ojeysky:


Is this amoured cable with earth coating? Can you share picture and regards your location?

olaolu11:
Does anyone know xontact if where u can get good quality 6mm or 10mm dc wire that is pocket-friendy?

My new(2 weeks)battery refuses to charge. Inverter charging indicator keeps blinking instead of being on continuosly until full charge. I use luminous 900vac inverter and battery is mercury 200ah.
What could be the problem?
Pix is the battery. Thanks

NiyiOmoIyunade:
So sorry for the damage.

The relay is supposed to be rated around 25-30A. Were you switching loads larger than the rating? Perhaps with grid available you were running the inverter at or above its rated capacity? This is a common failure mode when grid supply goes off while heavy loads are being powered and the relay attempts to switch a load larger than it was designed for - especially inductive loads.

As you have the inverter open can you confirm that the relay contacts are actually welded/arced shut?

I think it should be a fairly cheap replacement to source a chinco replacement relay - depending on the ratings, you can see it in Arena Oshodi for like 3k to 6k.

I am happy you were courageous enough to open up a premium inverter - means you are a savvy professional or an accomplished DIYer.

This just reinforces my conviction that anything even premium inverters can fail! As I recently acquired a Victron Quattro 8kva. I will be sure to baby the unit and not subject it to too large a load - I hate to open up any personal use equipment and will want to sell it off if I ever have to repair it.

NiyiOmoIyunade:
It depends on your specific inverter.

NiyiOmoIyunade:
It depends on your specific inverter.

What is quoted on label sticker should be the rated continuous running power as the main highlight then reference the surge capacity if it is noteworthy.

The high end inverters like Victron or SMA or Magnum e.t.c you can typically run them at near 100% of their rated capacity with no issues - *this is subject to standard temperature derating of the inverter load*

The asian origin inverters are a mixed bag - you generally want to stay within 70-80% of rated capacity for indian brands like Su-Kam, Luminous e.t.c especially with surge loads and all - these generally seem to have zero to low surge capacity - they are designed more like UPS.

For chinese brands like MustPower, these have up to 3x surge handling capacity but for continuous running you still want to stay within 70-80% of capacity. These mustpower types have robust transformers and FETs, the failure mode is commonly the control circuitry and associated components.

For all those other chinco el cheapo inverters especially the transformerless types, you generally want to stay within 50-60% max (no surge loads at all) if one hopes to use them for a long time without breaking them.

olaolu11:
Does anyone know xontact if where u can get good quality 6mm or 10mm dc wire that is pocket-friendy?

My new(2 weeks)battery refuses to charge. Inverter charging indicator keeps blinking instead of being on continuosly until full charge. I use luminous 900vac inverter and battery is mercury 200ah.
What could be the problem?
Pix is the battery. Thanks

olaolu11:
Is it possible to connect ups for charging battery? How can i connect ups to battery to power ac fans to use overnight?

ceaser:


Thanks for looking my way Oga Niyi.

I was planning to get a prag inverter for mumsie's freezer. Freezer was initially on a 1200w/12v rated chino stuff but occasionally at start up draw of 1400 watts by the freezer, the inverter flops. I have to do 2 or 3 quick restarts of the switch to get the freezer to eventually have the start up draw of 180 watts and then things go smoothly. This Thermocool freezer is rated 110 watts continuous power but i can't explain why it has to give a start up of 1400 watts at some times when at most times the start up draw is 180 watts (sadly the wattmeter did not detect this arbitrariness when the freezer was tested at the point of purchase).

Reason I'm thinking that a prag [b][/b]750kva/12v may have 1500 surge capacity required to start the freezer without having to do those 3 minutes priming of re-starts to get the 180 watts startup draw, a process that seriously limits the prospect of automation for daily operations of the freezer.

Do you think a prag 750kva will be alright or a higher capacity? The power needs is only for the freezer and no other appliance added.

Saipro:
I have a Midnite Classic 250KS for sale (part of an order surplus including several MNSPD-300 and a disconnect box)

- max output current is 56A
- max input VoC is 250V DC
- max battery bank voltage is 120V nominal (yes, it can handle ten 12V batteries in series, for those 96V and 120V inverters used in ATMs, offices and some domestic installations)

Price is fixed at N360,000

O8O-239O-23O5 (WhatsApp and calls)

Deluxe8000:
pls is there any 12v solar hybrid inverter that can work "without battery" ? i.e
SOLAR PANEL>>>INVERTER>>>LOAD

Deluxe8000:
pls is there any 12v solar hybrid inverter that can work "without battery" ? i.e
SOLAR PANEL>>>INVERTER>>>LOAD

olatade:
i have a question. i use a luminous hybrid inverter and I'm planning on upgrading to a felicity mppt charge controller. the question is,will charging the batteries with the inverter and controller simultaneously have any negative effect on my batteries?

harizonal123:
There is this circuit breaker of 63amps that is connected between my 500w solar panels and my charge controller. When the intensity of the sun is very high the circuit breaker keeps tripping off each time I put it back on. Pls will it be advisable to replace it with a 100amps circuit breaker

NiyiOmoIyunade:
Please provide more info - how are your solar panels setup? 250w × 2 in parallel or series or how?

Even at 12v, 500w is about 42amps. A 63amp breaker should not trip at 42amps.

Things I suspect - your breaker is not DC rated - someone repurposed an AC breaker for DC use - this is a very dangerous condition indeed.

Using a 100amps breaker where your application calls for less defeats the purpose of protecting your wiring.

If possible, please revert with pics or spec of your 63amps breaker and PV setup and the house can advise further.

NiyiOmoIyunade:
The answer depends on the type of battery you have and a few other variables - Flooded batteries don't like too fast of a charge and Gel batteries too although they are better than Flooded in that regard. With AGM batteries you can push in 25 to 30% of rated capacity with no issues.

You need to provide more info - battery capacity, inverter charging current, usual level of discharge, size of PV array e.t.c

If your purchase decision is not already locked, do a Fangpusun instead, based on my field experience, you should get better mileage here.

harizonal123:

My pv are wired in parallel 12v 500w.

Never heard we have AC and DC breakers. Seems the one I connected is an ac breaker. Pls can u show me a picture of A DC breaker and where to order it online. Someone suggested that I should use the 100amps breaker to serve as a switch during maintenance of the panels and to serve as thunder arrestor.
Below are pictures of my breaker installed that seems faulty and the 100amps I just bought.
Pls I'm a novice in this field & I did all these setup by my self. Thanks for your explanations

Trippledots:

This your charger, is it serving you? How long have u been using it?

harizonal123:


3 weeks old. For now charging very well but the bulk charge value is set at 14.2v and its not adjustable. Which I think it's a little high. Will change it as soon as I have money to do so

harizonal123:

My pv are wired in parallel 12v 500w.

Never heard we have AC and DC breakers. Seems the one I connected is an ac breaker. Pls can u show me a picture of A DC breaker and where to order it online. Someone suggested that I should use the 100amps breaker to serve as a switch during maintenance of the panels and to serve as thunder arrestor.
Below are pictures of my breaker installed that seems faulty and the 100amps I just bought.
Pls I'm a novice in this field & I did all these setup by my self. Thanks for your explanations

earthrealm:
Am having an issue on an installation.
Fangpusum 60a/48v with external display...victrone clone.
Blue led light is blinking. 0w, 0a, 93.3v .CC is conneceted to 2p3s 250w 24v panels and 2 x 22v 200ah battery.

Has anyone experienced this and any resolution in site?.
Unit has been working ok for abt 3months. With the 0w and Oa...serms juice from panels is not being converter to charge battery

adrusa:


Which of the lights?

NiyiOmoIyunade:
The answer depends on the type of battery you have and a few other variables - Flooded batteries don't like too fast of a charge and G[b]el batteries too although they are better than Flooded in that regard[/b]. With AGM batteries you can push in 25 to 30% of rated capacity with no issues.

You need to provide more info - battery capacity, inverter charging current, usual level of discharge, size of PV array e.t.c

If your purchase decision is not already locked, do a Fangpusun instead, based on my field experience, you should get better mileage here.

GeorgeD1:
pdozie,
depends on the distance between the two but generally the advice is to keep them as close as possible like maximum of 2 feet.

for that distance, a 16mm cable should do just fine.

Oshomo12:

Noo, just one, 28.8 absorption and 27.6 float.