EG4 6000xp PV startup voltage?

[D. Abineri]

The 6000xp manual shows a PV unit startup voltage of 100V and I am not sure what this means. I will have about 270v from my panels. Can I start the system with this voltage connected? What is the significance of the 100v? Is that the minimum that must be connected to the MPPT?

Thanks

 

[timselectric]

Is that the minimum that must be connected to the MPPT?

Yes

 

[DIYrich]

It is also the voltage that needs to be produced. Your 270v probably assumes all panels are being lit up. Early or late in the day, cloud cover, etc will drop production. If not 100v, then string is ignored.

 

[D. Abineri]

Yes

Thanks for this

 

[D. Abineri]

It is also the voltage that needs to be produced. Your 270v probably assumes all panels are being lit up. Early or late in the day, cloud cover, etc will drop production. If not 100v, then string is ignored.

Thanks, good to know this.

 

[Tripplett]

It needs a min of 100v, but I’d make sure your strings are 150v or even 200v+ for reasons @DIYrich mentioned.

 

[Detritalgeo]

Hmmm, this has me reconsidering the 6k Luxpower now...

I have a variant of the Voltronic 6548 with the 250VOC capability. I only really have room for 2 strings of 5 405W Longi Panels and they seem to sit at 90-ish volts until the full sun comes through.

This 100v limit makes me think the 6kxp will lose out on a few kWh that the Voltronic can make use of.... in less ideal conditions.

 

[ATX]

Hmmm, this has me reconsidering the 6k Luxpower now...

I have a variant of the Voltronic 6548 with the 250VOC capability. I only really have room for 2 strings of 5 405W Longi Panels and they seem to sit at 90-ish volts until the full sun comes through.

This 100v limit makes me think the 6kxp will lose out on a few kWh that the Voltronic can make use of.... in less ideal conditions.

Yes. I think next model will have lower lower end and higher higher end. Midnite AIO ranges for 70v-600. Tesla Powerwall 3 60-500v.

 

[Tripplett]

I have two strings of 4 545w panels and they are 49v panels. Right now it's early morning and it's raining. No solar coming in at all but they are reading 163v. So even in those conditions I generally will see at least 40v on these 49v panels.

 

[EG4_Jared]

The 6000xp manual shows a PV unit startup voltage of 100V and I am not sure what this means. I will have about 270v from my panels. Can I start the system with this voltage connected? What is the significance of the 100v? Is that the minimum that must be connected to the MPPT?

Thanks

The minimum to start the inverter with solar would be 100v. However, the inverter would not power loads until the usable 120v is reached. In some cases, I see that it has to be 121v.

 

[Detritalgeo]

Maybe I would have to run my 10 405W Longi's in a 10s configuration... would be about 400V 13A max... for one MPPT though.

Early morning would be ~180V and typical mid-day would be 360V where I am..

 

[Detritalgeo]

Maybe I would have to run my 10 405W Longi's in a 10s configuration... would be about 400V 13A max... for one MPPT though.

Early morning would be ~180V and typical mid-day would be 360V where I am..

Following up...

I left it with 2 5s strings and the SNA-6k is doing a much better job getting power out at low ambient light conditions than the Voltronic... no voltage concerns after all.

 

[gotbeans]

Hmmm, this has me reconsidering the 6k Luxpower now...

I have a variant of the Voltronic 6548 with the 250VOC capability. I only really have room for 2 strings of 5 405W Longi Panels and they seem to sit at 90-ish volts until the full sun comes through.

This 100v limit makes me think the 6kxp will lose out on a few kWh that the Voltronic can make use of.... in less ideal conditions.

What is their VOC? you can just run all 10 of those in 1 string instead of 2 strings

 

[Detritalgeo]

What is their VOC? you can just run all 10 of those in 1 string instead of 2 strings

They are close to 40VOC each. I can get away with making it a single 10s run but I had them as individual 5s runs to work with the 250VOC model of the Voltronic 6548. I did the swap the other evening and kept the configuration to make the swap easier. I may switch to 10s later when I have some time.

I was concerned the MPPT's would be dormant more than the Voltronic unit as typically the PV voltage was around 90 before good light conditions. The Lux SNA-6k surprised me. There is also no more pulsing LED's with the dimmer at 20-80%.. The voltronic was bad unless there was a 1+ kW load.

 

[Quattrohead]

The voltage will come up real quick at daylight, 200v is more than fine for a string.

 

[gotbeans]

They are close to 40VOC each. I can get away with making it a single 10s run but I had them as individual 5s runs to work with the 250VOC model of the Voltronic 6548. I did the swap the other evening and kept the configuration to make the swap easier. I may switch to 10s later when I have some time.

I was concerned the MPPT's would be dormant more than the Voltronic unit as typically the PV voltage was around 90 before good light conditions. The Lux SNA-6k surprised me. There is also no more pulsing LED's with the dimmer at 20-80%.. The voltronic was bad unless there was a 1+ kW load.

yea I understand your other inverter had lower voltage
I'm just saying if you string them out to take advantage of the 6000XP's higher voltage you can wake it up with 180volts when you currently only have 90volts. So I wouldn't "reconsider" like you said, because you can just change 1 wire in your array and it won't be an issue anymore.
With my string I get 200volts at night a lot, from full moons + city lights etc. Zero power, no watts etc but the voltage is there.

There are some LED lights with better capacitors that won't blink etc with worse inverters