themizz
tinkering
So what did those batteries cost landed in the US? And who is the manufacturer
These perhaps: https://www.alibaba.com/product-detail/Felicity-Brand-48V-300AH-home-use_1600076854773.htmlSo what did those batteries cost landed in the US? And who is the manufacturer
Each Battery is 277 KG each and the total of 1,939 KG and that's one hell of a freaking heavy. A dolly will not cut it, need a hand pallet truck to move it ?Shit… I have 31Kwh of batteries being delivered Monday and I thought that was a lot at 225Kg!
These perhaps: https://www.alibaba.com/product-detail/Felicity-Brand-48V-300AH-home-use_1600076854773.html
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no they are 225KG for all 3, I have 3 x 200ah server rack batteries. I think they might be around 80KG each.Each Battery is 277 KG each and the total of 1,939 KG and that's one hell of a freaking heavy. A dolly will not cut it, need a hand pallet truck to move it ?
I can't handle this crates, they are just to freaking heavy for me. I've to hire another moving company to move from the front of the house to the garage in the back and un-crate them.You've been a busy beaver this weekend. That's a lot of uncrating and moving around of those heavy beasts.
So, when your modifications are complete, would your passthrough then be 16K?Just a recap of the Growatt ATS 11400T-US Combo ATS (Auto Transfer Switch) / Split-phase Autotransformer rated at 11.4KW that I've purchased from Signature Solar for $498.00. I selected this unit over the $329.00 5KW unit due to the high 11.4K passthrough rating. However, the 11.4KW is less than the Deye 16K AC output. The extra for the Auto Transfer Switch functionality is not much of a use for my application as a Solar Generator to my current configuration of 2 units of Deye 8K operating in Parallel. The idea was to provide a Gas generator like Backup without the use of dirty, noisy and slow 1 mins Auto Transfer Switch. The 16K will be install with a Transformer Interlock kit at the entrance 200A main breaker fed by the Gird provider, with a large 107KW of LFP battery bank. If the current 51KW battery bank reach to 20% SOC shutdown, it will simply pull power from the 16K that is acting as a simulated Gird that is capable of providing 7 days of backup power.
Having tested the Growatt 11.4K and calculated how it implement the passthrough power, I decided to modify the unit to produce a much higher passthrough.
View attachment 128634
View attachment 128633
Here is a PIC of the internal of the unit when I first received it. The units implement the ATS with a pair of expensive ABB contactor (they are sold on FleaBay for more than a hundred bucks). Below are pics of the motification.
View attachment 128637
The Growatt implement a 3 pole 80A MCB for the Spilt-phase output for safety will shutdown the output if the are any overcurrent or overvoltage protection of the new Split-phase LOAD panel. This will eliminate the issues of energizing the 120V circuit when the Neutral is lost as was raised by Ian from Watt24; with the use of the SolarEdge Autotransformer.
View attachment 128638
The pair of ABB implement the Auto Transfer Switch from Grid failure to ESP (Critical Load) of the Hybrid Inverter. This is of no use for my application and is restrict the Single-phase 240V L1-L2 passthrough with a 63A limit.
View attachment 128639
The schematic of the Growatt with dual GRID and EPS input.
View attachment 128640
So, when your modifications are complete, would your passthrough then be 16K?
Sounds like you know what your doing, but you're going to have to provide a detailed step by step. I won't attempt this unless I know every single step. So far I just have a general idea of what you're doing.To accomplished the mod, the following parts are required, there is the link for the AC 120V/240V 80A 50HZ~60HZ MCB and 3 AWG stranded copper THHN rated wire
Caution, DO NOT INSTALL ANY DC rated MCB breaker, you're working with high current mod. Do not try if you're not familiar or comfortable with electrical system. I posted this modification to document the implementation for a off-grid Generator project.
I was thinking the same thing but, since I'm not sure and I don't want to look like an idiot. What I can gather from his explanation is that after his modification the 5kva transformer only acts as the Neutral point rather something that provides 1 or the other 120v leg. But again my understanding is probably rubbish. I hope he can clarify further.That transformer has a sticker right on the front that says it is rated for 5 kva. Also having the neutral leg going through a breaker is unnecessary and in fact adds an extra point of failure that could cause problems.
Are you sure this is not all going to end in tears?