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diy solar

New Lux Power LXP-LB-US 12k / GSL-H-12KLV-US with 200A AC Passthrough Current (US Market)

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thanks, yeah I saw it as well, do you have any experience with this and whether its better then using what luxpower dongle/adapter provides?
I am not using SA (yet) so can not comment on the differences.
Since they are both using the same information from the inverter API interface, there shouldn't be much of a difference.
The layout & what is presented on the screen could be different.
Certain single board computers with SA could have a monitor detached and would make it a solution where you both can view the data locally & remotely (on the same LAN) with a browser.
Some people are using an inverter for off-grid and don't have access to internet (no cable/dsl or even cell tower reception available).
In those cases SA sounds like a great opportunity to harvest data.
 
You need to connect the Wi-Fi dongle to your local network unless you want to monitor purely on the phone app because that can connect directly to the dongle.
The official monitoring you will only see data every 5 minutes whereas with solar assistant you will get it every 10 seconds, major difference. The connection to the inverter with solar assistant is so easy to set up, literally automatic.
 
how would you do that with phone? bluetooth?
The WiFi dongle plugged into the inverter. You don’t have to hook it up to wifi. But you can connect to the WiFi dongle with your phone and update it that way. All you have to do is find the WiFi signal the dongle generates. The password is on the side of the dongle.
 
The WiFi dongle plugged into the inverter. You don’t have to hook it up to wifi. But you can connect to the WiFi dongle with your phone and update it that way. All you have to do is find the WiFi signal the dongle generates. The password is on the side of the dongle.
ok also do you happen to know does the generator input connect to gen terminals or grid terminals on inverter? cc: @Eddie_LuxPowerTek
 
Eddie_LuxPowerTek said:
Great news to share here about Tigo RSD. Luxpower inverters have just successfully connected to the Tigo Smart RSD monitoring platform! This means that if users connect LXP series (Incl. EG4 18kPv) inverters with Tigo RSD and use Tigo EI services, Luxpower's monitoring system can monitor the power output of each individual PV module.View attachment 163944


You may buy Tigo optimizers from whoever is selling them. And pay Tigo EI premium service for 20$ per year. Then configure the Tigo EI's account to your LXP monitoring account.
For example, Ss is selling this too: 44$/pc.
So basically this is to maximize each PV's output. It's worth I think.
Thx
This is good news since I am just bout ready to turn on the 12k with 30 tigo’s
 
This is good news since I am just bout ready to turn on the 12k with 30 tigo’s
Also a while ago I questioned the voltage/ current input ratings for the pv’s. I am back tracking to make sure the fuses are correct
Currently I have breakers 500vdc 16amps. Am I ok?
 
Also a while ago I questioned the voltage/ current input ratings for the pv’s. I am back tracking to make sure the fuses are correct
Currently I have breakers 500vdc 16amps. Am I ok?

Breakers or fuses per string should be at least 1.56x Isc of panels. I think if magnetic-hydraulic breakers then 1.25x would be sufficient because those don't require derating. Although NEC doesn't seem to acknowledge that by offering relief.

500V is OK if Voc is no higher.

But are the breakers polarized? If 3 or more strings connected in parallel, the protection against backfeed is required and polarized breakers aren't suitable. If you have 3 strings into 3 separate MPPT, not problem. If 3 string connections for one MPPT (strings are paralleled), then the backfeed protection is needed.

Do your breakers open both PV+ and PV-, or just one? I like to be able to isolate both poles from the inverter/charge controller.
 
I will have three strings of 10 - 400 watt panels all in series
 

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I see three 2-pole 500VDC polarized breakers and three surge arrestors.
The three surge arrestors suggests there are three inverter MPPT inputs to be protected.

Does inverter have three separate MPPT inputs? Or just 3 strings inputs for a single MPPT, (in which case polarized breaker not suitable)?

Two of the breakers are 16A, one is 25A.
PV label says 13.86 Isc

For household AC circuits, breakers should be sized 25% above continuous current to avoid nuisance trips (in particular because thermal breakers are affected by ambient temperature in their enclosure, and wire connections contribute to heating along with the resistance element inside them.) This means a 25A breaker would be good for 20A continuous, and 16A breaker good for 13A continuous.

For PV circuits, there is the possibility of cloud edge effects, where panel gets full direct sun plus additional sunlight reflected off and diffused through clouds. For this reason, and additional 25% margin is recommended and called for in NEC. 1.25 x 1.25 = 1.56

13.86 x 1.56 = 21.66A minimum breaker size.
The label on PV panel says 25A maximum fuse.

You should use a 25A breaker for each string. It is possible the 16A breakers will nuisance trip.

36.8 Voc x 10 panels in series = 368Voc at 25 degrees C. Depending on data sheet specs and cold temperature, that could increase 16% to 427V.
What is inverter's max PV input voltage?
 
I see three 2-pole 500VDC polarized breakers and three surge arrestors.
The three surge arrestors suggests there are three inverter MPPT inputs to be protected.

Does inverter have three separate MPPT inputs? Or just 3 strings inputs for a single MPPT, (in which case polarized breaker not suitable)?

Two of the breakers are 16A, one is 25A.
PV label says 13.86 Isc

For household AC circuits, breakers should be sized 25% above continuous current to avoid nuisance trips (in particular because thermal breakers are affected by ambient temperature in their enclosure, and wire connections contribute to heating along with the resistance element inside them.) This means a 25A breaker would be good for 20A continuous, and 16A breaker good for 13A continuous.

For PV circuits, there is the possibility of cloud edge effects, where panel gets full direct sun plus additional sunlight reflected off and diffused through clouds. For this reason, and additional 25% margin is recommended and called for in NEC. 1.25 x 1.25 = 1.56

13.86 x 1.56 = 21.66A minimum breaker size.
The label on PV panel says 25A maximum fuse.

You should use a 25A breaker for each string. It is possible the 16A breakers will nuisance trip.

36.8 Voc x 10 panels in series = 368Voc at 25 degrees C. Depending on data sheet specs and cold temperature, that could increase 16% to 427V.
What is inverter's max PV input voltage?
Same 12k we have been talking about in this thread….
Fired up one string today. 378vdc OC … nice
 
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