₦airaland Forum

JUO:
Hello friends.
I hereby introduce this piece of a gadget to you.
I have been testing this small but mighty machine for over 3 weeks now.
The results turns out to be impressive.
I have a few number of them for sale to anyone interested.

It is 30 and 40amps mppt controller with additional features of equalization of flooded batteries 28 days and inbuilt display .

New Epsolar Tracer A series available. For small setup 12-24v. . Max pv input voltage 100v. 30a only 25k for the first buyer
Features:
• Advanced MPPT technology
• High tracking efficiency no less than 99.5%
• Peak conversion efficiency of 98%
• Ultra-fast tracking speed
• Accurately recognizing and tracking of multiple power point
• Multi-function LCD displays system information intuitively
• User programmable for battery types, load control etc.
• 3-Stage charge with PWM output
• Common positive grounding design
• RS485 port with industrial standard MODBUS open architecture
• Fully programmable function via PC software or remote meter

Electronic protections:
• PV reverse polarity protection
• PV short circuit protection
• PV over current alarm protection
• Battery overcharge protection
• Battery over discharge protection
• Battery reverse polarity protection
• Load short circuit protection
• Load overload protection
• Overheating protection

N.B Remote not included
o8o-987-33709

Super device, you need to see this little machine in action

Please rescan some of the stations are back on horizontal

Hello friends.
I hereby introduce this piece of a gadget to you.
I have been testing this small but mighty machine for over 3 weeks now.
The results turns out to be impressive.
I have a few number of them for sale to anyone interested.

It is 30 and 40amps mppt controller with additional features of equalization of flooded batteries 28 days and inbuilt display .

New Epsolar Tracer A series available. For small setup 12-24v. . Max pv input voltage 100v. 30a only 25k for the first buyer
Features:
• Advanced MPPT technology
• High tracking efficiency no less than 99.5%
• Peak conversion efficiency of 98%
• Ultra-fast tracking speed
• Accurately recognizing and tracking of multiple power point
• Multi-function LCD displays system information intuitively
• User programmable for battery types, load control etc.
• 3-Stage charge with PWM output
• Common positive grounding design
• RS485 port with industrial standard MODBUS open architecture
• Fully programmable function via PC software or remote meter

Electronic protections:
• PV reverse polarity protection
• PV short circuit protection
• PV over current alarm protection
• Battery overcharge protection
• Battery over discharge protection
• Battery reverse polarity protection
• Load short circuit protection
• Load overload protection
• Overheating protection

N.B Remote not included
o8o-987-33709

This will be nice

richmon74:
I usually stay away from making this kind of comments am about to but for this one i really feel like i should.

In economics of Engineering, we were thought to make the best use of what the client has on ground already.
You should avoid making changes according to equipment you feel are not pro, rather you should base your design on what the need of the client is. In this case you didn't tell us what the need of your client is. Your planning to sale off the solar panels any replacing it with an expensive inverter doesn't make sense to me except i didn't understand you well. With that system and your recent upgrade to FM80, I want to believe if the installation is properly carried out (with proper cable sizing/quality, proper terminals etc) that the system should be very effective with relative to the size.

What will your client gain buy buying an inverter with almost half a million naira when he doesn't even have batteries? What advantage will he get by buying PRAG over luminous?

In my advice, power generation is always priority to storage. As such, the solar panels which you even want to sale off is more important than the inverter and batteries except the present batteries are bad.

There is absolutely nothing wrong with the Sukam inverter if you depend more on solar for charging the battery. Depending on inverter for charging the battery doesn't make economic sense to me except the person is not paying bills for power.

Finally, we always advice client to upgrade only on certain conditions like;
- If he has grown financially over time and wants to move to pro products
- If he has moved to a bigger apartment and can afford the upgrade
- If the system he had installed was wrongly designed and wasn't operational for at least 60% rated efficiency
- If the previous system failed and he could afford something better
- If we are called and asked to upgrade.

The upgrade must make economic sense and improved efficiency before we get involved.

Please pardon me if this is not what you expected

best advice. Oga has spoken

Saipro:
I concur with previous ratings and comments. My own addition is: I wish there were a way we could give feedback to make improvements. My greatest grouse with most Chinese inverters is their high standby energy consumption.

imagine seeing 24v/2a cooling fan on one like that. I had no option than to dump it. Self-consumption was over 60w. I will post the picture later. But I liked the machine for two things. 1. It has AVR 2. Zero change over (DC to AC) is zero just like online ups. Believe me if you see prag with avr and ups function their price go tear pocket

12v/6a to power electric motor?

Tested their battery also this was the result I got from their 100ah. At a time I was pumping 33a into the battery (100ah) it was never warm nor hot. I pumped in 20a into one luminous 200ah battery last year and the battery slept

earthrealm:
prag all the way!!!...4kw 24v prag is abt 140k, more functions than luminous inverter.
you cud try luminous is ur pepper small.............but since ur batt is 2v 500amphr...u need beta inverter that can crank out 50amps to 70amps.
no 12v inverter is capable of that except mayve the american made inverters...ur best bet is going up to 24v................thats the wahala with the 2v batts.....they r not for thin wallets

Bros prag is just a common Chinese inverter. In charge controllers when you mention Morningstar or Outback nobody will mention epsolar cos they are not of same class. This machine is not a Chinese inverter. I have posted the spec I know some people will say there are no 12v inverter with 40a charger. Tested and confirmed but it doesn't come cheap the price is higher than prag but the maximum charge voltage is 14.4v which is excellent for AGM and GEL batteries

No disrespect boss prag is a learner to the machine I'm talking about

Im2Busy2Bother:
So Mercury inverters are also like this? So which inverter will you recommend that won't break the bank ( my cousin's bank dey fragile oooooo ) . He is looking at a 12v and 24v DC inverter. Between 2kw to 4kw capacity. He wants the 12v to handle 6nos of fairly used 2V 500AH batteries

check this out if you are ok with it contact me for more details

Im2Busy2Bother:
Buyer’s Nationality:

China
Seller:

Must Power Limited

Seller Website:

www.mustups.com

Seller Address:
Bldg.D, Huachangda Industrial area, Hangcheng Road, Xixiang
Town,Baoan District., Shenzhen, Guangdong, NO.467, National
Highway 107, China
Initial contact with the supplier:
Online Supplier Directory
Type of product(s) being purchased:
Inverter/Charger, Solar inverter
Value of the Purchase Order when the incident occurred:
6,001 to 12,000 USD
Destination market of order in question:
Nigeria

Type of Complaint(s):

lack of labor, scams & other unethical activities
Stage of relationship with the supplier at the time of the
incident:

Order #3-5

User Experience:

After buying some limited sample inverters from this seller in
2013, we decided to start full commercial orders in 2014.
We ordered 2 different products with total cost of about USD
10,000.
In the process of selling the first batch or the commercial order
we started receiving complaints of malfunctions and faults from
customers. We even found a unit of one of the 2 products did
not work at all right at the time of installation despite having no
sign of physical damage or ingress of any liquid or fluid.
Soon, we realized we were faced with a high failure rate of 10%
which reached a peak of about 15% by the time all the units had
been sold for each of the 2 products.
We complained to Tina Yuan who was our sales contact using
email (musta@mustups.com) and by phone (+86 13420968535,
+86 189 4872 0962) and by whatsapp at different times but
despite her promises nothing was done to address the problem.
Several emails were sent to Tina and to the sales team mailing
list and most of the emails were not replied.
At a point Tina admitted they have received similar complaints
from other resellers about the failures of the control board in one
of the products which usually resulted in this particular product
not accepting mains/utility power for battery charging or bypass
operation. She indicated she will arrange for replacement boards
to be shipped to us but failed to do so.
The last complaint was made to Tina during the last 2015
Intersolar event and she asked me to send complaint again by
whatsapp which I followed up with an email but she did not
reply to any of these.
I informed her I will use all means to report to relevant agencies
or authorities about this dumping of poor quality products
without necessary support by MUST and the effect this will have
on their brand image but still there was no response.
Every attempt to contact the senior or executive management of
Must Power was also not successful which seems to be
deliberate to shield the company from taking responsibilities.

User Recommendations:

I learned that you must not be deceived by Chinese companies
that pose as manufacturers but lack real technical support for
their products. They may have good website and even showcase
products at global industry events.
I learned that Must Power does not seem to have any strong
technical team as we were never handed over to a technical
team to resolve the problems.
I advise other buyers to beware of this seller as they do not
support their products. They are interested only in selling and
collecting payments.
This seller appears to be trading company that does some basic
assembly of generic components with little value addition other
than packaging.
If you must deal with this company make sure you have a strong
legally binding contract to protect you from potenutial losses due
to product failures. Ensure you secure a 3 years warranty for the
products at the minimum.
Ensure you have information and necessary contacts of their E-
level personnel.


Source: www.supplierblacklist.com/2015/06/23/must-power-limited/

mercury brother, all they do is to sell no after sales

But how is this illegal? You stopped them from buy of dollars through your bank. Now they have another means of transacting abroad you still call it illegal

Professional has spoken, case closed

Barezzi:
Thanks bro, but how will this timer help in the scenario i painted earlier?
There are times, during cloudy days that the battery state of charge is low. If the water pump comes on, it'll drain the battery and trip the inverter at low battery cutoff. If i had a voltage controlled switch instead of a timer, set it, the pump would never come on as long as the battery voltage is low and there's no utility power from the grid. I'd achieve better control...

So whether during the day or at night, i want my auxiliary loads disconnected when the battery voltage drops below a certain value, and reconnect them when the battery voltage climbs (by solar or grid supply) above another value.

If kiekie has such a switch, abeg hola!

bros that device is capable of anything you want. Here is how I use mine, during raining season I set the timer to on my fridge by 11am and off by 2:30pm. Cos there must little sun that can power my fridge during that time no matter how cloudy. During dry season I set it to come on by 8.00am and off by 5:30pm. You can set it to pump the water for 20 or 30 minutes everyday between 12:30pm-1pm that's the peak time for solar panel according to research I did. Lastly the timer has different settings. On, it will be permanently on like a bypass. Auto according to what you set. Off there will be no output. I can provide 30a and above if you need it

Barezzi:
i am very interested in this... What's the fail-safe mode? If your inverter and utility supply go off, does the timer reset?
I'd love to have a switch/setup that switches my fridge to NEPA when there's power, then to inverter at SOC => 50% when NEPA goes out. When the SOC drops below 50%, it should knock the fridge off the inverter, preserving battery capacity...

Is there a switch/relay/contactor/whatever that can disconnect/reconnect my fridge/water pump depending on my battery voltage?
Like the type that switches off the inverter when the cut-off voltage is breached, and switches it back on at another voltage...

it has a cmos battery that can keep time for over 6 months according to spare in my hand. You will need 30a for pumping machine although this will work because is 16a. Contact kiekie he is the dealer. Believe me this timer will make life easier for you

Goal

it has never failed since I started using it

Thanks Abu. I think this should help

For those who don't believe Chinese cc can equalize, here's the proof

Gotv or any other pal decoder will not work. Your best option is strong decoder or dstv HD decoder. For the strong decoder you must set the decoder to NTSC for mpeg 4 model and hdmi auto for HD model on another TV before connecting it to your Toshiba or get Orei XD-1190 PAL HDMI/RCA to NTSC HDMI Converter Built in Analog TV Tuner http://www.amazon.com/gp/aw/d/B00F3SOQZO/ref=mp_s_a_1_7?qid=1444268425&sr=8-7&pi=AC_SX110_SY165_QL70&keywords=pal+to+ntsc+converter&dpPl=1&dpID=41kQ%2BE%2Bb8QL&ref=plSrch

chris81964:
Mornigstar has a 600 V MPPT and Midnite Solar has a 250 V unit. Most controllers have a 150 V max. The Chinese have as low as 70 V and can max out at 145 Volts.
Having the recipe does not make one a chef. That is why forums like this are a gold mine.

and that doesn't come cheap, since MorningStar has 600v input are you saying one should put 550v or 600v since the the cc can handle 600v? High dc voltage can kill incase we have forgotten

abunafiu:
Yes. I will definitely be scared of usimg 4 by 4. At 3 by 3 typical total Voc is usually between 115 and 130v for every 24v panel.
My TSMPPT60 can handle max 150v. which means 130v is safe enough. However, 4 by 4 will result to 145 to 160V voc and that's when d problem will start.
Always consider the name plate values on ur panels with respect to your cc b4 connection.
With my 3 by 3 connection. My cc has never gone beyond 45°C . My cc has high temperature protection as well as high voltage disconnect.

Surge protection is highly recommended.

my oga easy o. Your boy remain loyal. Just an advise for those that don't know, high voltage will damage your cc

abunafiu:
I don't think his panels arrangement is responsible for the fault. To the best of my knowledge, mppt controllers have dc to dc converters that's controlled by some programme( firmware) for best performance.
It's simple, lightening struck his cc and affected some components on board. Over time, we have been advised to use surge arrestors. I am still saving for one though, except if solardepotng.com is kind enough to throw one at me as independence gift.

Alaba boys are good. You may give them a try.

BTW Earthrealm, u hardly acknowledge or reply mails. the other time u posted about stabilisers, I was kind enough to send u a mail including pictures of them. and so on. Same yesterday morning.

But you were scared to use 4x4 even when your cc is 150v input? Have you by any means checked the device temperature at 90v and above at noon? I believe you will be scared of 4x4 by the time you see the result. I think you know the result of an engine performing at a high RMP all the time?

earthrealm:
sad news...my morning star 45amp CC has died....my folks in the village hv been complaining that the inverter barely lasts 10mins for a couple of days now...was finally able to go check it, thinking twas the heavy rains or something...but alas in bright sunlight the CC was displaying 0amp,i checked the log and this zero harvest started 10days ago....they reported no ligtening strike...so am rally at loss what might hv damaged it......has anyone experienced this b4?...and any luck in repairing it?
the unit is about 21 months old. 4 x 250w 24v renogy panels connected in series. input voltage usually hovers around 130v.
system is hooked up to 2 x 200amphr luminous batts, and 1.5kva 24v luminous inverter....

any suggestions would be welcome, attached is a pic of the unit

voltage usually hovers around 130v. This is high, you suffered the cc to handle the voltage for 21 months. To make matters worse you were off grid, no resting time for the cc. Sorry for your loss but I think alaba boys can fix it. Always leave breathing space for anything be automobile or electronics next time. 2x2 would have been better

chris81964:
Bros I gave him a breakdown. Just because one has a recipe does not guarantee a good result. I have no fears. I have had people use my quotes to bid for jobs while others were legitimate buyers. It is part of doing business.

What is he still looking for?

JohnKester:
Thanks for your estimate but must state that a single figure does not suffice. Let's have the breakdown so we can study the individual components.

Cheers.

so that you can use the quote to order the items yourself and look for an installer. Who wants to be used and dumped. Men Don wise. You asked for quote and I believe the make of the items were stated, even. Eg panel sharp 250w, battery Trojan 6v/400ah, inverter prag 48v/6kw. Cc outback 80a. That is not enough for you. You want the street and the country where the items were produced. I believe no one will give you the full spec of the items because that is the secret of any contract.

Hum

JohnKester:
I sent a text to you yesterday regarding the Vmp of your Yashi 300watt mono panels. Still awaiting your response.

Cheers.

Which of these setup is 6kw. The inverter, solar panels or battery?

JohnKester:
Sir Frankie

I am in the process of moving into a new house and wish to install solar power since I am not connected to the grid yet. For this I need the following:

Hybrid 6KW 48V Inverter (Daltron, Xantrex, Outback or Prag are my preferences) to handle Solar, Generator and Public utility.
Solar charge controller, MPPT 80A (Morning Star, Xantrex or Outback)
Mono Solar Panels (24V 300W minimum capacity), German, Japan or American made
Batteries (AGM Deep Cycle, 12V 230AH or 2V 500AH or 6V 500AH) German and American makes which can be install indoors.
AC and DC breakers

Kindly give me a quote based on the above, using the appropriate quantities.

The project is to be executed in Port Harcourt and your quotation should therefore include delivery of the merchandise to Port Harcourt.

Please give me your most competitive prices and I will see if we can deal and I trust that all items shall be original and no China Nigeria specs.

Send email to reflections_galleries@yahoo.com.

Hope to hear from you soonest.

Cheers.

by the time you see the quote, I mean the price only you will request for Chinese cc and battery. Even governors and senators cannot pay for what you are requesting for, not because they can't afford it but they will prefer to run generator than spending almost 10M for 6kw in the name of American and European products. I wish you success, please post pictures and spec when you are done

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