Im contacting Eaton now about that. It seems there are 2 versions, the R and T. T integrates a temperature sensor, it seems I purchased the R model, which also has these leads.
I tried to meter these connections but did not have any success in determining their exact purpose.
Yes. I was originally going to bolt the cap to the 3/4 plywood behind it vertically with the terminals mounted upwards but it seemed to be a hazard in case anything fell down to the cap terminals. Instead I decided this small shelf would be the best way of mounting.
I am very aware of the...
Got the capacitor installed. Was hesitant to charge it, finally settled on using a battery charger. Worked a treat and in 20 minutes the capacitor was charged and ready.
This is a new install. Still have some cleanup and finalization to do.
AC amp reading taken ahead of capacitor.
AC Amp...
Incredible MattFin. Might be going dump diving this summer I suppose. I have many large ballasts for outdoor lights here, I wonder if those cores would work. Theyre not the oil filled type so the transformer is easy to get at. Thank you for your thoughts on this.
So remove current from the graph? This graph is only showing battery data. This data is not for the output side, besides seeing the battery current drop as loads start.
The cap comes with a temperature sensor output, just unsure of the exact type. I will be connecting this sensor to my automation once I have that figured out.
My concern is the charge has nearly completed, but temperature has barely risen until my loads of opportunity ramp. The high load...
I appreciate someone with intimate knowledge of my system chiming in. Still wondering about battery heating associated with that high current I see. Since the capacitor will arrive shortly I will update my findings. If the capacitor reduces battery heating by a few degrees I will call it a win.
Thats interesting Vigo, do you mean you were shocked when touching both 48v battery leads, or just the metal battery cases?
The only reason I decided to look into this is my fluke meter has a magnet and it vibrates like mad when near the battery leads, when there is seemingly just a small DC...
That's one thing I should've mentioned. I've got a JLN fuse holder with parallel 4/0 crimped and terminated on both sides of the holder.
I can feel warmth near the crimped ends.
In any case I have no issue spending $1500 to help protect $35k of batteries. I need these to last many years to come and thats a small price to pay for their longevity.
I'd really like some more information on this topic to make a more informed decision. Unfortunately I've never seen this...
https://sparks.gogo.co.nz/capacitor-formulae.html
Went to:
I want to draw x amps for t seconds
Punched in:
270A
.0083sec (120hz)
54v
48v
According to that the capacitor size required is miniscule.
So if that 130 Farad bank means the batteries never see this ripple I will be happy and sleep a...
Yes this is measured on the battery leads.
As far as cycling, I'd prefer the capacitor takes this current as opposed to the batteries.
Capacitor 1 million cycles
Battery: 10000 cycles
Yes I agree, I've never seen this talked about. I did not plan for it in my initial installation.
I used...
Hi there. I'm looking at an eaton 130 farad capacitor, rated for 62V part no XLM-62R1137A-R. The heating doesn't appear to be much, the highest reported temperature I've seen from the BMS is 34C which I don't believe is terrible, but not ideal. My goal is to keep battery temperature below 30C...