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Nairaland Forum / Entertainment / TV/Movies / Satellite TV Technology / Solar Energy, A Complement To FTA (2273062 Views)
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 Trueigbo: 1:00pm On Feb 23, 2019 |
kiekie1: Thank you. Which one do you advice i buy and what are the prices |
Re: Solar Energy, A Complement To FTA by duwdu: 1:26pm On Feb 23, 2019 |
NiyiOmoIyunade: Thanks and I agree with you. If I would split hairs, I'd say additional harvest from earlier wake-ups and later retirements afforded by a high voltage may just add up on those 'stubborn' days when the Sun takes forever to effectively "come on stream," leading to prolonged wee hours, and during unusually long and severe overcast periods? But again, that's probably just me. ........ P34c3 ..... ... |
Re: Solar Energy, A Complement To FTA by duwdu: 1:30pm On Feb 23, 2019 |
Trueigbo: Hmm... kiekie1, this may just be a strong indication that most guys don't necessarily pay attention to those long ads o. ![]() ........ P34c3 ..... ... 4 Likes |
Re: Solar Energy, A Complement To FTA by kiekie1(m): 1:56pm On Feb 23, 2019 |
Trueigbo: Ok kindly reach me for detailed briefing Sir; Smartcellglobal services, 081-350-31951 WHATSAPP::: https:///2348170385620 |
Re: Solar Energy, A Complement To FTA by kiekie1(m): 1:56pm On Feb 23, 2019 |
duwdu: Haha Sir .. Not really , you might be wrong unless for a newbie here ! We have 24hrs discreet reader's / adherent follower's as an oldie here ... As few type here , most prefer sending a PM or Calling even before sending you cash transfers for supplies ! Individual customer vary tho but we will keep delivering as usual.. Happy vote day Sir ![]() 1 Like |
Re: Solar Energy, A Complement To FTA by kiekie1(m): 2:21pm On Feb 23, 2019 |
Wow been running on solar alone for the past 4 days now ! It's not really sunny down here today . Astonished to see 60a instantaneous peak from my mppt now before throttling down to 55a due to change in weather"hazy" ![]() GREEN EFFICIENT ENERGY>>ALL THE WAY!!! 1 Like
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Re: Solar Energy, A Complement To FTA by Trippledots(m): 8:11pm On Feb 23, 2019 |
NiyiOmoIyunade: One of our hybrid sites that has PHCN integrated developed a fault from the grid end that caused the line sensitive system to reject grid supply and troubleshooting brought up a possible neutral fault. I checked up online and saw that a possible reason could be be a broken neutral to earth connection from the source (aka transformer). I went to the change over switch and ran a jumper wire from the neutral bar to a ground cable there. (roadside engineering, i know ![]() it worked So i think the neutral to earth is connected normally from the tx side in Nigeria |
Re: Solar Energy, A Complement To FTA by Trippledots(m): 8:14pm On Feb 23, 2019 |
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Re: Solar Energy, A Complement To FTA by NiyiOmoIyunade(m): 10:59pm On Feb 23, 2019 |
After much thought and some hours digesting IEEE 142-2007, NEC & some British electrical standards, I decided to talk to the electrical contractor to disconnect the Earth to Neutral jumper & leave the Earth unbonded. As far as I can tell, the only purpose of a Neutral to Earth bond at a local service entrance is to shorten the return path so that an RCD can detect the live vs neutral Amp imbalance faster and therefore trip and disconnect the supply faster. Without the jumper, the fault current would still go to Earth at local facility, travel through Earth to the local transformer Earth and then return to the local service entrance at which point the RCD would disconnect the supply - a longer path to be sure but the objective is still achieved. Interestingly, the British electrical reference manual seemed to have a Neutral to Earth bond for nearly all the transformer schemes - picture below mank1234:
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Re: Solar Energy, A Complement To FTA by NiyiOmoIyunade(m): 11:15pm On Feb 23, 2019 |
This may be one instance where it worked may not have been best practice except as a strictly temporary fix. It seems to me you had an open neutral and by jumpering Neutral and Earth, you simply substituted the Earth wire as the return path for current. By design, the Earth wire should carry no current unless there is a fault condition - all sorts of bad stuff could happen using the zero reference (Earth) as a return path for current on a routine basis. Trippledots: 1 Like |
Re: Solar Energy, A Complement To FTA by Trippledots(m): 9:59am On Feb 24, 2019 |
NiyiOmoIyunade: @bolded.... If that was the case, would i find voltage on the neutral line and no voltage on one of the phases? Cause that's what happened. Like you reiterated, twas a temporary fix. |
Re: Solar Energy, A Complement To FTA by NiyiOmoIyunade(m): 10:38am On Feb 24, 2019 |
My Oga I was reacting strictly based on the information you provided (my best interpretation of it). Surely, I may be unable to accurately diagnose an electrical fault (from several KMs away and based on just one or two sentences defining the problem ![]() ![]() ![]() No offense intended at all. It is customary in Nigeria to have one or two phases with no voltage feeding in from the PHCN mains - still for the grid to pass power through to an inverter and loads, at least 1 live phase out of the 3 available is required as the source of supply . Given 1 live phase and no power pass through the next check would be at the return wire (Neutral) - if you were able to substitute the Earth wire as return path and thereby reestablish power, then I inferred that the Neutral was broken/open somewhere in the network esp. if the neutral was presenting as a voltage source. It could also be that you had a short circuit somewhere within the facility or the phase and neutral touching (e.g. tree branch pushing against power line) somewhere in the grid system. There are several possibilities, you as the man on site are best placed to diagnose the issues and bring the learnings back to the house. With electrical faults, my personal preference is to isolate the issue for sure and fix it immediately to avoid further problems downstream. Trippledots: |
Re: Solar Energy, A Complement To FTA by Saipro(m): 2:46pm On Feb 24, 2019 |
duwdu:For the first few months, I ran a PV array of about 70V which had much higher current in the line but closer to CC optimization curves. The next two years, I optimised my system by having a PV string of 100V for a charge voltage of 57.2V. While having higher VoC, this system harvested better (despite less promising optimization curve yields). The current arrangement has 4 panels in a row for a VoC of about 140V. Wakes up earlier and sleeps later (harvest not significant). What is significant however are the harvests during overcast weather and days when panels are dust coated. I get up to 15% increment in harvest. While it might not seem like much, it makes all the difference between waking up to 88% rather than 82%. Or on deep discharge days (82% for me), ending the day on float or absorb at 99%. Over the months and years, that's a lot. 2 Likes |
Re: Solar Energy, A Complement To FTA by Trippledots(m): 7:29pm On Feb 24, 2019 |
NiyiOmoIyunade: Scene of crime ke...hahahaha. pls no offense taken too. if my statement passed off as such, my apologies pls. We are all here to learn.... Wrt to your statement of atleast 1 live phase needed for the inverter. the system i am talking about is a three-phase system that is designed to lock out grid once any phase is missing and i have since contacted the undertaking that serves that site to come look into the problem, but up till now, over 2 weeks ago "they are still coming" smh ![]() |
Re: Solar Energy, A Complement To FTA by ojeysky(m): 7:51pm On Feb 24, 2019 |
duwdu: I don't want the 48v, my setup is 24v for now. It is supposed to replace the current 24v 1.5kva inverter that I currently use. The 3kva MK series is limited to 1500W irrespective of whether it's 24/48v duwdu: Cool am sticking with getting the GK series then, please I will be interested in how you finally did your setup: The wire size and distance to CC, DC breaker specs, other accessories used and how they are connected duwdu: This is fine by me, I don't think I would need that extension. The up to 4kw in the 3kva of the GK is already more than sufficient for me. Thanks |
Re: Solar Energy, A Complement To FTA by dejidotun2000(m): 8:15pm On Feb 24, 2019 |
In a 3 phase star connected winding (which is what your transformer is), if the neutral terminal were to become ungrounded the neutral will rise with respect to the ground except the loading on the 3 phases is balanced. The loading is never balanced thus you will find a voltage on it. Trippledots: |
Re: Solar Energy, A Complement To FTA by kiekie1(m): 9:08pm On Feb 24, 2019 |
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Re: Solar Energy, A Complement To FTA by efuro(m): 10:06am On Feb 25, 2019 |
kiekie1: Frankie My friend and dealer. I am pressed from the sidelines to read the ugly comments of readers on other rooms regarding your posts and pricelist, perhaps the frequency of your post may have culminated to that. Your frequent pasting on every page here too is worrisome and derisory to your image and accrued goodwill which is bad for your business. Many may feel you are desperate and implicitl have their judgement in dealing with you. I know you are quick to temper but just my honest view though. 11 Likes |
Re: Solar Energy, A Complement To FTA by pheleix: 10:09am On Feb 25, 2019 |
earthrealm:Are you sure it was properly refilled, assuming the compressor are same spec? They need to pull vacuum on the system, put in the correct weight of the refrigerant. If these are not observed the compressor will work at a different watt |
Re: Solar Energy, A Complement To FTA by kiekie1(m): 11:25am On Feb 25, 2019 |
efuro: Hello Good morning, been a while although you do send personal messages via WhatsApp if you need to commune with me .. Simply overlook unnecessary biased assumptions as I see nothing spectacular or criminal minded castigations as you made it look , so try ignore as most men do ! An adjusted/edited post per page might be for a target audience and I don't see how some monitor such when not interested ! "He who wears the shoes knows where it itches" , those who post ain't equal to most who call n transact if seriously interested , simply ignore if not interested ! Don't be too quick to always judge one tho as we don't have same individual characteristics ![]() 1 Like 2 Shares |
Re: Solar Energy, A Complement To FTA by Valto(m): 1:36pm On Feb 25, 2019 |
thanks to oga DMERCIFUL for the 50amps blue fangpusun controller and DC breaker sold/supplied to me at a very affordable price. installed and working perfectly ![]() 1 Like |
Re: Solar Energy, A Complement To FTA by pranil(m): 1:42pm On Feb 25, 2019 |
kiekie1: Could I suggest a simpler and more elegant solution? since the item is too much even for interested parties to look at . Put all items in an excel file with drop down to sort by category - The file may be easier for you to maintain and users to use( e.g. forward to friends, associated while recommending you as a supplier) Either attach the file to post or store it on google drive/dropbox and only post with a link along with your contact deatils and promotional message You can highlight only newly added itms or priceses dropped significantly ( say 20%) in the post to grab attention of users wbr Anil 7 Likes |
Re: Solar Energy, A Complement To FTA by DMerciful(m): 2:23pm On Feb 25, 2019 |
Thanks for your patronage....Very much appreciated ![]() Valto: |
Re: Solar Energy, A Complement To FTA by pheleix: 2:40pm On Feb 25, 2019 |
Urgent Pls ! Who has fairly used battery for sale. Location Owerri. Earthrealm do you have any? |
Re: Solar Energy, A Complement To FTA by earthrealm(m): 5:39pm On Feb 25, 2019 |
pheleix: are you sure, you wanna buy from me? ![]() ![]() ![]() i have about 6months old long batts,they fare well under loads below 1kw, but drop voltage with higher loading |
Re: Solar Energy, A Complement To FTA by earthrealm(m): 5:39pm On Feb 25, 2019 |
pheleix: yeah, try telling that to a naija technician, he will tell you how he has been doing this work b4 he was even born ![]() ![]() the trouble in this country of half baked technicians, i know haier thermoccol have ventured into inverter acs, anybody using their units?... apart from LG N haierthermoccol..wch other inverter ac make is out there..that is reliable? 3 Likes |
Re: Solar Energy, A Complement To FTA by kiekie1(m): 7:45pm On Feb 25, 2019 |
pranil: Ok Boss, I will definitely work on that ! Thanks Sir |
Re: Solar Energy, A Complement To FTA by ojeysky(m): 8:02pm On Feb 25, 2019 |
ojeysky: Now waiting patiently for my 3Kva GK Series to arrive
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Re: Solar Energy, A Complement To FTA by Saipro(m): 10:07pm On Feb 25, 2019 |
NiyiOmoIyunade:Any particular reason for avoiding SSRs? Just got a few for heating purposes. |
Re: Solar Energy, A Complement To FTA by Namzy(m): 10:37pm On Feb 25, 2019 |
ojeysky:How much total? |
Re: Solar Energy, A Complement To FTA by NiyiOmoIyunade(m): 10:53pm On Feb 25, 2019 |
The SSRs are a bit more failure prone and you will need to mount them on an heat sink and sometimes add a fan too - the heavier the load demands on the SSR, the hotter it runs in general. All these limits and you will still pay a premium for it. The electro-mechanical relays do not need any external cooling and the versions I have used switch within 10ms (faster than your average inverter) the only big minus for me is that loud thud when the coil engages and switches the contacts ON/OFF - the noise always startles my Madam and makes her nearly jump out of her seat ![]() Saipro: 1 Like |
Re: Solar Energy, A Complement To FTA by Nobody: 8:43am On Feb 26, 2019 |
I recently installed a 1.5Kva Luminous Solar Hybrid Inverter with 2 220ah Luminous Flooded Inverlast batteries. The load on the inverter is roughly 10 5Watt LED bulbs, 2 70w fans and a 32 inch LED TV with GoTV decoder. I want to add some solar panels and I have several questions: 1) What Solar panels do you recommend with PROVEN high production efficiencies? I read of Flames, Suntech, Canadian Solar, Yingli, etc. etc. 2) The Luminous Solar Hybrid has an in-built CC of 40a. Does anyone have experience with this inverter? Should I still buy a separate MPPT for the solar setup or use the inbuilt? 3) I read about the importance of equalizing batteries. How often should I do this for my batteries, what charger should I use and for how long? Thanks. |
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