Home
JAQForum Ver 24.01
Log In or Join  
Active Topics
Local Time 23:37 28 Nov 2024 Privacy Policy
Jump to

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.

Forum Index : Electronics : Victron 24/3000/70 charger/inverter

Author Message
domwild
Guru

Joined: 16/12/2005
Location: Australia
Posts: 873
Posted: 10:00pm 09 Oct 2015
Copy link to clipboard 
Print this post

Hi,

When I found this heavy monster of a 24VDC charger/inverter at my favourite scrap yard and was given it for free I thought all my Christmasses had come at once. The manual I downloaded talks of needing 200-700 Ah batteries. It has two large toroids, banks of caps and an enormous heat sink carrying four or six banks of MOSFETS and a PCB board. Can pass 16A at 240VAC and the 3000 is the VA rating and it looks like a 70A charger.

The heavy alu chassis had been dented and I found lots of problems with it and have questions:

1. It seems to charge the batteries at 28.8V and the absorption LED (below the Bulk LED) is on, but when I switch off the AC 240V input, the lamp connected to the output does not come on; is a charger/inverter supposed to work like a UPS? The "Inverter ON" LED does not come on when I cut supply nor are any of the alarm LEDs, e.g., Low Batt lit up.

2. Lucky I did not get electrocuted as the chassis carries 125VAC to ground. There is no cure for stupidity! Any suspicion why that could be? Am I wasting my time trying to fix it? I also found I cannot alter any settings via dip switches and push buttons as per the manual. Someone had already fiddled with the dip switches and set two of them to "ON", which the manual tells me they are supposed to be "OFF".

The manual also talks of "shore power" and the unit is built in Holland.

Thanks.

Taxation as a means of achieving prosperity is like a man standing inside a bucket trying to lift himself up.

Winston Churchill
 
yahoo2

Guru

Joined: 05/04/2011
Location: Australia
Posts: 1166
Posted: 12:04am 14 Oct 2015
Copy link to clipboard 
Print this post

victron built their business out of power for boats so most of their gear still has that heritage or functional bias built into it.

there is a possibility that the bent chassis and the 125v ac to ground are related, perhaps something that is meant to be isolated is not anymore???

unfortunately stuff gets damaged then plugged in and damaged further and I couldn't work that out without looking at it myself. it is just a guessing game with the info you have supplied. sorry
I'm confused, no wait... maybe I'm not...
 
domwild
Guru

Joined: 16/12/2005
Location: Australia
Posts: 873
Posted: 12:18pm 14 Oct 2015
Copy link to clipboard 
Print this post

Thanks yahoo2 for mail. Yes, this was a stab into the dark. Once I pull it apart I can just look for the obvious. Do you know if a charger/inverter like that should behave like a UPS and switch to battery once the supply fails?

Showing my ignorance here even with the names.
Taxation as a means of achieving prosperity is like a man standing inside a bucket trying to lift himself up.

Winston Churchill
 
yahoo2

Guru

Joined: 05/04/2011
Location: Australia
Posts: 1166
Posted: 01:02pm 14 Oct 2015
Copy link to clipboard 
Print this post

I am pretty sure that all the inverter/chargers in victron's range have internal transfer switches. So yes, with the dip switches set correctly it should respond to mains power.
the newer ones also have a power assist function where they can sync with a generator or the mains and use two power sources at once.
I'm confused, no wait... maybe I'm not...
 
Print this page


To reply to this topic, you need to log in.

© JAQ Software 2024