₦airaland Forum

NiyiOmoIyunade:
Ah boss! SPD is entirely useless and potentially even dangerous if there is no earth/ground to send the fault current to.

Putting a copper rod in the ground for protective earth is not an elaborate affair as such - anywhere in the compound from where you can run cable to your own flat/house is alright. We have used flower bed, just beside a ground floor window, just outside the compound beside a gutter, side of wall or fence.....

People just hammer the rod into the ground but this will only work with suitable soil - ideally you want to dig/auger a narrow hole like say 4 inches wide, put your copper rod in the center of the hole and backfill with suitable enhancement material - budget installs use industrial charcoal ground to a fine powder mixed with cement for a permanent earth. I would say 2 copper rods driven at least 16 feet apart is the minimum for safely channeling large surges from lightning e.t.c - if all you can do is one rod then it is better than nothing - just make sure it is the 8foot length type.

If all else fails, you can bond to a large metal body that is firmly connected to earth e.g the metal work frame that carries an overhead tank, car port or the water corporation metal pipe buried horizontally several meters length.

Half of my array is ground mounted sitting atop a large metallic frame embedded deep in the ground via 5 heavy duty concrete bases/legs - I did not bother to earth the frame the panels sit on as the entire assembly already has a firm connection to ground in Lekki saltwater soil.

mank1234:
Yes it takes care of both. But you need to know that there's also the possibility that it may fail due to a lot of reasons.
-improper installation
-end of life without you noticing it
-direct hit (the type village people may send to you)

Note that voltage surge is not same as over voltage. It won't protect you against over voltage.

Oshomo12:
Did you experienced a direct hit on the house by thunder? Cos there may be need to beg Thor!

mank1234:
1-You need DC btw panel and inverter
2-You need AC btw utility and inverter
3-You don't need btw inverter and house except if distance from 2 above to your equipment is more than 10m and if it's more than that you need a finer type like socket type.

Edit: the distance above is length of wiring.

Easylearner:
I'm not too sure... with good Earthing, is there any need for spd? and if there's need for spd... where will be the best place to install it - I'm thinking the spd will be for just the panel and charge controller.

NiyiOmoIyunade:
I am afraid your bad experience is very likely due to poor or inadequate earthing/lightning protection at your location - it is best if you fix this first before purchasing a new inverter as even a premium inverter would fail if it took a lightning hit.

You stated that the inverter was charging the battery from the mains during a heavy thunderstorm - lightning as you know hits power transmission lines pretty often and this could easily be carried through the line to your house equipment.

A suitable earthing system and LPS coupled with a SPD to take the hit/heat away from your inverter and household equipment is the way to go.


thanks house for the response and advice. infact I was surprised as I believed the general house have an earth, if it is enough is another issue but my neighbor's ipower plus inverter survived the hit.
as the whole compound is hard concrete and various water and waste pipes has been laid through various paths, I can have that permission to being to install earthing system.
please, what other ideal gadget can I improvise to prevent future occurence?
it is hard lesson to know that once it is cloudy, I disconnect all power.
I await various suggestions.
thank you

Predator188:
mix movie channel
nilesat 201 _11785 v 27500

chiboyjohn:
Xtra cinema station always show hard core porn every night from 12 midnight till 6 morning,, ,
Yesterday they almost killed person for here ,lol

sauceEEP:
Can I attach 32°e to a set up with 26°e as primary? If it's possible how can it be done, also what would be the lnb skew?

davosea:
yes thnks after many effort i was able to install media7 mbc and multi tv and cnn

essegis:
Looks like you have a select few you actually wanted to answer your question. My own is you for don direct am straight to them instead of asking the house. Enjoy.

gmaribel:
I personally have used this and found it very effective.

ceaser:
I believe in this link is the inverter you talk about.

https://www.nairaland.com/390522/solar-energy-complement-fta/726#88936520

It charges well when NEPA provides good voltage and charges poorly at low current. If that's the inverter you use, then that implies you have an external charge controller for your solar charging option.

80% DoD is rather pushing it too much. That inverter has selectable switch for 50% and 80% DoD. I suggest you select the 50% in order to ease the usage stress on your batteries.

That being said, you did not mention your solar panel capacity nor give any info on your charge controllers so that people can "audio audit" if it is adequately sized to charge your 200ah 12v batteries.

You will need a clamp meter to measure the current going thru the wires from your solar panel, or through any wires for that matter.

ceaser:
I believe in this link is the inverter you talk about.

https://www.nairaland.com/390522/solar-energy-complement-fta/726#88936520

It charges well when NEPA provides good voltage and charges poorly at low current. If that's the inverter you use, then that implies you have an external charge controller for your solar charging option.

80% DoD is rather pushing it too much. That inverter has selectable switch for 50% and 80% DoD. I suggest you select the 50% in order to ease the usage stress on your batteries.

That being said, you did not mention your solar panel capacity nor give any info on your charge controllers so that people can "audio audit" if it is adequately sized to charge your 200ah 12v batteries.

You will need a clamp meter to measure the current going thru the wires from your solar panel, or through any wires for that matter.

Namzy:
Looks like pwm

kiekie1:
Hello, there are solar charge controllers with user friendly lcd/display in pwm & mppt specs .. Nevertheless, before your gbm battery packs up >> sum up your solar panel array to 600w "factoring losses~inefficiency" ceteris paribus ! Cheer's

incogni2o:
1. What's the wattage of your solar panel(s).


2. Check your solar controller , you'll see the amperage.
.snap it when the sun is high, also when the sun is low.

3. Are the silar panels well exposed.

4. when did you get the batteries, did you get them new?

5. It could be dependent on yout type of connections, in series or parrallel(both the batteries and the solar panels )

Those details are needed to further diagnose the issue

Valto:
lolz , bumper to bumper adverts . kiekie1 vs callmenuel na express una dey oo