₦airaland Forum

Thanks ayusadeg.
Just seeing your message and i appreciate your input.
on it. already.
Have a great day ahead
[quote author=ayusadeg post=81434980]Many people have denied themselves of this recruitment because of the grammar used in the advert, your course of study does not need to be mentioned under general duty the 'etc' there has covered it, go ahead and

Thanks for the quick response Mr Chris,
am just being a cheapskate here, trying to bypass getting a generator cabling to the inverter and using the output of both PHCN and GEN after the changeover and in the sequence of Line one for the AC1 Input and Line two as AC 2Input.
Guess its a NO GOOD Area with my diagram.

CC: Chris81964

chris81964:
You need three inverters to make it happen. Each inverter will represent a phase.

Good day everyone, have got a question pondering on my mind all day long, is this setup possible on Victron Quattro and also .. from the same power source ...
please kindly examine the picture attached.

Good Morning Everyone, Please there is this issue i can;t understand ........ am a Physics B.Sc Holder and i can't seem to find a place/position to choose.
I tried the Corps assitant CAII CONPASS 04 ..... and though advert says "medical" and the position is for O'Level applicant.
am just so confused on what to do.
please i need guidance.
Thanks everyone.

Modified post
I found a section for general duty ..... Assistant Superintendent of Corps II (ASCII) CONPASS 08 can it be where to apply to? Please advice.

Nice setup ...... looks yummy!

mcTrinity:
hi Ola,

you're looking at something like this... the two separate battery banks can be independently charged with inverter or solar...

please, ensure you use a quality Change over switch. I used 100A A&Bt brand ... or you look for MG brand. confirm the thickness of the current-carrying part...

Hope this helps

cheers

good evening everyone and @Olaolu11,

I believe and suggest that your multiple panels could be an issue here, they are all not in sync i.e. from a single manufacturer ..... meaning they will work at the power and current of the least in the parallel connection and also note name plate dont mean it say what is written, shady business of wrongfully stating a panel to be higher than what its suppose to be could have happen. but the weather might have also caused the drop in amps.

and even if the above was to be overlooked, the 10AWG - ~6mm² cable that you have would make your voltage and usable amps to go to waste, so i'd suggest that you if you want to keep the panels and enjoy better amperage input, then wiring those panels in series would do you solid big time, a 30A Epever MPPT would be great .... but maybe after you might have settled down from the cable commitment you recently did.

school go soon resume, eh!

and lastly you need some serious cable management skills, check "cable porn" on Reddit .... sure you gonna be inspired.

check the chart i made a while back for the AWG-metric conversion
NB: with MPPT you'd get to keep your 6mm cables.

Kr
Olopan

olaolu11:
3 panels of 150watts each connected in parallel with 10awg dualcore cable to 60a pwm cc and 200ah battery. Distance from panel to battery is 25m. Juicecoming as measured on cc is 6.5. How come?

Good evening everyone,
please have anyone here got links to a local RE seller who deals in flexible solar panel?
am looking to get a few for my wacky lassie 16' fishing canoe have got in the pipeline.

hardywaltz:
Good evening house,
Please i need urgent help.
My office intends to install a solar system.
The installer gave a very questionable quotation.

Below is a brief summary of the installers spec
30kw 3 phase inverter,
100 units of 300w solar panels (24v)
60 units of 12v 200AH SMF

Duh its not in my department but my colleague asked me to help him since i have solar system in my house.

I made a few calls but it seems 40 kva inverters are not too common.

Based on some research i came up with a
40kva Inverter (360v)
105nr of 340w mono panels in 15S 7P arrangement
60nr of 12v 200Ah batteries in 30S 2P arrangement


Please
1. What brand of 40kva can be recommended ( if possible capable of custom setting for lithium battery cahrging )
2. Are there lithium batteries that can be connected in series to achieve 360v.

Good evening hardywaltz,

so i will try as much as possible to take your request line by line.

For a start am not too sure that there is a 30KW 3 phase par say, NB: 1KVA = 0.8KW
but if judging by the 40KVA in your third paragraph, then that's a 32KW system, again not sure of its existence but eh! I.D.K.I.A
So I guess the installer has an indian inverter type in mind.
¬
For the panels Not bad the solar panels are good but i would do things differently.

60 units of 200Ah - to me is a bit much, if right he'd like to do a parallel string of 360V x 200Ah x 2 = 144,000Wh
[
i'd say from your findings you've things right, vaguely.
but charge controllers determine solar panels used and loads and charge time affect it all.

On the battery too, i'd say spot on.

since Lithium battery is newer to this hemisphere, I’d proceed with caution to play safe.

BUT

I would have done things differently to achieved a more simple and efficient system.

I will choose a 48V system, eh! I don’t want to die of high voltage while connecting my batteries due to a cut in my safety gloves.

Now that am certain of my system voltage, i will proceed to get premium product to cover my huge investment.

For the Inverter
Since this is a 3 Phase installation I will go with a Victron Quattro inverters/charger of 10Kva, paired to work in synergy of three phase [R,Y,B]
this way I’av bypassed high voltage and still end up with an equivalent power, even better with 1.0 pF [power factor].

Overview
I will make use of an AC - DC coupled system, so that my loads will run off my PV - inverter during when the sun is up and my DC charge controllers will charge the batteries and still be able to provide more in case of more power needs and the wake up the installation in case of battery too low to get inverter systems up when low.

So i will go with a PV Inverter of around 25KW which should be sufficient to power load when needed and especially at full power and a solar charge controller of high Voc that can charge my battery when PV inverter covers my loads.

i.e.
92 nos of 300W canadian solar panel to a 25KW PV - inverter [ allows oversizing]
and
18 nos of 300W canadian solar panel to a smart charge controller

in total 110 nos of 300W panel equivalent to 33KWp.

For Batteries
Concerning the batterries
I will go for Hoppecke batteries, of 2V ~1500Ah nominal @ 72KWh or 2900Ah Max. @ 139.2KWh

this means that
I won’t change my batteries in the next two - three years soon but more of five to seven years, and making sure that ROI [ return on investment] is guaranteed.

With a easy to understand system.

Credit: Rendezvous Solar
free free to contact me if non of the info is not clear enough .
Rendezvoussolar@gmail.com

the image should shed more light too

durumibaka:
Gud day, pls i need a clarification on this, 20a 12v/24v charge controller and 300w×3 mono crystaline solar panel, can it work together..

Last i checked.
20A SCC PWM types
have 260W max. PV power @12V
and 520W Max. PV power @24V
if manufacturer didn't state Oversizing is not issue ... then i'd suggest you stay within the spec sheet.

My POV is that those 300W solar panels will waste away on a 12V config. i.e. the higher voltage of Vmp will not be efficient.
except on a 24V config.

i'd suggest you try 150W panels instead as its Vmp is within 18V . .... will work better if stacked in parallel, to its 300W equivalent.

i'd suggest you get a 60A PWM charge controller i.e. 780W max @ 12V and 1560W @ 24V.
... In short ... e no fit work except tweaking around it ....
@
CC : Ojeysky Olaolu11
This image is for you .... worked on it earlier today.
Hope that my help will be useful to your purpose.

Kr
Olopan.

Good day Olaolu, i cant help but notice you quoted me.
i tried following your situation a while back but i have lost track of it.
so please help me make sense of it.
* inaccessible rooftop
* shady available ground mount.
* landlord policy not making sense.

You can Private chat or message me.
then i will love to proffer you a solution.

[quote author=olaolu11 post=80564982][/quote]

ojeysky:
Sure I used the attached recommendation that I got from a friend after we brainstormed about it. Though I didn't get to plan for 12 anymore. I only did for 9 panels. Ingredients:

3" Galvanized poles
1.5" angle bars
12mm rods combined with 8mm that I had at home.

Welder put it all together and then the rest is getting it strongly fitted with concrete. It's standing now. Hopefully next weekend will get to move the panels.

Regards

whew!! Hope this didnt make a bit of a hole in the budget ... its a pretty good build .... dual purpose for relaxation, but as long as it serves it purpose, i'd say carry on. and
have sun.
cheers

ojeysky:
If you can guarantee equal sunlight to all panels then my suggestion is that you get a controller with high voc (yes you imagine I will suggest mppsolar ) and then contact your panels in series,
Get a armoured dual core 10mm to do your entire cabling, it's 1k per yard, cheaper for you since it's 2 in 1.

PS: I am still an apprentice in this solar thing Sha o

Have you found a better way to get your standalone buildup make out yet.....
let me know, i would like to throw in a few pointers.

kiekie1:
Smartcellglobal services
081_350_31951

Hello, Could you please show with pictorial explanation the input of each breakers and output and why.
i get confused sometimes.

bollucks these guys just wan ruin my evening with vex

screw it .... Nigerian team are making me pissed ...darn it

jaymichael:
That's my Island (TOMARO) I live there. That Church is also my church (New Creature Evangelical Church). The village you disembarked from is itu-agan not Snake Island. Snake Island is Igbologun , though it is close by. I used to do that Tarkwabay hiking those days but I have been so busy with work these days to engage in my favorite pastime. I don't think I can trade the life here for the boisterous Lagos city. I am investing over 300k on solar power installation soon to take care of the light issue.

i sent you a mail, please respond.
i'd like to discuss further with you.

how much the UPS please ? still 3k

Good evening everyone and wish everyone a fruitful new month ahead.
Please i want to know if anyone have got used 100-200W solar panel for sale..... i need for urgent buy and at affordable price. Thanks.
DM or a reply to this message is appreciated.

Due to the several calls we've received, we suggest that application letter and CV be sent to the mail directly instead.

Okikioluwa Junior Academy is presently recruiting suitably qualified candidates to fill the position below:
Job Title: Class Teacher
Location: Idi-iroko, Ibadan.
Opening Salary is Attractive.
How to Apply : Send your application letter and CV to wiseroland1@gmail.com
Deadline 30th April, 2019

Applicants in Odo-Ona Elewe, Academy, Idi-Iroko are most preferred. But other areas are highly welcomed too.

Peterjosh:
Hi...

I need a very cheap and durable solar device to just power my laptop consistently.

I live in a village with no electricity..

Where can I get one and what's ur advice??

i can fix you up with an affordable solar power supply. Lookup my contact @ signature

ojtech8291:
Good afternoon everyone! Please I want to know if 10kva inverter can handle 10hp 3 phas borehole considering the surge capacity and which type of the inverter is good for the job? Thank you!

In my own POV, i'd say NO
HOW;
A 10Hp is approx. 7500Watts ...
now a 10KVA is also .. 8000Watts i.e. if by a power factor of 0.8 ....
putting into consideration a 2 or 3x surge .... i'd say it's an idea DOA .... personally i dont think it can work but i be small pikin for solar inverter world ... i'd love if my "Oga at the top, talk for the matter". Thanks
also in addition its a 3- phase ... most inverters i know of are in single phase.

Saipro:
Pretty impressive. Kudos!

I'm in Ilorin at the moment. Can we hook up sometime?

sure, i'd like that ..... DM me and i'd drop my contact.

i'd like to take my time to appreciate the works in which you guys are having done here, its great, enlightening and educative ......... i just thought to post some of my installations in Ilorin@ an undisclosed bank.

bigrovar:
Try what oga pranil posted or wait for a new venus image that supports the Rpi+. The issue is the venus uses an old boot loader which is not compatible with new hardware included in the new Pi particularly network drivers. Pranil linked post gives a work around the problem but might be better to wait. The venus community are very active and a new image should be released very very soon.

I was tempted to use VRM too for remote logging and monitoring what held be back was the proprietariness of the VRM service (not venus) in the end I settled for emonpi with emoncms. That gave me greater control over every aspect of logging and monitoring. You can see my dashboard in my signature.

i will sure love to give them a try but quite frankly, haven't done any remote system all myself but very familiar with linux commands and its queries .... but will be happy to be thought.

and
CC: pranil
i noticed that you have only just one Quattro which i believe is a single phase and that being able to handle a few things ...
plus if the generator is 20KVA then you can simply go using 2 more quattro and one as the master and other slave .... with a maybe a pheonix victron to be strictly for critical et cetera.


plus have worked with fronius 25/27 Eco series three phase and i will say that you have the system properly setup ..... well done.



PUBLIC NOTICE : I dey find jobs my ogas in the house abeg.

pranil:
If you see the logo that is the correct screen. The network issues may be due to raspberry Pi b3 +

see another user who was able to solve it by twisting arm and leg
https://groups.google.com/forum/#!msg/victron-dev-venus/nZuRN96PJHQ/zSSpMrPCBAAJ;context-place=topic/victron-dev-venus/YAu2dENQ-wg

To acess venus you have to be another computer and point your browser to the Ip address of the venus. The VRM screen is available on remote PC and not the pi

https://www.victronenergy.com/live/venus-gx:start

see 2.2 onwards

please i will lile to get in touch with you ....please give me a link to do that and i sent you a message PM. THANKS

Hello, everyone i recently discovered this forum and have being quite happy with it, especially the fact that am discovering and learning newer things too.

BTW i want to use this opportunity to say to everyone that i dont mind working for another here especially one looking to expand there employee base and to employ a young chap. with various solar experience and electrical background. Thanks
cc: totalgreen01
nextdaypp
niyiomolyunade
makavele
wazari
S007
earthrealm
dapsyra
kiekie1

Good morning Mr, can i please know how to build this ... am a DIY enthusiast and am very keen on knowing it.
please do let me have your details :DGood morning Mr, can i please know how to build this ... am a DIY enthusiast and am very keen on knowing it.
please do let me have your details