kilda is like kings cross Gary.Cheers Caveman Mark Off grid eastern Melb
Madness Guru Joined: 08/10/2011 Location: AustraliaPosts: 2498
Posted: 11:12am 07 Oct 2018
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Mark car blowers are standard equipment in Queensland, you Victorians think you have it all over us.There are only 10 types of people in the world: those who understand binary, and those who don't.
Boppa Guru Joined: 08/11/2016 Location: AustraliaPosts: 814
Posted: 11:15am 07 Oct 2018
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I have one question- wouldn't being a car blower be pretty dangerous?- after all exhaust pipes get pretty hot...
Madness Guru Joined: 08/10/2011 Location: AustraliaPosts: 2498
Posted: 11:49am 07 Oct 2018
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Have you heard of using protection?There are only 10 types of people in the world: those who understand binary, and those who don't.
renewableMark Guru Joined: 09/12/2017 Location: AustraliaPosts: 1678
Posted: 05:16am 08 Oct 2018
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Just can't help myself, lets see how long this one takes to build, last one was 8 months, reckon this will be done in 8 weeks or under. Challenge is on to see if it gets running by xmas, I'm 100% confident on that. Maybe the TAB should start taking bets on it?? Now I have a proper CRO and a bit of knowledge this should be a walk in the park compared to the first one.Cheers Caveman Mark Off grid eastern Melb
Madness Guru Joined: 08/10/2011 Location: AustraliaPosts: 2498
Posted: 05:18am 08 Oct 2018
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Sounds like those could be famous last words
With no interruptions a think a week would be doable, but not many of us have that much spare time.Edited by Madness 2018-10-09There are only 10 types of people in the world: those who understand binary, and those who don't.
renewableMark Guru Joined: 09/12/2017 Location: AustraliaPosts: 1678
Posted: 05:29am 08 Oct 2018
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Hah yeah add a 5 yo savage child and a wife and bloody try and get anything done..... good luck Cheers Caveman Mark Off grid eastern Melb
Notice. New forum software under development. It's going to miss a few functions and look a bit ugly for a while, but I'm working on it full time now as the old forum was too unstable. Couple days, all good. If you notice any issues, please contact me.
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