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Nairaland Forum / Entertainment / TV/Movies / Satellite TV Technology / Solar Energy, A Complement To FTA (2270901 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 Tolutopsy: 11:47pm On Nov 16, 2020 |
earthrealm: Anyone available for sale? |
Re: Solar Energy, A Complement To FTA by earthrealm(m): 11:50pm On Nov 16, 2020 |
abbeymighty: Thats the typical behaviour of flooded batts. Its more pronounced when they are relatively new. |
Re: Solar Energy, A Complement To FTA by mctfopt: 3:14am On Nov 17, 2020 |
ceaser: If you can trace the short and remove it that will be fine. A generator can handle shorts better than an inverter. Run a continuity test between the three wires (L,N and E). You can check the wires to see if there are areas (especially around joints) that the live may be making contacts with either the neutral or earth. This can also be ascertained by putting the loads off, removing both the output and input wires of the inverter and connecting it together, place a clamp meter on the wire and power on. Check for any presence of high current. If you cannot find any, then there is no short on the line. Also there is a possibility that there is a faulty electrical equipment that introduces short to the system. You can have them power everything they ever use (including chargers for different devices) to see if any of it is the rogue equipment. I hope there is no backfeed from the output of the inverter to the input. The shock you got may have something to do with you being bare feet. Reason it is advised to wear a thick rubber boot while working with electricity- you gotta increase your resistance to electric current flow. 2 Likes 1 Share |
Re: Solar Energy, A Complement To FTA by ceaser: 4:14am On Nov 17, 2020 |
mctfopt: Thanks so much for this. @ bolded, I wouldn't be sure but that suspicion was why I made that statement of electric shock when I touched the battery terminal. I'm used to working with standalone systems (that power appliances directly rather than going thru the wiring of the house, so I touch the DC terminals of those without experiencing shock. What would cause such back feed? I don't have access to a clamp meter, just the usual multimeter. I'll try a continuity test using that. In the event of confirmed short which may not be easily traceable, na for the guy to follow Ògá Niyi's prescription of an amp limiter. But inverters have short circuit protection built into 'em. Isn't that supposed to offer some sort of protection to the device itself so that it does not go kaput due to shorts? This can also be ascertained by putting the loads off, removing both the output and input wires of the inverter and connecting it together, place a clamp meter on the wire and power on. Check for any presence of high current. If you cannot find any, then there is no short on the line. @ bolded. I don't really get that connection described. |
Re: Solar Energy, A Complement To FTA by NiyiOmoIyunade(m): 6:07am On Nov 17, 2020 |
If you got an electric jolt while touching a battery terminal and the DC bus is running under 60v, this suggests that there is no earthing/grounding in place and/or the inverter is not connected to earth/ground. Typically cheap inverters have poor isolation in the internal components and some current leakage occurs and can manifest as slight to severe electric jolts when you touch the metallic chassis or screws used to hold the inverter together or the battery terminals. Proper earthing usually masks the problem by giving the fault currents a lower resistance path to go to. The electronic amp limiter is a lazy/modern/smart way to identify the problem here. JUO sells the devices and I have a few too (but targeted to protect our installations and not for direct sales). I see that someone else has given a working guide to identify shorts by testing for continuity between L, N, E or looking for high currents in the line. I use a different approach to get close to the problem - having ascertained that a short is indeed the root cause (observe current reading spikes on the amp limiter), we begin to switch off breakers one by one on the DB until the spikes stop or the other way round switch on breakers on the DB one at a time until the spikes start. Having isolated the portion of house wiring that feeds that problem breaker, we commence troubleshooting from there. This method presupposes a standard installation with DB and breakers dedicated for inverter loads, if all the load wires were twisted together at the inverter output, you simply have to unbundle all and bring them back together one at a time. ceaser: 1 Like |
Re: Solar Energy, A Complement To FTA by Valto(m): 6:25am On Nov 17, 2020 |
Tolutopsy:i recently acquired this TBB POWER 10kva servo stablizer. its rugged and efficient.wall mountable type. 80V to 270V. it is very much affordable. u can get it below 100k. 1 Like 2 Shares
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Re: Solar Energy, A Complement To FTA by mctfopt: 7:44am On Nov 17, 2020 |
ceaser: Most backfeed is mostly from electrical connection, when the output is allowed to feed the input. Also it can be as a result of inverter failure. The short circuit protection response time of various inverter differs, some may respond slower than others, and by then the damage is already done. The connection I described is simply bypassing the inverter. Just connect both lives together, do same for both neutral and the earth respectively- effectively bypassing the inverter. 1 Like |
Re: Solar Energy, A Complement To FTA by mctfopt: 7:47am On Nov 17, 2020 |
I'm in the market for a good smart 8s BMS for Lifepo4 batteries with active balancer of between 1A to 2A. Anyone got ideas on which brand to get? Links, screenshots, suggestions are all welcome. ![]() |
Re: Solar Energy, A Complement To FTA by Tolutopsy: 8:17am On Nov 17, 2020 |
Valto: Where can I get one of this? |
Re: Solar Energy, A Complement To FTA by odimbannamdi(m): 9:20am On Nov 17, 2020 |
Tolutopsy: I have a 12kva Prag relay central home stabilizer that should be able to pick that range |
Re: Solar Energy, A Complement To FTA by odimbannamdi(m): 9:22am On Nov 17, 2020 |
Valto: My Oga, can you share pics of the lcd battery monitor with 100A shunt, as well as price? I go message your for whatsapp later though |
Re: Solar Energy, A Complement To FTA by odimbannamdi(m): 9:23am On Nov 17, 2020 |
Abdomox: Aaaah! Fear catch me ooo...Thanks God. Weldone bro 1 Like |
Re: Solar Energy, A Complement To FTA by odimbannamdi(m): 9:24am On Nov 17, 2020 |
Monlo: Still available? |
Re: Solar Energy, A Complement To FTA by zeestone99(m): 9:28am On Nov 17, 2020 |
a4cube: You can call/chat 08117398294 for professional installation. |
Re: Solar Energy, A Complement To FTA by odimbannamdi(m): 9:30am On Nov 17, 2020 |
viperVIP: Donblanco, please how can you assist this our guy with some advise? I know you use an 200ah Eastman tubular battery and it has been servicing you oerfectly since March this year. |
Re: Solar Energy, A Complement To FTA by Valto(m): 9:31am On Nov 17, 2020 |
Tolutopsy:it is sold by AMARSHAL POWER. they sell rugged inverters too. they have office in lagos. thier sales rep number is-080-3732-3210 2 Likes 2 Shares |
Re: Solar Energy, A Complement To FTA by odimbannamdi(m): 9:35am On Nov 17, 2020 |
NiyiOmoIyunade: Mehn! In this inverter hustle, there are many ways things could go south. So many factors beyond one's view and control. This amp limiter, sir; can it be installed as a prevention for this kinda situation even though one is yet to experience it? |
Re: Solar Energy, A Complement To FTA by odimbannamdi(m): 9:42am On Nov 17, 2020 |
NiyiOmoIyunade: I think this was the same problem Abdomox was having with his 2 units of newly installed Luminous tubular batteries. The electrolyte was gauged beyond the recommended level, and he had to drain out nearly a litre of it before things resolved. The guy should follow the steps you highlighted and inform the house. I also remember earthrealm saying something about most inverters being incapable of effective charging a flooded battery. I think one has to be specific in inverter selection when using a flooded battery Regarding the emboldened; how possible is it? Can you explain how the connection would look like? |
Re: Solar Energy, A Complement To FTA by odimbannamdi(m): 9:43am On Nov 17, 2020 |
viperVIP: Weldone, sir. I am particularly interested in your case coz i was about getting a tubular battery a month ago before plans changed. I hope you get it resolved eventually |
Re: Solar Energy, A Complement To FTA by zeestone99(m): 9:45am On Nov 17, 2020 |
odimbannamdi:Yea you can |
Re: Solar Energy, A Complement To FTA by earthrealm(m): 10:48am On Nov 17, 2020 |
Tolutopsy: search on jumia/konga[quote author=odimbannamdi post=96129584] I think this was the same problem Abdomox was having with his 2 units of newly installed Luminous tubular batteries. The electrolyte was gauged beyond the recommended level, and he had to drain out nearly a litre of it before things resolved. The guy should follow the steps you highlighted and inform the house. I also remember earthrealm saying something about most inverters being incapable of effective charging a flooded battery. I think one has to be specific in inverter selection when using a flooded battery Regarding the emboldened; how possible is it[b]? Can you explain how the connection would look like?[[/b]/quote] simply hook up the terminals of the battery charger onto the battery, same place the inverter terminals are hooked up... |
Re: Solar Energy, A Complement To FTA by Ceaser01: 10:52am On Nov 17, 2020 |
NiyiOmoIyunade: @ Bolded. You're absolutely correct. It's 48 volt system and I don't think the inverter has earthing. My own inverter has a scr3w point on the casing for earth wire and it came bundled with the special wire to use for the scr3w point. I'll instruct the guy to check continuity between the building wirings to check for shorts. I believe all appliances should be unplugged from all sockets and heater fuses switched off at the Distribution Box before commencing this trouble shooting. Thanks for the wonderful inputs. Posting with the alternate profile. SpamBot went on overdrive again when I posted this response. Maybe it's my use of the word "scr3w" in it's unaltered form. |
Re: Solar Energy, A Complement To FTA by ubiplanet(m): 11:28am On Nov 17, 2020 |
Monlo: Still available? |
Re: Solar Energy, A Complement To FTA by ubiplanet(m): 11:33am On Nov 17, 2020 |
Any one with a very good fairly used 200ah 12v battery for sale. |
Re: Solar Energy, A Complement To FTA by Tolutopsy: 12:46pm On Nov 17, 2020 |
Valto: Okay, thanks. |
Re: Solar Energy, A Complement To FTA by Tolutopsy: 12:47pm On Nov 17, 2020 |
odimbannamdi: Drop your contact details |
Re: Solar Energy, A Complement To FTA by ojeysky(m): 1:02pm On Nov 17, 2020 |
mctfopt: I know someone who has the attached for 50k/60k it's 100A/150A with 1A/1.5A balance
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