₦airaland Forum

earthrealm:
whats the consumption of your gate in watts?.
incase you cant tell simply buy 2 or 3 100w x 12v panels, and a 30amp pwm charge controller, or a single 250w or 300w panel and a 20amps or 30amps mppt charge controller. any of the above should fully charge a 100ah battery daily

earthrealm:
Thanks earthrealm, I would go with the single 250 or 300watt.
But i have this spare esmart3 60amps MPPT (12v/24/36/48v) which i plan to use it with. I just hope its not too much for it

whats the consumption of your gate in watts?.
incase you cant tell simply buy 2 or 3 100w x 12v panels, and a 30amp pwm charge controller, or a single 250w or 300w panel and a 20amps or 30amps mppt charge controller. any of the above should fully charge a 100ah battery daily

mikylon:
Happy new month to us all.
I need some guidance on sizing of solar panel.
I have a 1kva inverter and a 12v 100ah gel battery which i use to power my outdoor sliding gate machine.
Due to poor power supply to charge the inverter , i want to incorporate a solar panel to charge this battery.
What size of panel should i go for that can convienently charge this battery?

Saipro:
It would appear your controller might be working fine. My spot diagnosis is, your controller is a PWM type. If you have small cable gauges, long distance between CC and panels, CC heating excessively (leading to derating), inappropriate positive grounding or any combination of the above mentioned, you could have problems like what you're currently experiencing.

Next likely culprit is bad panels in the strings.
My recommendations
- first check controller type
- check string currents with a clamp device. If okay, your CC is a PWM regardless of what the sticker states.
Minimize distance between PV panels & CC
- someone posted a chart showing amp
acities and cable gauges. There's another for cable gauges with respect to distance and current. Review both.

Easy way out - call an expert. Lots of them here with numbers in their signature

earthrealm:
i think you are a lil confused, the installer must have used 6mm for positive, then 6mm for negative
THE chart shows you need 16mm at 3% loss, i would advice you to split your panels into 2 sets of 6 panels each 3s2p, used a 10mm dual armoured cable to run each string, and used a combiner box or properly sized circuit breakers to marry/terminate both strings.
zeestone and kiekie have such cables in stock...
http://www.solar-wind.co.uk/cable-sizing-DC-cables.html


finally at this stage, it should be obvious to you that your installer doesnt have a clue of what he is doing, get an installer from this forum to go qaqc ur setup and modify it accordingly, zeestone /frankie/ niyi etc are ever ready

hardywaltz:
There's something wrong with your installation
If u are getting 120v and 8.5amps from ur panels means that at least 2 strings of panels are not connected properly.

3 panels of 300w connected in series will give u about
120v and 8.5amps

3S4P panels should be giving u 120v (8.5x4)amps ië 120v 38amps.
Kindly note these are simplified calculations actual may vary.

My advise is to do a string by string test and u will definitely find out the faulty strings.

Secondly increase the size of Ur cable from Combiner box (Or solar panels) to Charge controller.

6mm2 (AWG 9) wire is grossly inadequate for 25m run.

Use the following link to calculate voltage drop

https://www.rapidtables.com/calc/wire/voltage-drop-calculator.html

earthrealm:
whats the distances in ft or meters
1. panel to CC
2. CC TO Battery

the deka , is an unfamiliar make, is it the same company as deka battery usa??

earthrealm:
First off...i guess you meant 3s4p...the 3p4s u wrote above..will damage most charge controllers whose Voc is capped at 150v.
Do confirm that.
2ndly confirm the make and type of charge controller you have
3rdly..confirm cable size from panels to cc and cc to battery ....
4th..long shot maybe that your connection has disconnected on the panels..i would suggest boots on the ground...ie let a pro from the forum go and qaqc your setup

emmasoft:
It pays to do both because you could have an emergency for cash. MMF allows withdrawal without penalty after 30 days but TB must wait till maturity

MrsNwaAmaikpe:
After using all the bleaching creams in this world to bleach her DNA.......see her end now mtchewwwwwwwwwww



Let a pathologist carry out autopsy on her now and they will realize she died of too much mercury in her system.

honmusa:
You car is pinging /detonation .Pinging is due to uneven combustion of air fuel mixture and resulting to spontaneous explosion which is the engine grinding noice u are getting.
Resolve the mixture issue and the grinding noice will go away !!

junnyjake:
I seem not to agree with you.

he wasn't impressive during the battles. Was looking out for something above his stellar performance at the blinds.

obakore20:
Precious has the best pitch note on the show, there was no how Grace could stand that. It was just unfortunate that Grace was not stole by any of the other celebrities and as for Mama Africa she is just being very partial which i think the organisers of the Voice Nigeria should call her to order or better still terminate her contract if she refuses to change.