kiekie1:
WATCH THIS SPACE FOR BEST PRICES YOU CAN GET ON PRAG PRODUCTS . STAY TUNED !!!

Prag inverter 1kva 12v ......N65,000
Prag √√√√√ 1.2kva 12v....N70,000
Prag √√√√√ 2kva 24v.......N88,000
Prag √√√√√ 1.5kva 24v....N98,000

Prag Solar inverter 1.5kva 24v....N125,000
Prag inverter 3kva 24v ....N
Prag solar inverter 3kva 24v...N
Prag inverter 5kva 48v ....

Prag 4kva 24v wall H ......N225,000
Prag 6.5kva 48v wall H....

PRAG servo & relay stabilizers ;

-Prag 3kva relay B(95-280v)..N
-Prag 3kva relay E(95-280v)..N
-Prag 10kva servo ..N103,000
-Prag 12kva servo...N
-Prag 15kva relay(95-280v)...N110,000
-Prag 15kva(45-280v)..N125,000
-Prag 20kva relay (95-280v)..N145,000
-Prag 20kva relay(45-280v)PB...N
-Prag 20kva relay Y..N130,000
-Prag 20kva servo(80-260v) ...N
-Prag 30kva servo(80-260v)...N

For fast order,delivery
Contact details:
Sir Frankie
Smartcell global services
081-350-319-51

Notify us when stock is available for Prag 2kva

In my book 1HorsePower is 746watts so your 1.5HP pump consumes about 1.5 * 745watts ~1,119watts per hour so in 1 hour your pump would have consumed 1.119KwH.

At first glance it would appear your 4.8KwH battery store would do this load with plenty to spare but then your discharge rate is about C4 and your battery bank is likely a C20 rated battery meaning the battery bank is being discharged far more aggressively than it was designed for and may therefore die an early death..


Remember inside the batteries it is a chemical reaction that generates DC electricity so the gentler the better.

earthrealm:
so just doing some mental maths, and its appearing too good, thus am asking some1 else to xchk.

2 x 12v x 200ah batt fully charged, hooked up to a 4kva 24v mustpower inverter, theoritical energy availabe is 4800wh, taking out losses etc, we have 4000wh, the user has a 1.5hp sumo pump and a single 5k liters tank wch takes 45 to 60mins to get filled, so from my calc. to run the sumo pump for 1hr will gulp roughly 1500wh?.....thus the batt would still hv a little juice above the 50% dod mark?

Please take a look at what a 1.5HP was drawing. 1.4Kw. Any explanation for the difference compared to your calculation?

NiyiOmoIyunade:
In my book 1HorsePower is 745watts so your 1.5HP pump consumes about 1.5 * 745watts ~1,118watts per hour so in 1 hour your pump would have consumed 1.118KwH.

At first glance it would appear your 4.8KwH battery store would do this load with plenty to spare but then your discharge rate is about C4 and your battery bank is likely a C20 rated battery meaning the battery bank is being discharged far more aggressively than it was designed for and may therefore die an early death..


Remember inside the batteries it is a chemical reaction that generates DC electricity so the gentler the better.

SolnergyPower:
Please take a look at what a 1.5HP was drawing. 1.4Kw. Any explanation for the difference compared to your calculation?

Solnergypower,

Yes , you may be right . Makavele once said that "theory is theory whilst practical is practical".. 1hp split AC consumes approximately 800-850w on the cyberpower display screen below ; I will come up with 1.5hp consumption soon at my free time ! Cheer's

Good morning great forumites .. Hope you all slept well under a solarized atmosphere ? Wishing you all a blessed<>fruitful day ahead , AMEN !

The design and real life efficiency of the pump motor Sir.

1hp is 746 watts but most motors will not achieve their theoretical efficiency in real life - age of pump, worn/rusty bearings and brushes, shorts and kinks in the coil windings, blockage or flow restrictions in the water pipe e.t.c may also be playing a part.

This is why I always look at the name plate specs then take a watt meter or amps measurement to measure the actual power draw for all equipment. I really hate to guess because expectations and real life often do not align.

SolnergyPower:
Please take a look at what a 1.5HP was drawing. 1.4Kw. Any explanation for the difference compared to your calculation?

earthrealm:
so just doing some mental maths, and its appearing too good, thus am asking some1 else to xchk.

2 x 12v x 200ah batt fully charged, hooked up to a 4kva 24v mustpower inverter, theoritical energy availabe is 4800wh, taking out losses etc, we have 4000wh, the user has a 1.5hp sumo pump and a single 5k liters tank wch takes 45 to 60mins to get filled, so from my calc. to run the sumo pump for 1hr will gulp roughly 1500wh?.....thus the batt would still hv a little juice above the 50% dod mark?

With @Niyis' 745w, let me round it up to 1200w draw. This is about C4(50A) draw, using peukert number of 1.1( which is about the least). Ur 200ah capacity will drop to around 135.25ah!(this will be ur new battery capacity not 200ah). So pls re-do the math and see what u have.

Note: u will still be above 50% dod, but that battery will die faster(~4times) than the one discharge with C20(which is d manufacturers' recommend).

Q.E.D!!!

Oshomo12:


With @Niyis' 745w, let me round it up to 1200w draw. This is about C4(50A) draw, using peukert number of 1.1( which is about the least). Ur 200ah capacity will drop to around 135.25ah!(this will be ur new battery capacity not 200ah). So pls re-do the math and see what u have.

Note: u will still be above 50% dod, but that battery will die faster(~4times) than the one discharge with C20(which is d manufacturers' recommend).

YEAH, THANKS @ALL, NIYI AND OSHOMO, i knew something was off, the calculation was just too good to be true, i forgot about discharge amps.
the problems of excessive battery drain may be countered by running the sumo during times of good sunlight, so the solar panels might be bringinging in more than 70% of the consumption, with the battery making up the rest..and thus still follow the c20 rule?

makavele:


He Mentioned 1000VA and about 800VA or so; . . which would struggle like hell. I was in that shoe before. Unless the appliances have been ice-cold from PHCN the previous night, the inverter would never start any of them. Someone even mentioned a trick here; starting the freezer with a generator then switching over to inverter . . . which worked 50/50 for me

Negative, should have stopped at struggle to start. My first inverter was a 1050va (about 840w) and yes it did struggle to start the freeze but it did start it and once started the freezer ran fine. The freezer is a 175L chest mode from LG.

Freezers should generally be given some time when turned off.. (like 5 minute) before turning them back on.. this would allow the compressor to reset (you will hear a click sound when this happens) doing this reduces the start up surge.

I eventually replaced the inverter with a 1.5va (1300w) inverter and the latter started with freezer with no hassle at all. But Inverters are from sukam

earthrealm:
YEAH, THANKS @ALL, NIYI AND OSHOMO, i knew something was off, the calculation was just too good to be true, i forgot about discharge amps.
the problems of excessive battery drain may be countered by running the sumo during times of good sunlight, so the solar panels might be bringinging in more than 70% of the consumption, with the battery making up the rest..and thus still follow the c20 rule?

Yes, if ur solar can give u 45a at the time of pumping, the remaining 5a will be sourced from d batteries.

NiyiOmoIyunade:
Please I need a contact for solar water heater
(100 to 200Litres) capacity for a building project. The Protek guy I found had only 300L tank capacities
available.

Appreciate any help from the honorable members of the house

it seems you may be in luck after all.
check out the konga link below and see if what they have matches your expectation:

https:///non-pressurized-solar-hot-water-heater-2523935

gen2ty:
House,
Kindly assist in appreciating team Zeestone for the successful completion of my 6000kW capacity solar system project. The level of professionalism and trust exhibited was unprecedented from the purchase of all the material, transportation and installation. Thanks for the good commendations from the guys here especially GeorgeD and Niyi who gave me a high level of comfort to stake with them. Gracias!

@gen2ty

Welcome to the club!! But appreciation is incomplete until you give us a peek into your setup. It is the unwritten tradition of this forum so that others can benefit from it. So, kindly share pictures of your setup with us asap. Zeestone over to you. Send pictures am sure you took some.

My system and yield. I am a DIY person with multiple solar installations for personal use. This is a 24v setup with Prag 2.5kva inverter, 4 Monbat 200amp batteries, 60 amp EP Solar CC and 6 solarworld 255W mono panels. Good yield for a 1.53kw setup. Location Ogbomoso.

babaegun:


@gen2ty

Welcome to the club!! But appreciation is incomplete until you give us a peek into your setup. It is the unwritten tradition of this forum so that others can benefit from it. So, kindly share pictures of your setup with us asap. Zeestone over to you. Send pictures am sure you took some.

Will post pictures, House tradition tins

Pix nt uploading, ll try again later at night

durodee:
My system and yield. I am a DIY person with multiple solar installations for personal use. This is a 24v setup with Prag 2.5kva inverter, 4 Monbat 200amp batteries, 60 amp EP Solar CC and 6 solarworld 255W mono panels. Good yield for a 1.53kw setup. Location Ogbomoso.

6.3KwH harvest from a 1.53kw array is quite impressive. That is an efficiency of 4.12KwH/Kw.

dapsyra:


6.3KwH harvest from a 1.53kw array is quite impressive. That is an efficiency of 4.12KwH/Kw.

Seems to have been having some clear skies nowadays: the system was generating 25amps even before 9 am in the morning!

Pix

^^ I hope you have his permission to post pictures . . . *privacy issues*

@zeestone99 & Gen2ty

Sweet!! Very very Sweet! Love the car port solar panel stand. Its the way to go if there is money and space.


Solar Panel = 300W x 20 right?
How many batteries?
is that Ipower Inverter?

kiekie1:


Solnergypower,

Yes , you may be right . Makavele once said that "theory is theory whilst practical is practical".. 1hp split AC consumes approximately 800-850w on the cyberpower display screen below ; I will come up with 1.5hp consumption soon at my free time ! Cheer's

That is an efficient air conditioning unit you have right there.

Is it an inverter type air conditioner Please what is the continuous and surge power ratings of your cyberpower inverter

babaegun:
@zeestone99 & Gen2ty

Sweet!! Very very Sweet! Love the car port solar panel stand. Its the way to go if there is money and space.


Solar Panel = 300W x 20 right?
How many batteries?
is that Ipower Inverter?

Thnks sir
Panel is 300watt × 20
12 quanta Ba3s
Gennex inverter

pranil:
Peeps

Latest News from Tapeta street Home Project

A more machanically talented guy from my office helped me install ( actually he did the install I just watched � ) over two days this weekend the first wind turbine

I was also in parallel installing the BYD LIfepo4 batteries – 10 KWh 48 V

See video for turbine in operation -
https://www.youtube.com/watch?v=mI84Xa_9LA4

It is a cheap Chinese make horizontal axis wind Turbine rated 200 Watt /24 V DC connected to the drivers /maids room through an off grid setup of 3 KWH . It is also augmented by 800 watt of Solar PV
Cut in Speed 2 m/s - rated 11 m/s - Installation location - 9.078 7.482 , 492 m+ 14 meters
weather history - https://www.wunderground.com/personal-weather-station/dashboard?ID=IABUJA3#history/tgraphs/s20171106/e20171106/mdaily

I have also on order a Vertical Axis 300 Watt wind turbine to compare. Will be installed next year

Now I have Four different RE models running in the same house


1. Pure Offgrid – 24 V DC Solar PV+ Wind – AGM batteries – 3KWH. 0.8 Kwp Solar
2. DC coupled Hybrid – Grid + Solar PV + Diesel, 48 V Flooded lead acid , 20 KWh( 10 KVA peak) – 2.5 Kwp solar
3. AC coupled Grid Tie ( normally running in islanding mode daytime) - Solar PV +Diesel Hybrid + Micro Grid inverter ,Lithium batteries – 10 KWh ( 5 KW peak) , 48 V DC – 3 Kwp Solar
4. Solar thermal – 120 Litters EV tube water heater with PV Solar assisted 1.5 Kwp heater and 100 watt water boost pressure pump


detailed specs – Horizontal axis

Model FT- 200S
Generator type 3 phase rare earth Permanent Magnet Generator
Rated power 200W
Maximum Power 230W
Rated voltage 12/24V
Generator net weight 12Lb
Service life 20-25years
blades Nylon fiber
Number of blades 3 or 5
Wheel diameter 1.3m
Rated rotor speed 400r / m
Start-up wind speed 2.0m / s
Rated wind speed 11.0m / s
Survival wind speed 60m / s
Regulating way Electronic magnet/yaw
Lubricating grease

Sir, whats the performance of your wind turbines? I am thinking in that direction and would really appreciate your input.

NoMoreTrolling:


That is an efficient air conditioning unit you have right there.

Is it an inverter type air conditioner Please what is the continuous and surge power ratings of your cyberpower inverter

NoMoreTrolling,
Thanks ! Its an LVT 1hp & 1.5hp split AC .. The 3.5kva cyberpower is a 2500w inverter (×3 surge) .. Its not really in stock again! Cheer's

That cyberpower is an ancient relic of a long gone era!

But by jove it is rugged - if I remember KieKie you told me you use it for water pump and AC correct?

kiekie1:


NoMoreTrolling,
Thanks ! Its an LVT 1hp & 1.5hp split AC .. The 3.5kva cyberpower is a 2500w inverter (×3 surge) .. Its not really in stock again! Cheer's

Many thanks Sir

GeorgeD1:


it seems you may be in luck after all.
check out the konga link below and see if what they have matches your expectation:

https:///non-pressurized-solar-hot-water-heater-2523935

NiyiOmoIyunade:
That cyberpower s an ancient relic of a long gone era!

But by jove it is rugged - if I remember KieKie you told me you use it for water pump and AC correct?

Yes it powers my tough load without stress . it has solid copper transformer and components which I can attest to ! Its transformer is as rugged as the 6kw power star you recently acquired k ... We power bigger loads(1hp submersible pump,steam iron,hair dryer,microwave, 1hp & 1.5hp split AC ) one at a time with mine and no issues for the past 8 years . The only serious maintenance I seldomly do, is just to blow off accumulated dust in system and also change any worn out cooling fan to avoid high temperature alarm . Cheer's

durodee:
My system and yield. I am a DIY person with multiple solar installations for personal use. This is a 24v setup with Prag 2.5kva inverter, 4 Monbat 200amp batteries, 60 amp EP Solar CC and 6 solarworld 255W mono panels. Good yield for a 1.53kw setup. Location Ogbomoso.

Durodee,
Sir,Nice yield you got there .We run same 24v system and similar PV array tho! I intentionally drained my battery bank to 23v last night as its been long I went below 24.6v , here is my yield for today in snapshot below ..
NOTE: last pic was snapped by 7:10pm !

kiekie1:


Durodee,
Sir,Nice yield you got there .We run same 24v system and similar PV array tho! I intentionally drained my battery bank to 23v last night as its been long I went below 24.6v , here is my yield for today in snapshot below ..
NOTE: last pic was snapped by 7:10pm !

wow nice!.. is urs 1.5kw or 1.8kw panel?, i suspect 1.8kw, cos i hv 1.5kw and the max i hv ever gotten is 7.2kwh

earthrealm:


wow nice!.. is urs 1.5kw or 1.8kw panel?, i suspect 1.8kw, cos i hv 1.5kw and the max i hv ever gotten is 7.2kwh

Hmmn quit suspecting as I get above that figure displayed today most days when I drain my 14400wh battery bank a bit before dawn .. I have posted about my ground mounted PV array in the past. My 60a mppt has been operating at peak(1600w at 24v) for years as my batteries float daily before dusk"observing 50-70% DOD rules" ! I can't remember when last I turned on the 7.5kva gen even on rainy days

These are great results KieKie

The question you seem to be so cleverly dodging is what is the exact size of your PV array that is very similar to @Durodee's? 1.5kw? or 1.6kw? or 1.8kw? or 2.4kw? that routinely generates 8.9kwh daily yield ?

If you have a 1.53kw array like @Durodee then we are looking at a superlative 6times PV array size daily yield which is superior even to the best known routine results from high sun intensity and long solar days areas like Australia.

I am asking you to tell us the exact size of your PV array not to throw shade but rather so we can put the yield results in perspective and any newbies can set realistic expectations.

If you are daily generating 6 times your array size on a regular basis then we all need to come learn at your feet and pick up pro tips and tricks to use in our own installs

kiekie1:


Durodee,
Sir,Nice yield you got there .We run same 24v system and similar PV array tho! I intentionally drained my battery bank to 23v last night as its been long I went below 24.6v , here is my yield for today in snapshot below ..
NOTE: last pic was snapped by 7:10pm !

kiekie1:


Hmmn quit suspecting as I get above that figure displayed today most days when I drain my 14400wh battery bank a bit before dawn .. I have posted about my ground mounted PV array in the past. My 60a mppt has been operating at peak(1600w at 24v) for years as my batteries float daily before dusk"observing 50-70% DOD rules" ! I can't remember when last I turned on the 7.5kva gen even on rainy days