HeavenlyBang:


When you factor in shipping, Fouani will always be cheaper.

Gennex quoted me 75k for shipping of Jinko panels, I bought same panels from Fouani with free shipping.

Same here, bought jinko panels from Foauni and had it delivered at my address free of charge. Oftentimes their jinko prices are even cheaper than other suppliers and yet they are still able to ship free of charge. Can't find a better bargain than that

Na why them say you dey respond like AI be this 😂

jonescosmos:
I have never had this kind of issues bro.
Please note that the MPPTs are not connected in series, rather they are connected in parallel with some internal diodes that prevents each string from back feeding to the other.

I have 4 Strings so far are as follows:

LATEST DEYE 8KW + 8KW:
INVERTER 1 MPPT 1:
STRING 1: 8X600W CANADIAN SOLAR PANELS (STC 41.3 V x 8 = 330.4V)(NOTC 34.9 V x8 = 279.2V)
STRING 2: 8X600W CANADIAN SOLAR PANELS (STC 41.3 V x 8 = 330.4V)(NOTC 34.9 V x8 = 279.2V)
INVERTER 2 MPPT 2:
STRING 1: 8X625W JINKO SOLAR PANELS (STC 55.70V V x 8 = 445.6V)(NOTC 42.61V V x8 = 340.88V)
STRING 2: 10X540W FELICITY SOLAR PANELS (STC 49.55 V x 10 = 495.5V)(NOTC 42.24 V x10 = 422.4V)

PREVIOUS DEYE 8KW:
MPPT 1:
STRING 1: 8X600W CANADIAN SOLAR PANELS (STC 41.3 V x 8 = 330.4V)(NOTC 34.9 V x8 = 279.2V)
STRING 2: 8X600W CANADIAN SOLAR PANELS (STC 41.3 V x 8 = 330.4V)(NOTC 34.9 V x8 = 279.2V)
MPPT 2:
STRING 1: 8X625W JINKO SOLAR PANELS (STC 55.70V V x 8 = 445.6V)(NOTC 42.61V V x8 = 340.88V)
STRING 2: 10X540W FELICITY SOLAR PANELS (STC 49.55 V x 10 = 495.5V)(NOTC 42.24 V x10 = 422.4V)

PREVIOUS DEYE 16kw:
MPPT 1:
STRING 1: 8X600W CANADIAN SOLAR PANELS (STC 41.3 V x 8 = 330.4V)(NOTC 34.9 V x8 = 279.2V)
STRING 2: 8X600W CANADIAN SOLAR PANELS (STC 41.3 V x 8 = 330.4V)(NOTC 34.9 V x8 = 279.2V)
MPPT 2:
STRING 1: 8X625W JINKO SOLAR PANELS (STC 55.70V V x 8 = 445.6V)(NOTC 42.61V V x8 = 340.88V)
MPPT 3:
STRING 2: 10X540W FELICITY SOLAR PANELS (STC 49.55 V x 10 = 495.5V)(NOTC 42.24 V x10 = 422.4V)

My systems worked flawlessly on Deye 16KW, Deye 8KW, and Parallel Deye 8KW + 8KW as well as every other installations I have done, even non Deye Inverters.
I will post you a picture of my Voltages tomorrow afternoon.

I still believe you should investigate further as there might be a problem with your Panel Strings or your connection on the terminals inside the Inverter. I have seen cases were people misinterpreted the terminals. Please take a good look at the attached pictures.
Note that Positive from String 1 and Positive from String 2 are next to each other (Parallel) and Negative From String 1 and Negative from String 2 are next to each other likewise (parallel).
The issue you experienced is only possible when you connect Positive and Negative of same string next to each other.


EACH MPPT AND STRING HAS IT'S OWN VOC, WHICH IS 500V
SO YOU HAVE:
16KW
MPPT1 STRING 1 VOC=500V
MPPT1 STRING 2 VOC=500V
MPPT2 STRING 1 VOC=500V
MPPT2 STRING 2 VOC=500V
MPPT3 STRING 1 VOC=500V
MPPT3 STRING 2 VOC=500V

8KW / 5KW
MPPT1 STRING 1 VOC=500V
MPPT1 STRING 2 VOC=500V
MPPT2 STRING 1 VOC=500V
MPPT2 STRING 2 VOC=500V

My Most recent project:
50KW
MPPT1 STRING 1 VOC=1000V
MPPT1 STRING 2 VOC=1000V
MPPT2 STRING 1 VOC=1000V
MPPT2 STRING 2 VOC=1000V
MPPT3 STRING 1 VOC=1000V
MPPT3 STRING 2 VOC=1000V
MPPT4 STRING 1 VOC=1000V
MPPT4 STRING 2 VOC=1000V

tivta:
How come no one is talking about bluetti?

BLUETTI AC200MAX
Size: 2.048kwh expandable to 8,192Wh
Price : $1,199.00 or ₦1,798, 500 cost price without shipping fees included

BLUETTI AC180
Size: 1.152kwh
Price: Starting from $899.00 or ₦1,348,500 price without shipping cost included



BLUETTI AC60
Size: 403Wh
Price: Starting from $599.00 or ₦898,500 cost price without shipping cost included

AC200MAX+B300 | 2,200W 5.120kWh
US$3,198.00 or ₦4,797,000 cost price without shipping fees included.


By now you must've seen why it's not so hot here. The cost and the size (kWh) is an issue.

You can get a better deal DIYing the thing than attempting to buy a Bluetti.

diabeticdeals:
Na why them say you dey respond like AI be this 😂

I like his replies, I like detailed replies. Leaves no room for doubts.

mctfopt:


BLUETTI AC200MAX
Size: 2.048kwh expandable to 8,192Wh
Price : $1,199.00 or ₦1,798, 500 cost price without shipping fees included

BLUETTI AC180
Size: 1.152kwh
Price: Starting from $899.00 or ₦1,348,500 price without shipping cost included



BLUETTI AC60
Size: 403Wh
Price: Starting from $599.00 or ₦898,500 cost price without shipping cost included

AC200MAX+B300 | 2,200W 5.120kWh
US$3,198.00 or ₦4,797,000 cost price without shipping fees included.


By now you must've seen why it's not so hot here. The cost and the size (kWh) is an issue.

You can get a better deal DIYing the thing than attempting to buy a Bluetti.

Yea expensive but undoubtedly very superior quality and great after sales service plus Long term warranty and easy setup.

It's who he is. He loves everything detailed even down to when there is an issue and you need he's assistance, you must provide good details for him to be able to render assistance and he's been very helpful.

mctfopt:


I like his replies, I like detailed replies. Leaves no room for doubts.

I actually do too. Just wanted to rile him up a little bit 🤭

mctfopt:


I like his replies, I like detailed replies. Leaves no room for doubts.

Kudos to him all day, everyday.

Hybrid600:

It's who he is. He loves everything detailed even down to when there is an issue and you need he's assistance, you must provide good details for him to be able to render assistance and he's been very helpful.

RickyM:
After contacting Techland, I realized it would be better I go with FOUANI anyway.
160-220k for waybill and 4480 per 2 panels for packaging is no joke lol 😂

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GROWATTS INVERTERS
SPF 3000TL HVM 48
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PYLONTECH LITHIUM ION BATTERIES

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US3000C 3.5KWH
UP5000 4.8KWH
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HORIZONTAL AND VERTICAL BRACKET FOR ALL MODELS OF BATTERIES
EXTERNAL CABLE KIT FOR USC(CONNECT BATTERY TO INVERTER ALSO AVAILABLE)

ALL ITEMS ARE VERY MUCH AVAILABLE AND WILL BE DELIVERED WITH EASE..

NO NEED TO RUN TO ARENA OR ALABA ANYMORE...
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WE ARE VERY ACTIVE.... TO ALL THE SOLAR ENGINEERS,KINDLY BRING DEALS AND A WARMFUL DISCOUNT AWAITS YOU.

tivta:


Yea expensive but undoubtedly very superior quality and great after sales service plus Long term warranty and easy setup.

I'll rather buy grade A cells and do my setup. No way I'm buying Bluetti at that their price.

diabeticdeals:
I actually do too. Just wanted to rile him up a little bit 🤭

Lol. Thought as much.

i have never successfully used it to control dstv decoders fully...have you tried?

Xanderone:


Actually I just thought about something now as you mentioned this. One of my tuya devices is a remote control that I use to operate the TV, sound system and decoder from the phone. You can programme almost any remote, and I mean almost any remote, to it and control it on your phone from anywhere in the world. It's just that it doesn't have facility for timer.

Xanderone:


Bare negative cable that was cellotaped?

Just a question. Did you cut off the MC4 plugs on your solar panel?

The negative cable attached to last panel had a wound originally which I had tape before using for the installation got weak due to weather, rain water got into it and unfortunately touching the panel frame.

Greetings House, please is it safe to series 9units of 445W Half Cut Longi Solar with VOC of 49.4, Vmp of 41.2V and 144cells on an High Voltage Felicity IVEM 5KVA Inverter that has maximum Solar Voltage as 500V

jrupa:
Greetings House, please is it safe to series 9units of 445W Half Cut Longi Solar with VOC of 49.4, Vmp of 41.2V and 144cells on an High Voltage Felicity IVEM 5KVA Inverter that has maximum Solar Voltage as 500V

I believe it should be safe

moneyest:


Techland's canadian 665 watts = 182875 a piece

27 pieces = 182875 x 27 = #4,937,625

Let's assume way billing is #200,000

Crating is #4,480 per 2 panels so for 27 panels there are approximately 14 pairs

4,480 x 14 = #62,720

Total cost for the 27 Canadian panels from Techland = #4,937,625 + #200,000 + #62,720 = #5,200,345

625w Jinko panel from fouani is #184,800

This means I'm buying 1 Jinko watt at 184800/625 = #295.68kobo

But for the Canadian panels the total watts I got is 665w x 27pieces = 17955 watts and you recall I spent #5,200,345 total to get them

This means I'm getting 1 Canadian watt at
5200345/17955 = #289.63kobo

Canadian panels is saving me #295.68 - #289.63 = #6.05 per watt

If I must get the exact same wattage from fouani's Jinko I'll be spending #295.68 per watt x 17955watts = #5,308,934.40

But I got same watts at Canadian for #5,200,345 which means Canada saved me #5,308,934.40 - #5,200,345 = #108,589.40 despite the additional crating and shipping fees.

So you see... Even with fouani's free shipping, Canada still stands tall

Nothing is actually free even in Freetown

Nice expose!

Juror:

I believe it should be safe

Thanks for your response.

I'm actually thinking same too but I have never tried it on Felicity Inverters before so I was a bit unsure and I needed some assurance to go ahead.

Ferdiwar:
Update on my setup.

Sometime last month I connected all my AC to the smart load of my inverter, and noticed that the inverter was going off and on repeatedly for like 5x before stabilizing back on. This would happen severely in a day before the sun goes down as I discovered it only happens during the day.

As a result I reverted back to the previous connection and disabled the smart load thinking that was my issue, but it still persisted, so I did some reading online and concluded it might be a software bug.

I emailed Deye and requested for diagnosis and update which they did by pushing a remote firmware update to the inverter, yet the issue continued (in my mind I was like I spent huge money to buy a faulty batch of an expensive inverter). I sent an update email yesterday to Deye explaining that the issue is not yet resolved (yet to get an update though) after it happened for the 2nd time in the morning (around 11am). At this point I thought it wise to calm down and observe the inverter when next it happens rather than be angry, so I stayed put in front of the inverter and watched it.

Few minutes later it happened again this time around I was watching the screen and boom I caught it in the act and it happens to be that the voltages of 2 strings of panels attached to the 2 MPPTs of the inverter exceeded the max 500v of the inverter (string 1 5x Longi 570w panels was pumping 240v+ as at that time while string 2 5x Jinko 625w panels were pushing over 265v both exceeding the 500v max voltage).

As I saw that I quickly switched off string 1 breaker and the inverter stabilized instantly which suggests that the input of the 2 MPPTs are somehow connected in series or something like that as one of the MPPTs can take 500v alone but the 2 MPPTs combined together is still 500v.

No matter what you do, do not exceed the max voltage of your inverter and take not of the tolerance of the VOC of your panels when connecting your panels to your CC or inverter to avoid stories just in case your inverter or CC is not equipped to handle any form voltage spike above the rated max voltage of the inverter or CC.


@Jonescosmos the 500v is for the 2 MPPTs after all

y all this big brands nor de give deep info on this 2 mppt stuff. Me i was tinking each mppt is 500v max but u cañ share d toral pv wattage amongst both

Juror:

Nice expose!

wisdom. U sure say u nor b d techland guy.. cos this is how he analyses dollar per watt oo..

jrupa:
Greetings House, please is it safe to series 9units of 445W Half Cut Longi Solar with VOC of 49.4, Vmp of 41.2V and 144cells on an High Voltage Felicity IVEM 5KVA Inverter that has maximum Solar Voltage as 500V

u re safe.. i just factored in cold days into ur calc.. we nor de abroad even if i put 1.1 temp coefficient u are still safe

brightk:
u re safe.. i just factored in cold days into ur calc.. we nor de abroad even if i put 1.1 temp coefficient u are still safe

Thanks so much for your feedback. I'm grateful. Although someone was saying it would be too much for the inbuilt Charge Controller.

Take a look at my Voltages on both Inverters this morning as promised.
2x 8KW According to the MPPTs and their Strings as I outlined earlier.

Ferdiwar:
Update on my setup.

Sometime last month I connected all my AC to the smart load of my inverter, and noticed that the inverter was going off and on repeatedly for like 5x before stabilizing back on. This would happen severely in a day before the sun goes down as I discovered it only happens during the day.

As a result I reverted back to the previous connection and disabled the smart load thinking that was my issue, but it still persisted, so I did some reading online and concluded it might be a software bug.

I emailed Deye and requested for diagnosis and update which they did by pushing a remote firmware update to the inverter, yet the issue continued (in my mind I was like I spent huge money to buy a faulty batch of an expensive inverter). I sent an update email yesterday to Deye explaining that the issue is not yet resolved (yet to get an update though) after it happened for the 2nd time in the morning (around 11am). At this point I thought it wise to calm down and observe the inverter when next it happens rather than be angry, so I stayed put in front of the inverter and watched it.

Few minutes later it happened again this time around I was watching the screen and boom I caught it in the act and it happens to be that the voltages of 2 strings of panels attached to the 2 MPPTs of the inverter exceeded the max 500v of the inverter (string 1 5x Longi 570w panels was pumping 240v+ as at that time while string 2 5x Jinko 625w panels were pushing over 265v both exceeding the 500v max voltage).

As I saw that I quickly switched off string 1 breaker and the inverter stabilized instantly which suggests that the input of the 2 MPPTs are somehow connected in series or something like that as one of the MPPTs can take 500v alone but the 2 MPPTs combined together is still 500v.

No matter what you do, do not exceed the max voltage of your inverter and take not of the tolerance of the VOC of your panels when connecting your panels to your CC or inverter to avoid stories just in case your inverter or CC is not equipped to handle any form voltage spike above the rated max voltage of the inverter or CC.


@Jonescosmos the 500v is for the 2 MPPTs after all

moneyest:


Techland's canadian 665 watts = 182875 a piece

27 pieces = 182875 x 27 = #4,937,625

Let's assume way billing is #200,000

Crating is #4,480 per 2 panels so for 27 panels there are approximately 14 pairs

4,480 x 14 = #62,720

Total cost for the 27 Canadian panels from Techland = #4,937,625 + #200,000 + #62,720 = #5,200,345

625w Jinko panel from fouani is #184,800

This means I'm buying 1 Jinko watt at 184800/625 = #295.68kobo

But for the Canadian panels the total watts I got is 665w x 27pieces = 17955 watts and you recall I spent #5,200,345 total to get them

This means I'm getting 1 Canadian watt at
5200345/17955 = #289.63kobo

Canadian panels is saving me #295.68 - #289.63 = #6.05 per watt

If I must get the exact same wattage from fouani's Jinko I'll be spending #295.68 per watt x 17955watts = #5,308,934.40

But I got same watts at Canadian for #5,200,345 which means Canada saved me #5,308,934.40 - #5,200,345 = #108,589.40 despite the additional crating and shipping fees.

So you see... Even with fouani's free shipping, Canada still stands tall

Nothing is actually free even in Freetown

My brother in watts/calculations, I had to do a similar calcution before deciding to buy panels from one vendor instead of the other.

Nice to see you also crunch the numbers instead of relying on mere guts or whims and caprices.

Nice thread

moneyest:


Techland's canadian 665 watts = 182875 a piece

27 pieces = 182875 x 27 = #4,937,625

Let's assume way billing is #200,000

Crating is #4,480 per 2 panels so for 27 panels there are approximately 14 pairs

4,480 x 14 = #62,720

Total cost for the 27 Canadian panels from Techland = #4,937,625 + #200,000 + #62,720 = #5,200,345

625w Jinko panel from fouani is #184,800

This means I'm buying 1 Jinko watt at 184800/625 = #295.68kobo

But for the Canadian panels the total watts I got is 665w x 27pieces = 17955 watts and you recall I spent #5,200,345 total to get them

This means I'm getting 1 Canadian watt at
5200345/17955 = #289.63kobo

Canadian panels is saving me #295.68 - #289.63 = #6.05 per watt

If I must get the exact same wattage from fouani's Jinko I'll be spending #295.68 per watt x 17955watts = #5,308,934.40

But I got same watts at Canadian for #5,200,345 which means Canada saved me #5,308,934.40 - #5,200,345 = #108,589.40 despite the additional crating and shipping fees.

So you see... Even with fouani's free shipping, Canada still stands tall

Nothing is actually free even in Freetown

Well, well, well. The maths doesn't lie.

If you can control the remote itself with HA or Node Red, then it does not need to have a timer na. You can do the timing control from those apps and then use the time to trigger whatever you want it to do.

Xanderone:


Actually I just thought about something now as you mentioned this. One of my tuya devices is a remote control that I use to operate the TV, sound system and decoder from the phone. You can programme almost any remote, and I mean almost any remote, to it and control it on your phone from anywhere in the world. It's just that it doesn't have facility for timer.

Since I installed both panels the inverter have never pulled more than 12A from the panels. The highest I've seen from the CC (MPPT 2) with the Jinkos is 12.5A and about 10A+ from MPPT 2 with the Longi panels, so it's not the current but voltage.

I'll open the inverter and check the connection inside.

mank1234:


This is invalid diagnosis.

All 5kw upwards have at least 2 independent trackers.

Both mppt are independent of each other. Check your error log. My suspicion is;
One of your string especially, the 625w may be exceeding 17A Isc during tracking. Very likely when sun comes up after cloud on a rainy day. I use same panel but luckily for me my roof is steep. My inverter clips the input current to 13A Imp. If it wasn't steep I'm sure I would be running into same issues.


The model you have has 13A as Mac input with caveat not to exceed 17A Isc. Your panel is exceeding that limit that's why it happens. I'll suggest you change panel to panels with lesser Isc else the inverter would spoil in the long run. Ideal for that model is Longi 450W with Isc less than 14A

Thank you Boss for this detailed explanation, I'll open the connection panel and check the connections inside as my came with the MC4 connectors, so I'll confirm how the MC4s are connected inside.

Will update you with my findings.

jonescosmos:
I have never had this kind of issues bro.
Please note that the MPPTs are not connected in series, rather they are connected in parallel with some internal diodes that prevents each string from back feeding to the other.

I have 4 Strings so far are as follows:

LATEST DEYE 8KW + 8KW:
INVERTER 1 MPPT 1:
STRING 1: 8X600W CANADIAN SOLAR PANELS (STC 41.3 V x 8 = 330.4V)(NOTC 34.9 V x8 = 279.2V)
STRING 2: 8X600W CANADIAN SOLAR PANELS (STC 41.3 V x 8 = 330.4V)(NOTC 34.9 V x8 = 279.2V)
INVERTER 2 MPPT 2:
STRING 1: 8X625W JINKO SOLAR PANELS (STC 55.70V V x 8 = 445.6V)(NOTC 42.61V V x8 = 340.88V)
STRING 2: 10X540W FELICITY SOLAR PANELS (STC 49.55 V x 10 = 495.5V)(NOTC 42.24 V x10 = 422.4V)

PREVIOUS DEYE 8KW:
MPPT 1:
STRING 1: 8X600W CANADIAN SOLAR PANELS (STC 41.3 V x 8 = 330.4V)(NOTC 34.9 V x8 = 279.2V)
STRING 2: 8X600W CANADIAN SOLAR PANELS (STC 41.3 V x 8 = 330.4V)(NOTC 34.9 V x8 = 279.2V)
MPPT 2:
STRING 1: 8X625W JINKO SOLAR PANELS (STC 55.70V V x 8 = 445.6V)(NOTC 42.61V V x8 = 340.88V)
STRING 2: 10X540W FELICITY SOLAR PANELS (STC 49.55 V x 10 = 495.5V)(NOTC 42.24 V x10 = 422.4V)

PREVIOUS DEYE 16kw:
MPPT 1:
STRING 1: 8X600W CANADIAN SOLAR PANELS (STC 41.3 V x 8 = 330.4V)(NOTC 34.9 V x8 = 279.2V)
STRING 2: 8X600W CANADIAN SOLAR PANELS (STC 41.3 V x 8 = 330.4V)(NOTC 34.9 V x8 = 279.2V)
MPPT 2:
STRING 1: 8X625W JINKO SOLAR PANELS (STC 55.70V V x 8 = 445.6V)(NOTC 42.61V V x8 = 340.88V)
MPPT 3:
STRING 2: 10X540W FELICITY SOLAR PANELS (STC 49.55 V x 10 = 495.5V)(NOTC 42.24 V x10 = 422.4V)

My systems worked flawlessly on Deye 16KW, Deye 8KW, and Parallel Deye 8KW + 8KW as well as every other installations I have done, even non Deye Inverters.
I will post you a picture of my Voltages tomorrow afternoon.

I still believe you should investigate further as there might be a problem with your Panel Strings or your connection on the terminals inside the Inverter. I have seen cases were people misinterpreted the terminals. Please take a good look at the attached pictures.
Note that Positive from String 1 and Positive from String 2 are next to each other (Parallel) and Negative From String 1 and Negative from String 2 are next to each other likewise (parallel).
The issue you experienced is only possible when you connect Positive and Negative of same string next to each other.


EACH MPPT AND STRING HAS IT'S OWN VOC, WHICH IS 500V
SO YOU HAVE:
16KW
MPPT1 STRING 1 VOC=500V
MPPT1 STRING 2 VOC=500V
MPPT2 STRING 1 VOC=500V
MPPT2 STRING 2 VOC=500V
MPPT3 STRING 1 VOC=500V
MPPT3 STRING 2 VOC=500V

8KW / 5KW
MPPT1 STRING 1 VOC=500V
MPPT1 STRING 2 VOC=500V
MPPT2 STRING 1 VOC=500V
MPPT2 STRING 2 VOC=500V

My Most recent project:
50KW
MPPT1 STRING 1 VOC=1000V
MPPT1 STRING 2 VOC=1000V
MPPT2 STRING 1 VOC=1000V
MPPT2 STRING 2 VOC=1000V
MPPT3 STRING 1 VOC=1000V
MPPT3 STRING 2 VOC=1000V
MPPT4 STRING 1 VOC=1000V
MPPT4 STRING 2 VOC=1000V

Exactly.

@Jonescosmos please keep the detailed explanations coming.

mctfopt:


I like his replies, I like detailed replies. Leaves no room for doubts.

I believe something is wrong then.

I'll do an indepth diagnostic on Wednesday and update you on my findings.

Thank you so much for all the responses so far.

jonescosmos:
Take a look at my Voltages on both Inverters this morning as promised.
2x 8KW According to the MPPTs and their Strings as I outlined earlier.

Ferdiwar:
Update on my setup.

Sometime last month I connected all my AC to the smart load of my inverter, and noticed that the inverter was going off and on repeatedly for like 5x before stabilizing back on. This would happen severely in a day before the sun goes down as I discovered it only happens during the day.

As a result I reverted back to the previous connection and disabled the smart load thinking that was my issue, but it still persisted, so I did some reading online and concluded it might be a software bug.

I emailed Deye and requested for diagnosis and update which they did by pushing a remote firmware update to the inverter, yet the issue continued (in my mind I was like I spent huge money to buy a faulty batch of an expensive inverter). I sent an update email yesterday to Deye explaining that the issue is not yet resolved (yet to get an update though) after it happened for the 2nd time in the morning (around 11am). At this point I thought it wise to calm down and observe the inverter when next it happens rather than be angry, so I stayed put in front of the inverter and watched it.

Few minutes later it happened again this time around I was watching the screen and boom I caught it in the act and it happens to be that the voltages of 2 strings of panels attached to the 2 MPPTs of the inverter exceeded the max 500v of the inverter (string 1 5x Longi 570w panels was pumping 240v+ as at that time while string 2 5x Jinko 625w panels were pushing over 265v both exceeding the 500v max voltage).

As I saw that I quickly switched off string 1 breaker and the inverter stabilized instantly which suggests that the input of the 2 MPPTs are somehow connected in series or something like that as one of the MPPTs can take 500v alone but the 2 MPPTs combined together is still 500v.

No matter what you do, do not exceed the max voltage of your inverter and take not of the tolerance of the VOC of your panels when connecting your panels to your CC or inverter to avoid stories just in case your inverter or CC is not equipped to handle any form voltage spike above the rated max voltage of the inverter or CC.


@Jonescosmos the 500v is for the 2 MPPTs after all

I think for SRNE inverters, it isn't like this, infact in one of the installations i had with an SRNE inverter with 8pcs of 550watt jinko panels per string n yet nothing of such has ever happened