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UPS Back-up, Also A Complement To FTA / FTA Frequency / Cctv Installation A Complement To Fta And Solar Energy (2) (3) (4)
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Re: Solar Energy, A Complement To FTA by zellfoxx: 6:09pm On Jun 21, 2018 |
mcTrinity: Yes. There's no L1 and L2. Just L. Looks like yours is a split phase model which i believe is supposed to supply just 120VAC if you wire just one leg (L1 in your case) input and output with neutral. Mine is the Conext SW 4048 230V What model is yours? |
Re: Solar Energy, A Complement To FTA by NiyiOmoIyunade(m): 6:12pm On Jun 21, 2018 |
My Oga. Many thanks. With this short explanation you just clarified some things in my head but simultaneously gave me stuff to ponder on... especially around the N-E bond at the inverter in battery mode. Let me take some time to work it out in my head first. Further question please - I agree that neutral and earth/ground are almost certainly already bonded at the utility transformer but do people actually do same at service entry or distribution panel? Barezzi: |
Re: Solar Energy, A Complement To FTA by mcTrinity(m): 6:40pm On Jun 21, 2018 |
zellfoxx: SW 4048 120/240v
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Re: Solar Energy, A Complement To FTA by Barezzi(m): 7:02pm On Jun 21, 2018 |
IMHO, I don't think it's necessary to do so. cc: Pranil NiyiOmoIyunade: |
Re: Solar Energy, A Complement To FTA by zellfoxx: 7:42pm On Jun 21, 2018 |
mcTrinity: Thought as much. This is a split phase model. Have no experience with this though. Perhaps our in-house gurus can enlighten you more on how to go about wiring this. But from the little I do know, you'll need a 120VAC single phase input(L1-N) or the 120/240VAC(L1-N-L2) as AC input from the utility grid use. 1 Like |
Re: Solar Energy, A Complement To FTA by zellfoxx: 8:31pm On Jun 21, 2018 |
Barezzi: Seems what I originally thought was a flaw is actually meant to prevent this unsafe loop on Neutral busbar. After much thought and research today, I now see the reason for this is to enable compulsory Neutral 'bypass mode' on the CSW with the AC switchgear to maintain the N-E bond at utility grid instead of the 'pass through mode' practiced by many which cuts this bond. On checking the manual for the split phase model, I found this page ( missing in the single phase manual ) that shed abit more light on the N-E bond. PS: Because of our sub-par maintenance culture in this part of the globe, one can't rely on the N-E bond at our transformers to be really up to the task all the time. So its probably better to have it at one's Distribution panel at home...to prevent Floating neutral issues. 1 Like
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Re: Solar Energy, A Complement To FTA by EnigmaticEnigma(m): 8:36pm On Jun 21, 2018 |
I have 4 dead GLT batteries and 2 dead Mercury batteries for sale. Call 0817-194-2851. Batteries hold voltage but no capacity, so dead!! |
Re: Solar Energy, A Complement To FTA by jazzman2(m): 8:40pm On Jun 21, 2018 |
mcTrinity: This is North American split phase 120v/240v, 60Hz system. Not compatible with our single phase 230v, 50Hz system. 1 Like |
Re: Solar Energy, A Complement To FTA by mcTrinity(m): 8:54pm On Jun 21, 2018 |
jazzman2: yeah.... Thanks Jazzman. much appreciation |
Re: Solar Energy, A Complement To FTA by NiyiOmoIyunade(m): 9:00pm On Jun 21, 2018 |
My Oga. Many thanks. The attachment you made clarifies in fairly simple language if and how to perform the Neutral to Earth/Ground bond correctly. For the overzealous, this N-E bond if implemented must be done at only one single point in an electrical system - if you have more than one point of N-E bond, I would say one has basically created a parallel neutral circuit and made it virtually impossible for over-current devices to work correctly as well as difficult to predict which wires will remain energised in the system in the event of a fault and safety disconnect. I am still undecided if one should bond the N-E at distribution panel - I would say if unsure leave Earth and Neutral alone and isolated on their separate buses. Like Oga Barezzi pointed out this would make the entire ground at that installation a massive sink for fault currents but since the utility service is already bonded at mains transformer, I would say the only faults are likely to be generated locally within the electrical installation and I wager such fault currents will be relatively small and should safely sink to ground at the local Earth point. zellfoxx: |
Re: Solar Energy, A Complement To FTA by Saipro(m): 9:08pm On Jun 21, 2018 |
zellfoxx: In the rare event of ground/neutral line faults from the transformer, this would be a serious headache. Seen such a few times in the past 3 decades. Potentially catastrophic events waiting to happen. It would seem the inverter is for regions where the grid is implicitly trusted. In naija, ... it's anyone's guess the number of things which could go wrong, with cables falling over each other, etc. You've all got me thinking. Once rewired an installation because because of persistent earth fault trips. Seems I need to crack my brain on a lasting solution for all these earthing issues which are a recurrent decimal. 1 Like |
Re: Solar Energy, A Complement To FTA by Saipro(m): 9:12pm On Jun 21, 2018 |
NiyiOmoIyunade:For those of us whom use MustPower and like inverters, I dare say I'd choose the path of isolated buses for either. Being able to sell to the grid would have eliminated most of these issues as we'd have compulsorily unilateral N-E bonding both ways. We'll get there someday ... when the grid itself gets untangled. |
Re: Solar Energy, A Complement To FTA by OnePunchMan: 9:15pm On Jun 21, 2018 |
OnePunchMan: |
Re: Solar Energy, A Complement To FTA by earthrealm(m): 10:04pm On Jun 21, 2018 |
[quote author=OnePunchMan post=68700748][/quote] do you do ship/ocean freight, i have some heavy stuff i wannt to bring in..about 100lbs, thus not economical with air freight |
Re: Solar Energy, A Complement To FTA by mank1234(m): 10:12pm On Jun 21, 2018 |
Don't connect neutral with earth except if you're totally off-grid with no physical connection to the grid. There are various earthing scheme as stated in the Wikipedia link below. Nigeria uses TT system of earthing. If you're connected to the grid, no matter how good your earthing is, if you bond neutral and earth together you'll still feel that tingling effect if you touch the chassis of your equipment. More so, your residual current devices would fail to operate correctly. If you're not connected to the grid, it may even better to have a floating system, because if you touch only one of the conductor you cannot get a shock as there's no path for current to flow through earth. You'll only get a shock if you touch both conductor. https://en.m.wikipedia.org/wiki/Earthing_system 1 Like |
Re: Solar Energy, A Complement To FTA by VULCAN(m): 11:13pm On Jun 21, 2018 |
@McTrinity, Thanks for responding. I currently have 12X 2V but have never enjoyed it as I never got 6hrs from sundown with just 3 fans, energy saving bulbs and on rare occasions one of my fridges for an hour or two connected to inverter. It appears installer sold me refurbished batteries for the price of new. I have a 24V/50A Roy Solar and 3.4Kva Bluegate Inverter Now I am in the process of ordering 8X12V Gaston while I decide which cost effective inverter and charge controller to move to. Nepa is good in my area and 12hrs+ a day is the norm so the aim of inverter is just to avoid having to go back and forth when Power goes on and off in the middle of the night. I also hate the noise of gen. Lol Thanks mcTrinity: |
Re: Solar Energy, A Complement To FTA by VULCAN(m): 11:26pm On Jun 21, 2018 |
You hit the nail squarely on the head. Placing "the Source" as the focal point. It's rather sad that most people are so focused on getting one over their customers so they feel no qualms about selling something substandard or ill fitting to one's needs. Thanks. mcTrinity: 2 Likes |
Re: Solar Energy, A Complement To FTA by kiekie1(m): 5:19am On Jun 22, 2018 |
Feel free to contact us for your renewable energy needs ! Smartcell global services, 081-350-31951 1 Like
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Re: Solar Energy, A Complement To FTA by kiekie1(m): 7:09am On Jun 22, 2018 |
We recently acquired fairly used telecoms batteries and it came out good after individual testing & reading smiley . Battery brand name: Ritar Capacity: 12v 105a Weight: 30/32kg Description: Front access telecom battery Price : N27,000 per unit Quantity procured : 65 units Sold: 61 units In stock : 04 units left Location : Abule Egba , Lagos state ! Deliveries : We waybill to any state (T&C applies) Also available in limited qty: 12v 200a ...... N45,000 IN STOCK: 3 UNITS Contact: Sir Frankie Smartcell global services 081-350-31951 1 Like
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Re: Solar Energy, A Complement To FTA by mcTrinity(m): 7:48am On Jun 22, 2018 |
VULCAN: "cost effective" means you're not considering the premium brands. well, oga Niyi has given a good personal review on the Mustpower (which is one of your options), so you can go ahead with it. And since you're getting 8 batteries of 12v, it means you're going for 48v (4kva, probably) As for SCC, you can go for Fangpusun Flexmax (outback clone) or fangpusun Blue series (victron clone) or go for Epsolar (iTracer) or Epever (eTracer). PERSONALLY, I prefer Epsolar/Epever. though some gurus here have given the top score to fangpusun. for any of the CC, the size will depend on the size of your solar Nevertheless, whatever you're getting, get from a reputable source. Cheers 1 Like 1 Share |
Re: Solar Energy, A Complement To FTA by Ndagi123(m): 10:12am On Jun 22, 2018 |
kiekie1: Eagerly waiting for the delivery of two paid for sir thank you 2 Likes |
Re: Solar Energy, A Complement To FTA by duwdu: 10:54am On Jun 22, 2018 |
VULCAN: Very well said unfortunately, especially with some of these suppliers at least some of the time. ........ P34c3 ..... ... |
Re: Solar Energy, A Complement To FTA by makawhy201: 11:31am On Jun 22, 2018 |
@Vulcan, sorry for experiencing the bad side of going solar, please if i may ask? whats issue you are having with your Bluegate 3.5kva inverter you planning to replace? cos i have been using the 2kva version for the past 6years and still working like new and never gone for repair for once even with constant abuse because I am considering upgrading to 3.5kva or 5kva model for my upgrade. VULCAN: |
Re: Solar Energy, A Complement To FTA by hardywaltz(m): 12:09pm On Jun 22, 2018 |
makawhy201:I used that Bluegate 2kva for close to 7 years, a very reliable equipment. Unfortunately it has only two stage charging (Bulk) then float. It's more advisable to use Mustpower inverter. |
Re: Solar Energy, A Complement To FTA by makawhy201: 12:23pm On Jun 22, 2018 |
@hardywaltz, well wont knw about the charging stages but i used my batteries on it for more than 5yrs before changing it during upgrade, also the 3.5kva and 5kva have 3 charging stages with 50A and 60A respectively. hardywaltz: |
Re: Solar Energy, A Complement To FTA by earthrealm(m): 12:59pm On Jun 22, 2018 |
VULCAN: YAH the low voltage is meduim loud, a sharp beeping noise... i have several installations. i have 60amp epsolar mppt itracer on one..cost btw 115k to 130k i also have fangpusun 60amp mppt cost is btw 85k to 120k. the epsolar is superb, the only thing i hate about it is that it doesnt store kwh harvest logs. so you cant scroll back to see the harvest in kwh say 3wks ago... |
Re: Solar Energy, A Complement To FTA by earthrealm(m): 1:03pm On Jun 22, 2018 |
makawhy201: what type of battery, how many units? did you hook up solar to it? does it have batt type selector switch? |
Re: Solar Energy, A Complement To FTA by makawhy201: 1:18pm On Jun 22, 2018 |
Are you referring to my 2kva inverter? if yes, 2pcs of 100ah Fullriver batteries, but my sister uses her own with 4pcs of 100ah, no solar until i upgraded my batteries to 4pcs, it doesnt have battery selector switch but the newer model like the 3.5kva has it. earthrealm: 1 Like |
Re: Solar Energy, A Complement To FTA by EnigmaticEnigma(m): 2:30pm On Jun 22, 2018 |
EnigmaticEnigma: I have 4 dead GLT batteries and 2 dead Mercury batteries for sale. Call 0817-194-2851. Batteries hold voltage but no capacity, so dead!! |
Re: Solar Energy, A Complement To FTA by pranil(m): 3:15pm On Jun 22, 2018 |
mcTrinity:\ GUYS Are you sure you did not get the US model ( there is L1 and L2 with N) only in US models L1, L2 E and N for UK/EU 230 V 50 HZ models there is L, N and E for both input output or is it SW+ with separate generator input see the snapshot from manual and download link - https://41j5tc3akbrn3uezx5av0jj1bgm-wpengine.netdna-ssl.com/wp-content/uploads/2018/05/ML20180101_Conext-SW-230V-Installation-Guide-975-0637-01-01_Rev-F_ENG.pdf even Schinder is looping the neutrals on a neutral busbar for both input and output so I would say you can safely loop them with same size conductor as L input
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Re: Solar Energy, A Complement To FTA by hisenjos: 4:00pm On Jun 22, 2018 |
Just got this Chevrolet Volt battery in. 16kwh total running at 360v. Very heavy unit -over 200kg Going to break it down to 48v and 24v units to use. Will try and post pictures when it is done. 3 Likes
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