Dam5reey:


To me 0ms is a marketing strategy... 10 ms is fast enough..

Asides being a marketing strategy. I was thinking that the output in line mode would be a stable 220V regardless of the input since it's uses double conversion to maintain 0ms transfer time (converts ac to DC and back to ac). And if that was the case it would eliminate need for stabilizer. Am I wrong?

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USA Magnum inverter 4124 ..... 930,000
USA Deka 210a battery .............190,000

Felicity 200a battery ...................90,000
Motoma 200a battery ................115,000
Cinemax 200a battery ................115,000
Cinemax 210a battery ................120,000

Morningstar 60a mppt ...............215,000
Morningstar 45a mppt................190,000
Tsm2 display ...............................60,000
Schneider 60a mppt ....................240,000

Battery equaliser 6-48v... 35,000 30,000

Epsolar Epever solar charge controllers
MT50 display ..................................15,000
Epever 12-24v 30a mppt ................50,000
Epever 12-24v 40a 4210N mppt ...........65,000
Epever 12-48v 60a itracer mppt....135,000

Epsolar PWM
30a 12-24v VS3024A .........30,000
45a 12-48v VS4548BN .......70,000
60a 12-48v VS6048AU .......80,000

Fangpusun MPPT
30a 12-24v .............................55,000
60a 12-48v mppt TR victron clone series ..125,000
60a 12-48v outback clone with display.......145,000
80a 12-48v mppt outback clone .................155,000

Must Power Star Light inverters with LCD display
1000w 12v=92k
1500w 12v=102k
3kva(2000w)-12v=115,000
4kva(3000w)-24v=155,000
5kva(4000w)-24/48=240,000
6kva(5000w)-24/48= 260,000
7.5kva(6000w)-24/48= 280,000
SS Power inverters with LCD display
1.5kva 12/24v= 75,000
2kva 12/24v= 85,000
3.5kva 24v= 130,000
5kva 24/48v= 160,000
7.5kva 48v= 280,000
10kva 48v= 340,000
10kva 48/96v (standing)= 350,000

Keye 1.2kva/12v(without charger) 13,000
Keye 2.2kva/12v(without Charger) 18,000
Keye pure sinewave series
Keye 800va/12v 45,000
Keye 1.2kva/12v 55,000
Keye 3.5kva/24v 150,000
Keye 3.5kva/48v 150,000
Keye 5kva/24v 170,000
Keye 5kva/48v 170,000
Keye 7.5kva/48v 350,000
Keye 10kva/48v 370,000
Fangpusun 80a MPPT @ 155k
EP Solar 12/24/36/48v 60a mppt(i tracer) solar charge controller @ 135k
EP Solar 12/24v 40a MPPT solar charge controller @ 65k
Trojan 12v 200a J200re USA flooded batteries @ 129k...(limited quantity in stock)
Trojan 12v 205a agm batteries ... 164k
Trojan 6v 315a agm battery.... 155k
Trojan 6v 375a agm battery .... Arriving soon
USA Deka 12v 210a .......190k
USA Mnspd 300 DC / AC ..... 50k
Schneider DC SPD ..........30k
AC/DC true RMS Clamp meters
UNI-T 203 ...N 20k
Suoer intelligent-automatic 30A 12V Battery Charger (MA-1230A) .... N 20k
DC display meters 0-30v...N 1600
DC display meters 0-120v..N 2200
ZHC Battery equalizer 12/24/36/48 volts..... 24k
Quanta Amaron 12v 200a vrla battery @ ...130k
Long 200a AGM batteries .... N120,000
Long 150a slim AGM battery..93,000
Long 100a AGM battery ........ 65,000
Long 100a carbon battery ..... 75,000
Superceed Batteries
12v 100ah= 40,000
12v 150ah= 60,000
12v 200ah= 80,000
Maximum power batteries
12v 100ah= 40,000
12v 150ah= 60,000
12v 200ah= 80,000
Double tech batteries
12v 100ah= 40,000
12v 150ah= 60,000
12v 200ah= 80,000
Network batteries
12v 110ah= 50,000
12v 180ah= 70,000
12v 210ah= 90,000
12v 250ah= 115,000
Flames 300w mono .... 47k
Watts meter "kill-a-watt meter" ....9k
Yachi solar panels ;
150w mono panels........@35k
260w mono panels.......@48k "limited stock"
310w mono panels........@59k "limited stock"
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Magnum 4348 USA inverter ....@900k
Victron multiplus 3kva 48v .....@600k
Schneider connect 2524..........@550k
Growatts SPF3000 plus hybrid/solar inverter...@290k
Growatts SPF 5000 hybrid/solar inverter... @320k
Canadian 340w mono solar panel"Korean cells" .... Offloading
Canadian 300w mono solar panel... 62,000
Canadian 330w mono solar panel.....@66,000 bulk price
Sunshine solar modules :
130w poly 23000
250w poly 39000
300w Mono 52,000
Quality chinese panels best price:
100w poly 18500
100w mono 19500
150w poly 23000
200w mono 33000
260w poly 35500
260w mono 39000
320w poly 45500

Mercury Industrial Stabilizer available now
10kva Single phase 100,000
15kva Single phase 157,000
20kva Single phase 195,000
30kva Single phase 300,000
15kva 3Phase in/out 195,000
30kva 3Phase in/out 320,000
50kva 3Phase in/out 830,000

Mercury Spirit Plus Hybrid Inverters are available now
2000 Spirit 2kva 120,000
2001 Spirit Plus 2kva 135,000
3001 Spirit Plus 3kva 165,000
5001 Spirit Plus 5kva 220,000
3kva Soho Inverter 185,000
5kva Soho Inverter 265,000
7.5kva Soho Inverter 300,000

BATTERIES
Mercury 1.2kva Inverter 40,000
Mercury 2.4kva Inverter 45,000
Mercury 200ah GEL battery 140,000
Mercury 200ah AGM battery 100,000
Mercury 100ah AGM battery 55,500

LUMINOUS BATTERIES:
Luminous 150AH/12V SMF .... 92k
Luminous 200AH/12V SMF .....115k
Luminous Blue 200AH/12V .....125k
Luminous tubular 220AH/12V..105k

LUMINOUS PURE SINEWAVE INVERTERS:
Luminous 850va/12v hybrid...52k
Luminous 875va/12v Eco.......37k
Luminous 1.5kva/24v Eco.......57k
Luminous 1.5kva/24v Zelio.....75k
Luminous 1.5kva/24v hybrid...80k
Luminous 3.5kva/48v Cruise..180k
Luminous 5kva/96v Cruise ....400k
Luminous 7.5kva/120v Cruise..500k
Luminous 10kva/180v ...........660k
Luminous 15kva/240v.............1m
Luminous 20kva/360v............ ----

BEST PRICES YOU CAN GET ON PRAG PRODUCTS !!!

Prag inverter 1kva 12v ......N65,000
Prag √√√√√ 1.2kva 12v....N70,000
Prag √√√√√ 2kva 24v.......N
Prag √√√√√ 1.5kva 24v....N98,000
Prag √√√√√ 2.5kva 24v....N112,000
Prag √√√√√ 1.5kva 24v....N96_000

Prag Solar inverter 1.5kva 24v....N120,000
Prag inverter 3kva 24v ....N145,000
Prag inverter 5kva 48v...N250,000
Prag inverter 7.5kva 120v ....N410,000
Prag inverter 10kva 180v....N480,000

Prag 4kva 24v wall H ......N245,000
Prag 6.5kva 48v wall H....N350,000


PRAG servo & relay stabilizers ;

-Prag 3kva relay B(95-280v)..N
-Prag 3kva relay E(95-280v)..N
-Prag 10kva servo ..N110,000
-Prag 10kva servo(130-250v)..N115,000
-Prag 12kva servo...N
-Prag 15kva relay(95-280v)...N110,000
-Prag 15kva servo(80-260v)..N220,000
-Prag 15kva servo(130-260v)..N190,000
-Prag 20kva servo (80-260v)..N310,000
-Prag 20kva servo(130-260v)...N230,000
-Prag 20kva relay Y..
-Prag 20kva servo(80-260v) ...N
-Prag 30kva servo(80-260v)...N400,000
-Prag 30kva servo(1300-260v)..N380,000

Protek 200L solar water heater... N215,000
With 30k , I can offer you a set of pro solar roof mounts to comfortably mount 4 units of 250 to 350w solar panel's including kits like ;
2 qty solar mount rail "4200mm" ,
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- Rail splice kit
- Grounding lug


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Hi guys,i will like to know what the right cable size will be for 12v,24v and 48v systems(cable connecting solar panel to CC and also connecting CC to battery)

mank1234:


Asides being a marketing strategy. I was thinking that the output in line mode would be a stable 220V regardless of the input since it's uses double conversion to maintain 0ms transfer time (converts ac to DC and back to ac). And if that was the case it would eliminate need for stabilizer. Am I wrong?

I don't think transfer rate will Eliminate Stabilizer, Stabilizer is required as long as you will be connected to grid.

I'm still wondering how transfer rate is 0ms

surrogatesng:
Hi guys,i will like to know what the right cable size will be for 12v,24v and 48v systems(cable connecting solar panel to CC and also connecting CC to battery)

This question is a random one..

First we need the Current, Voltage, to be transmitted and for what distances, between CC and batteries, Between CC and PV..

Current is the major factor anyways..

Dam5reey:


This question is a random one..

First we need the Current, Voltage, to be transmitted and for what distances, between CC and batteries, Between CC and PV..

Current is the major factor anyways..

The current is as follows.
12v 24 amps.
24v. 50 amps.
48v. 60 amps.

Lenght of cable will be 20 yards

Dam5reey:


I don't think transfer rate will Eliminate Stabilizer, Stabilizer is required as long as you will be connected to grid.

I'm still wondering how transfer rate is 0ms

I don't know if theirs work as I envisioned.
Step 1 (AC to DC conversion): grid power (170v to 280v) is converted to DC and smoothen to approx. 48vDC to charge the battery. The load is powered though the battery.
Step 2 (DC to AC conversion): the battery power is converted back to AC to power connected equipments.


When the battery is fully charged, net current flow to battery is approx zero even though the load appears to be powered from it. Thus, when grid fails the load is simply still being powered by the battery. The battery and the inverter share same DC bus.

It does appear to me that that is the architecture they use in the zero transfer time inverter. Otherwise it would be near impossible to achieve zero transfer time.

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mank1234:


I don't know if theirs work as I envisioned.
Step 1 (AC to DC conversion): grid power (170v to 280v) is converted to DC and smoothen to approx. 48vDC to charge the battery. The load is powered though the battery.
Step 2 (DC to AC conversion): the battery power is converted back to AC to power connected equipments.


When the battery is fully charged, net current flow to battery is approx zero even though the load appears to be powered from it. Thus, when grid fails the load is simply still being powered by the battery. The battery and the inverter share same DC bus.

It does appear to me that that is the architecture they use in the zero transfer time inverter. Otherwise it would be near impossible to achieve zero transfer time.

The MK can be paralleled and has lower Voc capability but lower efficiency ( 90% in Inverter mode)

The GK has higher efficiency (93%) and can also work without battery but higher SOC and no paralleling possible

Compliments of the Seasons to you and your Family.

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We are persuaded of better things concerning you in 2019 and We prayer that He will continue to bless you with more jobs, protect your engineers on the roof and enlarge your importation business much more in 2019.

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System Design and Installation.

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Happy New year

pranil:



The MK can be paralleled and has lower Voc capability but lower efficiency ( 90% in Inverter mode)

The GK has higher efficiency (93%) and can also work without battery but higher SOC and no paralleling possible

I'm settling for the MK. MPPSolar has confirmed by email that for online mode the output voltage is stable 220v - 240v but that for bypass mode the output follows the input.

If true, it means for input range of 110v-280v, one gets 220v eliminating the need for stabilizer.

For the bolded and based on your earlier comments, it appears to me that when the Grid is available the inverter will simply pass through the line voltage to the output e.g if PHCN line voltage is 180v then inverter output is also 180v, if PHCN cuts the power, the inverter sources power from batteries and output voltage goes back to 220v range.

This was my experience with the similar Zinox Axpert - line voltage from PHCN is not modulated but rather passed through straight to the inverter output.

Where did you plan to use a stabilizer? Was it between mains and inverter or between inverter and loads? I would still recommend a stabilizer or at least some voltage regulation between mains and inverter especially if your area is prone to line voltage fluctuations.

mank1234:


I'm settling for the MK. MPPSolar has confirmed by email that for online mode the output voltage is stable 220v - 240v but that for bypass mode the output follows the input.

If true, it means for input range of 110v-280v, one gets 220v eliminating the need for stabilizer.

mank1234:


I'm settling for the MK. MPPSolar has confirmed by email that for online mode the output voltage is stable 220v - 240v but that for bypass mode the output follows the input.

If true, it means for input range of 110v-280v, one gets 220v eliminating the need for stabilizer.

I like the features of the 3024GK it's just for home use so I don't need the line feature, I also already have a stabilizer between mains and inverter.
Where can one get this in Nigeria and price? and does anyone have usage experience of the 3024GK model?

Regards

Between mains and inverter.

NiyiOmoIyunade:
For the bolded and based on your earlier comments, it appears to me that when the Grid is available the inverter will simply pass through the line voltage to the output e.g if PHCN line voltage is 180v then inverter output is also 180v, if PHCN cuts the power, the inverter sources power from batteries and output voltage goes back to 220v range.

This was my experience with the similar Zinox Axpert - line voltage from PHCN is not modulated but rather passed through straight to the inverter output.

Where did you plan to use a stabilizer? Was it between mains and inverter or between inverter and loads? I would still recommend a stabilizer or at least some voltage regulation between mains and inverter especially if your area is prone to line voltage fluctuations.

ojeysky:


I like the features of the 3024GK it's just for home use so I don't need the line feature, I also already have a stabilizer between mains and inverter.
Where can one get this in Nigeria and price? and does anyone have usage experience of the 3024GK model?

Regards

Don't know if their brand is available in Nigeria. Thinking of getting from aliexpress

mank1234:
Between mains and inverter.

If this is the case, my brother, in Nigeria with phcn, you MUST use a stab. Otherwise, garbage in, garbage out. Secondly, your inverter will not charge the batteries if mains is lower than~170v.

mank1234:


Don't know if their brand is available in Nigeria. Thinking of getting from aliexpress

Hmm....do you have a cheaper shipping option? because the shipping cost on AliExpress isn't smiling at all :-)

ojeysky:


Hmm....do you have a cheaper shipping option? because the shipping cost on AliExpress isn't smiling at all :-)

Try chrisvicmall.com. I've not used them before but I'm considering using them

Please house I'm looking for a reliable Hybrid inverter 7.5kva 48v with at least 60amps Mppt.

The reason I'm going for hybrid is for ease of future expansion. I currently have a Victron Energy SCC 250/100 but just incase I need to do minimal expansion in future I may use the hybrid section of the inverter.

Someone suggested voltron brand 7.5kva, 48v with a 60a mppt charger but I just want to make sure it's a good brand.

mank1234:


Try chrisvicmall.com. I've not used them before but I'm considering using them

Seem to be more expensive than gig (but those only seem to do USA route), do keep us posted if you eventually get to use them

affordable fairly used 200ah batteries (preferably AGM) that is still in very good condition needed
ASAP. Contact email valto2020@yahoo.com or 08098350750

Good Morning Gurus. Happy new year to all of you and I wish you all a very successful 2019. I am looking for a recommendation on automatic changeovers. Who uses an automatic changeover and which brand or manufacturer do you recommend.
Thank you in advance

Chris,
I bought this one from Konga for N27k. No issues so far.

www.nairaland.com/attachments/6695126_decats203850x850copyjpg100286250x250_jpeg7eb0676872eef9f5e8070d4537d1a4a0
100A Automatic Changeover With Generator Start Function

chris81964:
Good Morning Gurus. Happy new year to all of you and I wish you all a very successful 2019. I am looking for a recommendation on automatic changeovers. Who uses an automatic changeover and which brand or manufacturer do you recommend.
Thank you in advance

Barezzi:
Chris,
I bought this one from Konga for N27k. No issues so far.

www.nairaland.com/attachments/6695126_decats203850x850copyjpg100286250x250_jpeg7eb0676872eef9f5e8070d4537d1a4a0
100A Automatic Changeover With Generator Start Function

Thank you. I saw it on Konga too. Not sure I need 100 amp. 32 amps would be more than enough our inverter will start and stop the gen. How long have you had it for? I appreciate you. Happy new year.

Since September last year. Does it's job quietly.
I'll send it to my parents, as i'll be upgrading my current setup soon and won't need it again.

Barezzi:
Chris,
I bought this one from Konga for N27k. No issues so far.

www.nairaland.com/attachments/6695126_decats203850x850copyjpg100286250x250_jpeg7eb0676872eef9f5e8070d4537d1a4a0
100A Automatic Changeover With Generator Start Function

Please how does it handle situations of low voltage or high voltage from the grid? Any protections?

Oga Chris,

I am assuming you want to switch over between Mains and Gen? If your inverter can already start and stop the Gen then I believe a suitably rated 4 pole 2NO/2NC AC contactor should do - you should be able to implement this solution for under 10k especially if your house wiring is single phase or 'naija looped 3-phase'.

Simply decide which power source has priority and put the live and neutral of that power source on the [NO] common side of the AC contactor and put the live and neutral of the power source to be overriden on the [NC] common side - interlink/bond the load side (goes to the house DB) of the AC contactor live to live bonded and neutral to neutral bonded and you are good to go. Only one power source will be able to feed from Common to Load Side of the AC contactor. You can even implement a Generator off function with the disconnect.

chris81964:


Thank you. I saw it on Konga too. Not sure I need 100 amp. 32 amps would be more than enough our inverter will start and stop the gen. How long have you had it for? I appreciate you. Happy new year.

DUNKA:
Please how does it handle situations of low voltage or high voltage from the grid? Any protections?

In my experience, if the switch is implemented with contactors, they do not like low voltage at all - anything below the minimum pickup voltage (~180v range), the coil pickup tends to chatter and the contactor coil is quickly destroyed.

Thinking back to what Oga Pranil once advised, perhaps one can mitigate this with an AC to DC converter using the DC signal to energise the coil instead. In my designs, I have been forced to dedicate a small stab or voltage protection device to the signal side of the coil where the end-user did not have a Stabilizer installed already.

earthrealm:
@ house..what is your harvest like this period as a ratio of your total panels...on a sunny day in the eainy season..i easily fot 4x to 5x my total panel capacity and instantenous harvest gets as higg as 80 to 100%

Now even with washed panels i average only 3x to 3.5x harvest.
A 2kw serup giving me 6kwh and a 3kw setup giving me 10kwh daily.with instantenous in peak sunlight around noon being 1.1kw and 1.5kw respectively

I think it has more ro do with rhe angle of the shn in the sky+haziness..than actual dust on the panels.
Curious to know your figures..if it tallies with mine.

Harmattan effect is quite noticeable on my system. Average Peak power went from 1.5kw in July - Oct to 1kw in Nov and 0.8kw in dec. Poor visibility and dusty panel did it for me. Interestingly It has not really affected my overall yield. Longer days non cloudy days has compensated for the low peak power. so my daily yield is still between 4.5 - 5kwh which is more than enough for my needs. Relative colder night also means less energy is used for climate control so my overnight draw has dropped from 70ah to 80AH to about 50 - 40ah.

chris81964:


Thank you. I saw it on Konga too. Not sure I need 100 amp. 32 amps would be more than enough our inverter will start and stop the gen. How long have you had it for? I appreciate you. Happy new year.

I have 63a, 100a and 250a with generator start