tabithababy:
. Hello, I have been banned in the investment section, that is why am quoting you here,concerning the capital of news, please have you been able to withdraw, is it real , do they really pay. Thanks

no idea

kogistar:
no idea

. How ? Were you not the one that posted a link to capital of news in investment section.

GeorgeD1:
dunka,
mine would be mounted on a separate tower besides the main water tank.
i consider a 300 litre weight of water too much of a risk to put on my roof.
if my roof were made of concrete like johnkester's probably i wouldn't mind
at all. but for those installing the 200 litre or 100 litre version i'm sure they
would be light enough to fit onto an aluminum roof.

Great. Anxiously awaiting the pictures of the install

SUKAM 1.4KVA FOR SALE: 1.4kva sukam. 1yr 5month used. for sale due to upgrade. call 08033735359 now

DUNKA:
what are the cost of the batteries?

Hi DUNKA , they go for 105,000

Super yes! its the surest way to damage ur CC. Infact never install a breaker between the CC and battery cos any inadvertent trip fries your CC . Happened to a friend recently.

mank1234:
A friend's morningstar ts-mppt-60 solar controller got damaged. He suppects that the damage might have been caused by accidental disconnection of battery power to the CC before the disconnection of the solar input.

His solar setup Voc is around 90V and his battery bank is 24V. Does a disconnect of battery before disconnecting solar damage morningstar mppt charge controller?

.

xij38580:
Hi guys ,

I have two 200w Csun solar panels i bought some couple of months back. I never got to use them thanks to the hike in the price of batteries and others. I would like to sell them off in order to buy batteries. Am putting them out at 55k

Mono or poly?
Ur contact n location

pls I need some practical advise on how to protect one's system from the effects of lightning I heard it can destroy everything within few seconds.

DMerciful:
Super yes! its the surest way to damage ur CC. Infact never install a breaker between the CC and battery cos any inadvertent trip fries your CC . Happened to a friend recently.

Hmm ...

Saipro:


Hmm ...

Double Hmmnnn......

You beat me to it!

saipro & battleaxe,
you guys could just correct the error without humming and humming.
i'm sure dmerciful doesn't realize his mistake and seems it really is a honest one.
afterall, we all learn everyday.

Thanks for looking out for me....but i will like to the error I made

GeorgeD1:
saipro & battleaxe,
you guys could just correct the error without humming and humming.
i'm sure dmerciful doesn't realize his mistake and seems it really is a honest one.
afterall, we all learn everyday.

kiekie1:


It's OK once you can go tru that stress . its jst short term management to me. Just did an overhaul of less than 1 yr old NEXUS 200a batteries & found out 1 outta 4 was faulty , I decided to sell the tested OK ones for 50k each ...HOLLA !!!

SOLD !

Sword

DMerciful:
Super yes! its the surest way to damage ur CC. Infact never install a breaker between the CC and battery cos any inadvertent trip fries your CC . Happened to a friend recently.

a big thanks. I have bypass mppt manual and removed breaker.
good lesson.

sorry to mppt loose.

1. SUKAM 1.4KVA FOR SALE: 1.4kva sukam. 1yr 5month used. for sale due to upgrade.
2. solar charge controller (new). 12/24v 30amp. call 08033735359 now

@Dmerciful,
Apologies for the Hmmnning.

I have read a few manuals and I have never come across a manufacturer advice not to install any electrical protection between CC and battery. On the contrary, all of them recommended this.

Secondly, while electrical protection offers you the added protection for your equipment in case of faults, it primarily also should be to protect you against fires resulting from overheating of your cables.

I would think that whatever fault you have downstream of your CC (I.e. Between your CC and battery) which causes your breaker to trip, is such that if you did not have that breaker there, would have wrecked further damage upstream to your CC and above.

I would rather have a tripped breaker with possible minor damage to CC electronic circuitry, than to have significant upstream damage or fire.

I'm open to rebuttals on the above!

The inadvertent trip I meant is if someone or you mistakenly trip it during the day then its similar to installing ur solar panels first to ur CC before installing ur batteries n the CC will positively fail.

battleaxe:
@Dmerciful,
Apologies for the Hmmnning.

I have read a few manuals and I have never come across a manufacturer advice not to install any electrical protection between CC and battery. On the contrary, all of them recommended this.

Secondly, while electrical protection offers you the added protection for your equipment in case of faults, it primarily also should be to protect you against fires resulting from overheating of your cables.

I would think that whatever fault you have downstream of your CC (I.e. Between your CC and battery) which causes your breaker to trip, is such that if you did not have that breaker there, would have wrecked further damage upstream to your CC and above.

I would rather have a tripped breaker with possible minor damage to CC electronic circuitry, than to have significant upstream damage or fire.

I'm open to rebuttals on the above!

DMerciful:
The inadvertent trip I meant is if someone or you mistakenly trip it during the day then its similar to installing ur solar panels first to ur CC before installing ur batteries n the CC will positively fail.

.... Still...,
The benefits outweigh the risks/exposure in my opinion.

Enlighten me of the risk cos I don't see what can cause a risk from CC to battery.

battleaxe:


.... Still...,
The benefits outweigh the risks/exposure in my opinion.

DMerciful:
Enlighten me of the risk cos I don't see what can cause a risk from CC to battery.

The CC short circuiting?

bigrovar:
The CC short circuiting?

What should the breaker capacity be for a 1300W solar array, 24V system (CC is rated at 60A)?

DMerciful:
Super yes! its the surest way to damage ur CC. Infact never install a breaker between the CC and battery cos any inadvertent trip fries your CC . Happened to a friend recently.

He used the breaker as a disconnect switch between CC and battery, which also served for resetting the cc. In the absence of this, what hardware do you recommend that will do both and also avoid nuisance trip?

mank1234:


He used the breaker as a disconnect switch between CC and battery, which also served for resetting the cc. In the absence of this, what hardware do you recommend that will do both and also avoid nuisance trip?

Hello, I don't really support the total removal of DC breakers especially when properly sized . In a situation where you don't want easy access of the general public or unauthorised personnel to operate certain devices, you can easily use a more private enclosure box for sensitive breakers .. Tag it DANGER or CAUTION ... That's all !!

Why will the CC short circuit?'its an advance technology remember! Its has inbuilt protection

bigrovar:
The CC short circuiting?

What does the manual says about resetting the CC? The CC has inbuilt protection and from the battery to CC what surge could possible spring up? If the CC short circuited that means its already bad n the internal fuse will break. Its not in every case circuit breaker protects

mank1234:


He used the breaker as a disconnect switch between CC and battery, which also served for resetting the cc. In the absence of this, what hardware do you recommend that will do both and also avoid nuisance trip?

I still strongly recommend that the only breaker is btw the PV and the CC. Btw CC and battery should be straight connection. The risk is negligible but if you decide to introduce a breaker btw CC and battery thereby creating a new higher risk, don't blame anybody if for any reason it trios during sunny time cos ur CC will be damaged.

mank1234:


What should the breaker capacity be for a 1300W solar array, 24V system (CC is rated at 60A)?

DMerciful:
I still strongly recommend that the only breaker is btw the PV and the CC. Btw CC and battery should be straight connection. The risk is negligible but if you decide to introduce a breaker btw CC and battery thereby creating a new higher risk, don't blame anybody if for any reason it trios during sunny time cos ur CC will be damaged.

#NOTE: not all experienced / skilled handy men likes seeing sparks here and there when connecting inverter or solar devices.. In my own case , I prefer switching off breakers when connecting inverter to battery or solar controllers to battery banks... Simply switch ON after installation ..Pro Safety measures entails !!!

DMerciful:
I still strongly recommend that the only breaker is btw the PV and the CC. Btw CC and battery should be straight connection. The risk is negligible but if you decide to introduce a breaker btw CC and battery thereby creating a new higher risk, don't blame anybody if for any reason it trios during sunny time cos ur CC will be damaged.

Why would it trip during a sunny time as you mentioned above?

I'm assuming it's because of an increased production I.e. Current at that point in time.

If your breaker is correctly sized at or above the rated capacity of your CC; why would you not want it to trip when it's seeing more current than its rated for?

That's its job! Again, if properly sized, the benefits to having a breaker there outweigh the possible risks to not having it there.

We sometimes may never be able to comprehend what damage those 6k items save us from!

N.B.: Note taken that if you have a breaker between your PV and combiner, it possibly should have tripped already based on your scenario above so CC should be all safe.

Watching at an obtuse angle,enjoying the tutorials from the gurus.Good morning @all

cc:kiekie1
battleaxe
Dmerciful

Green RE all the way,one love.