JUO:
instead of sticking to 2 panels why don't you use the mppt as pwm by paralleling the 3 panels which I believe is the best option for you?

cooldipo:


Pls I hope this sudden demand of fairly used solar panel won't exposed our solar panels to pilfering o o.... This is bothering me a bit cos my panels are quite exposed. Those whose lost their car batteries lately will understand my concern more......Once there is huge demand or increase in value, security risk for those already acquire increases in Nigeria. Na beg o o

JUO:
contact me for good price

efuro:


Thanks Oga JUO!
I got the DC watt meters fast than I was expecting it.

Installed and working fine.
Thanks

JUO:
thanks for the patronage and trust

efuro:


Your effort is yielding result.
I was shock to discover my 10mm cables (about a yard long ) is eating my harvest up to 0.5v. For instance my CC was pushing output of 27.6v to the batteries but what the batteries are getting is 27.13v the painful aspect is dat there is nothing I can do except try another cable gauge.

I was a bit happy to note also that my 2kva -1600w microtek inverter has idle running of 27w even though I believed it was higher before installing the watt meter

JUO:
do you mean you use 10mm from battery to cc? Nice inverter you have there. I have been looking for something similar that I can switch off the charger completely and use only solar to charge. Anyone with one?

efuro:


Your effort is yielding result.
I was shock to discover my 10mm cables (about a yard long ) is eating up my harvest to 0.5v. For instance my CC was pushing output of 27.6v to the batteries but what the batteries are getting is 27.13v the painful aspect is dat there is nothing I can do except try another cable gauge.

I was a bit happy to note also that my 2kva -1600w microtek inverter has idle running of 27w even though I believed it was higher before installing the watt meter

earthrealm:


1 yard is about 3ft, are you serious or the yard is a figure of speech?, there shudnt be any loss if its 3ft long .

therealMcCain:
My system is up

2x2 config was done for the panel's

16mm flex cable was used from PV-CC-BATTERY

20amp DC breaker was used btw PV-CC

A new grounding was done for the panels & inverter DB. Each panel was linked with 2.5mm cable & connected to the new earth copper rod


My batteries are 200amp POWERSAFE batteries(fairly used though)

Upon reciept of the batteries, multimeter reading for each battery was 12.9v & 13.1v respectively

I finally opted for the balcony, though the setup is still a little bit crude, covered part of the protector with tapolin to prevent rain water


Haven't been around to monitor it but I know i haven't seen above 2A on my CC but i get as high as 78v

setup was done late Saturday, Sunday & Monday, cloudy days & i wasn't really around too

When the batterry was connected to CC, it was at 25v, later became 28.8v after setup on that Saturday, much much later though

Since the battery was almost charged, I don't know if that's why I'm getting low amps from the CC


Issues

1. My inverter gives out this sound every 7minutes with no indicator lights coming on

2. When I'm charging the inverter with NEPA even though the inverter is OFF, it still supplies, why is this ?

3. I have noticed this incident with 3 sockets in the house: when a load is connected to these sockets, when the switch is put on, the inverter trips, the short circuit/over load light will come on

I know it isn't overload cos what I plugged was phone charger, at another time it was a rechargeable fan, what could be wrong?

Once i put off the inverter and put it back on, evrything works well, even if u switch off that same socket off and on, it doesn't trip again

If the inverter is switched off for a long time & it's put on again, the same thing will happen again

4. One of the socket is the type that has a led indicator, if the switch is off & you plug ur appliance mid way, that light will come on
Is this a wiring issue or the socket is Bad or it's an inverter issue?

Remember the lighting points & sockets for inverter has its own DB different from NEPA DB

CC
efuro
Bigrovar
Earthrealm
DMerciful

earthrealm:


issues 3 and 4, are most likely house wiring issues, you need a smart electrician to trace and rectify.
issue 1, is inverter based, post your inverter make so people with similar inverter will talk more
as per your charging issue, you need to state your cc make, so cc display in and out, so make sure you are looking at the correct display. 2ndly till u drain the batt, thats when we will be sure if anything is wrong with your cc or not

issue 2. thats how most inverters are designed, to charge even when off, if u dont want it to charge at all, you have to switvh off the ac socket or unplug

therealMcCain:


Thanks

The inverter make is Kevin 1400va, 24v

CC make is epever A trader series 30A, 100V

There is a button on the CC that toggles btw Pv -Battery-load parameters

I have checked that of the Pv parameters, though Will study the manual more

Pictures will be very much later as I am not around for now

On the wiring issues, will have the electrician or another one do a thorough check, I engaged this one cos he did the initial wiring of the house & to prevent these issues was why i went for a dedicated DB

On the inverter being charged, my question is why is the inverter supplying when it's Off

The inverter is off & charging I get that part

Why are my appliances coming on even though the inverter is off? Are the appliances being powered from charging source or the battery

efuro:


Your effort is yielding result.
I was shock to discover my 10mm cables (about a yard long ) is eating up my harvest to 0.5v. For instance my CC was pushing output of 27.6v to the batteries but what the batteries are getting is 27.13v the painful aspect is dat there is nothing I can do except try another cable gauge.

I was a bit happy to note also that my 2kva -1600w microtek inverter has idle running of 27w even though I believed it was higher before installing the watt meter

therealMcCain:


Thanks

The inverter make is Kevin 1400va, 24v


Why are my appliances coming on even though the inverter is off? Are the appliances being powered from charging source or the battery

Feshizzy:
Good Evening House,
Please make una help update the thread as e dey,
Those that have been using grade A battery from day 1,
How far?
What are your short comings?
Who else has observe the battery voltage when the ups/inverter goes off?

Under idle conditions it's best to maintain a 50% DOD so you can have like 4+ years from your battery,

Make make una update the house on this beautiful setup performance so far!

----------------------------
-----------------------------
----------------------------

Please who has ever used a fully refurbished battery and how was/is the experience?
Kindly help out with performance report!

Thank you in advance,

kiekie1:
A very clean fairly used power inverter " Synergy 3.5kva 48v pure sinewave inverter system " is up FOR SALE ! Board , transformer has never been worked on and works as factory new ..

Price: #150k

HURRY : O8I35O3I95I

Penuelseun:
Do you sell car inverters? e.g suoer 500w or 1000w inverter

cooldipo:


Pls I hope this sudden demand of fairly used solar panel won't exposed our solar panels to pilfering o o.... This is bothering me a bit cos my panels are quite exposed. Those whose lost their car batteries lately will understand my concern more......Once there is huge demand or increase in value, security risk for those already acquire increases in Nigeria. Na beg o o

efuro:


At least, so says the watt meter & CC readings.
Always 0.5v difference.

The ba3 are wired @ 24v series x 3 parallels. No special loop to equalise the three 12v nodes.

pranil:


A 10 mm2 cable will loose 4.6 mv per amp per meter How much is the current ?. if the shunt of the meter is 200 MV then 0.2 drop is in meter itself .see attached. Meanwhile 0.5 v is 2 % difference which is well within tolerance level of measuring instruments ( normally they are class 5 ) if you want accurate readings you need class one meter like fluke Multi meter or hight quality meter ( e g. BMV 700 e) panel meter .

Ferdiwar:


That could be measurement error from the CC or watt meter as they are all prone to some % of errors.

efuro:


2x2, 20amps (well maybe 4 now daz wot u want), 16mm are splendid. Also ur ba3 @ rest 13v is nice.

About 2 AH indicated by cc means ur ba3 are floating & do not need to draw more harvest from ur PVs.

On ur inverter, I think it is back feeding itself due to ur faulty sockets. Remember u said it comes on wen switched off if u slightly insert loads.
But a crude way to check of ur inverter is not back feeding is to remove output loads to ur DB & connect sometin like frezer to the back of the inverter for about 20mins, observe its performance & beeping. Ur will know if back feeding as affected it or a factory defect.

Don't u have appropraite breakers to cut off back feeding before being detected by ur inverter ?

Anyway I appeal to gurus in the house with similar teething problems to contribute.

Cheers! Solar rules.

therealMcCain:
My system is up

2x2 config was done for the panel's

16mm flex cable was used from PV-CC-BATTERY

20amp DC breaker was used btw PV-CC

A new grounding was done for the panels & inverter DB. Each panel was linked with 2.5mm cable & connected to the new earth copper rod


My batteries are 200amp POWERSAFE batteries(fairly used though)

Upon reciept of the batteries, multimeter reading for each battery was 12.9v & 13.1v respectively

I finally opted for the balcony, though the setup is still a little bit crude, covered part of the protector with tapolin to prevent rain water


Haven't been around to monitor it but I know i haven't seen above 2A on my CC but i get as high as 78v

setup was done late Saturday, Sunday & Monday, cloudy days & i wasn't really around too

When the batterry was connected to CC, it was at 25v, later became 28.8v after setup on that Saturday, much much later though

Since the battery was almost charged, I don't know if that's why I'm getting low amps from the CC


Issues

1. My inverter gives out this sound every 7minutes with no indicator lights coming on

2. When I'm charging the inverter with NEPA even though the inverter is OFF, it still supplies, why is this ?

3. I have noticed this incident with 3 sockets in the house: when a load is connected to these sockets, when the switch is put on, the inverter trips, the short circuit/over load light will come on

I know it isn't overload cos what I plugged was phone charger, at another time it was a rechargeable fan, what could be wrong?

Once i put off the inverter and put it back on, evrything works well, even if u switch off that same socket off and on, it doesn't trip again

If the inverter is switched off for a long time & it's put on again, the same thing will happen again

4. One of the socket is the type that has a led indicator, if the switch is off & you plug ur appliance mid way, that light will come on
Is this a wiring issue or the socket is Bad or it's an inverter issue?

Remember the lighting points & sockets for inverter has its own DB different from NEPA DB

CC
efuro
Bigrovar
Earthrealm
DMerciful

therealMcCain:


Thanks Sir

1. You said 2x2, 20A

Was I suppose to go for a higher breaker rating? The max of my CC is 30A

I saw 50A breaker but I felt that will be useless there cos of my CC amp limit

the parameters for the panels are

Voc-43.2v
Isc-6.24A
Vmax-34.8v
Imax-4.9A

With a 2x2 config what Current will I be getting? Will it be more than or up to 20A?

Before the panels were taken up, the meter reading from the 4 panels were around 36v each.

2. On the issue of breaker to cutoff feedback, the only breaker i have is the ones in the DB

So far, 2 sockets doesn't trip the inverter