Setup of UPS + Solar panels


#341

[quote=“forum, post:340, topic:20952”]

I am planning a similar setup.

Can someone please confirm if it is correct?

Where can I add switch that switches from wapda to solar and vice versa for charging.

2ppn7fk.png

[/quote]

@Forum, That is correct. I am using the exact circuit with a different ups. How much PV watts (panels) are you planning to install and what appliances do you want to run on this?


#342

[quote=“forum, post:340, topic:20952”]

Where can I add switch that switches from wapda to solar and vice versa for charging.

[/quote]

Can anyone help on this? I am also looking for a similar automatic switch.


#343

[quote=“Saif080, post:341, topic:20952”]

@Forum, That is correct. I am using the exact circuit with a different ups. How much PV watts (panels) are you planning to install and what appliances do you want to run on this?

[/quote]

I am planning 400-500 watts.

My usage is 2-3 fans. 1-2 laptops , 1 tv occasionally and 2-3 lights. Fans increase to 4-5 at night.


#344

dear whatever the benefit you will get from solar, it is sure your desi ups is gonna screw everything up. but to answer your question, yes the solar charger should keep batteries on a level.

can you share with us the model numbers of the equipment you have then you will get more precise info.


#345

[quote=“tufail_74, post:344, topic:20952”]

dear whatever the benefit you will get from solar, it is sure your desi ups is gonna screw everything up. but to answer your question, yes the solar charger should keep batteries on a level.

can you share with us the model numbers of the equipment you have then you will get more precise info.

[/quote]

Thanks for your valueable info. how the desi ups screw everything. please explain.

i don't know the model number of panels. model number of charge controller is LandStar LS1524. battery is flooded AGS 200AH

Thanks


#346

There is basically no charging curve for desi ups so it heats up battery and mostly over charges it hence the life time is reduced. while solar chargers usually have 3-step charging curve and good ones have 4-step charging curves including, bulk, absorb, float and equilization. This gives battery more life and keep battery withing safe limites.


#347

the guy who sold the ups, told me that it has 3 step charging kit.


#348

if it is desi i doubt it has. usually they go up a voltage level and then stop charging. normal UPS does not keep battery on float.


#349

[quote=“khuram89, post:, topic:”]

Hello everybody,

Hope everybody is fine.

i would like to know, does my setup over charging my battery. here is the setup

200watt solar panel => charge controller => 200AH battery <= 1200va desi ups

now my question is when battery is full ups stops charging it, on the other side does solar panels keeps on chaging my battery. will it ruin the battery or charge controller stops charging when the battery is full.

reply awaited

thanks

[/quote]

If you only have one panel, of 200W only, i highly doubt you would get anything above 3-4amps at peak.. so you have nothing to worry about your battery overcharging...unless you wrote your information wrong.

you should add atleast one more panel to your setup.

your AGS battery should get charged at an average rate of 10-15 amps.. since your panel would be providing a lot less, so chances of your battery being undercharged are a lot more than being over charged..

the charger of UPS is waaayy inferior to the landstar charger, and indeed the charging of the landstar will keep your battery in fit great condition as long as it receives enough power from sun..Landstar are good enough CC for majority small setup/

do you have a switch in between the ups and battery which shifts charging between wapda and solar? and most importantly, what is your load on your ups.?


#350

[quote=“farhan_ds, post:349, topic:20952”]

If you only have one panel, of 200W only, i highly doubt you would get anything above 3-4amps at peak.. so you have nothing to worry about your battery overcharging...unless you wrote your information wrong.

you should add atleast one more panel to your setup.

your AGS battery should get charged at an average rate of 10-15 amps.. since your panel would be providing a lot less, so chances of your battery being undercharged are a lot more than being over charged..

the charger of UPS is waaayy inferior to the landstar charger, and indeed the charging of the landstar will keep your battery in fit great condition as long as it receives enough power from sun..Landstar are good enough CC for majority small setup/

do you have a switch in between the ups and battery which shifts charging between wapda and solar? and most importantly, what is your load on your ups.?

[/quote]

Thanks farhan.

theres no switch in between the ups and battery which shifts charging between wapda and solar. what type of switch is this? should i install it? is it necessary? benefit of it?

the total load is 10 x 23w energy savers and 2 fans. sometimes i switch on the tv also.


#351

do you only have one panel?


#352

I have 2. Dont kniw whether these are of 100 or 200watts


#353

post pics of your current setup so all of us can understand your current situation..


#354

I'll post 2mmorrow

Sent from my HTC Desire 600 dual sim using Tapatalk


#355

here is the setup

2 panels

1200watt desi ups

200Ah AGS Battery (GX200F) 27 PLATES

charge controller (LandStar LS1524)


#356

Holy krap..

You seriously need to change your wiring.. it is a very big hazard.. all wiring is very cheap, boards are loose, buttons are low amps, and cabling is low end..no color coding, no thimbles, and it probably isnt a proper DC cable i think..

your Panels are fine.. your CC is good enough for your needs, and it wont ever overcharge your batteries as you wont be getting enough amps to charge it anyways.. probaly 6-7 amps max from your panels, and it is much less than what your battery requires

the real issue is your UPS.. unless it has intelligent charging circuit which i highly doubt from the looks of it, the advantage of quality charging from your CC will result in lower charging from it since it senses the extra volts your UPS is using to charge the battery..

donot change anything, when you will upgrade your battery and ups in future, make sure to spend 30-40 k on it for one time expense, and then enjoy the benefits of free solar power.. in the mean ttime, FGS, improve your electrical system or you will get shocked.. its a big risk..


#357

Thanks farhan for valuebale info.

I can send u my kit picture also.

i couldn't understand it, please explain "the advantage of quality charging from your CC will result in lower charging from it since it senses the extra volts your UPS is using to charge the battery."

thanks again buddy


#358

Desi ups will force maximum charging to battery.. the CC will sense that extra current is already coming to battery and will reduce its own charging to prevent overcharging.. Desi ups doesnot do that and will continue its own charging,, thus advantages of quality charging from CC will be wasted..


#359

so the bottom line is desi ups will ruin my battery :(


#360

insha Allah <_<