busbarsWhat is the best, clean, efficient way to distribute 48V DC power to multiple MPP inverters? Starting off with a 6x EG4-LL in the rack & possible more expansion in the future, thanks for any feedback!
-Tony
Appreciate if you can, thanks!busbars
I can elaborate upon request.
Each battery has its own breaker.Appreciate if you can, thanks!
battery_subassembly {
pos {
|<->battery.1.pos
|<->battery.2.pos
|<->battery.3.pos
|<->battery.4.pos
|<->battery.5.pos
|<->battery.6.pos
|<->1A_fuse<->shunt.pos
|<->class_t_fuse<->inverter_subassembly.pos
}
neg {
|<->battery.1.neg
|<->battery.2.neg
|<->battery.3.neg
|<->battery.4.neg
|<->battery.5.neg
|<->battery.6.neg
|<->shunt<->inverter_subassembly.neg
}
}
inverter_subassembly {
pos {
|
|<->fuse<->mpp.1.pos
|<->fuse<->mpp.2.pos
|<->fuse<->mpp.3.pos
}
neg {
|
|<->mpp.1.neg
|<->mpp.2.neg
|<->mpp.3.neg
}
}
the EG4 rack with busbars included?What is the best, clean, efficient way to distribute 48V DC power to multiple MPP inverters? Starting off with a 6x EG4-LL in the rack & possible more expansion in the future, thanks for any feedback!
-Tony
That is not for paralleling, that is if you bought 1 battery and wanted to connect 2 units, the daisy-chaining of battery cables will create very uneven resistance@smoothJoey yes plan is to have all of the inverters to batteries.
@SignatureSolarUS Yes, I ordered the EG4 rack at Signature Solar. Not sure if it's necessary to use the busbars with these new EG4-LL units as they can be paralleled right on the unit itself
Depending on the current requirements of the all in one units you may want to do 1 to 1 connections.@smoothJoey yes plan is to have all of the inverters to batteries.
I purchased 6x units & the rackThat is not for paralleling, that is if you bought 1 battery and wanted to connect 2 units, the daisy-chaining of battery cables will create very uneven resistance
then you should be good. there are 4 free terminals on top, use them with your MPP inverters if you can.I purchased 6x units & the rack
Signed up for these units, https://watts247.com/product/lvx604...t-the-2k-range-add-yourself-to-the-watchlist/Depending on the current requirements of the all in one units you may want to do 1 to 1 connections.
Then parallel the units only in the ac domain.
6000 ac watts / .85 conversion factor / 48 volts low cutoff = 147.058823529 service ampsSigned up for these units, https://watts247.com/product/lvx604...t-the-2k-range-add-yourself-to-the-watchlist/
You mean as a busbar?Any thoughts on using Square D QO load centers for battery banks & All-in-1 inverters on breakers?
It's a bit alien, I'm just starting out. Appreciate your attention to details!Did you understand my math earlier in the thread?
How many MPP units shall we plan for to future proof?It's a bit alien, I'm just starting out. Appreciate your attention to details!
My plan is to start out with 6x EG4-LL in the rack with 2x MPP LVX6048WP & expand to more in the future.
Good to know! Max parallel out at 6. Open to add more 6x rack units down the roadHow many MPP units shall we plan for to future proof?
6x of those batteries could service up to 4x of the MPP units.
Please clarify your answer, I'm not sure what you are driving at.Good to know! Max parallel out at 6. Open to add more 6x rack units down the road