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Nairaland Forum / Entertainment / TV/Movies / Satellite TV Technology / Solar Energy, A Complement To FTA (2272883 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 Alejoc(m): 6:16pm On Jul 15, 2018 |
Pls I have some Suoer 350watt Inverter showing red fault light not supplying power.....pls what could be wrong with these inverter.... They were previously working before showing the faulty red light and I have adjusted the cable several times already with no success |
Re: Solar Energy, A Complement To FTA by NiyiOmoIyunade(m): 7:30pm On Jul 15, 2018 |
I have been attempting to DIY an automatic transfer switch and testing the device in three locations - two out of three are working good but the third location suffers from chronic low mains voltage (relay coil rated 220v sees 172v to 180v from PHCN) and this causes 'chattering' and ultimately the relay burns out. I have attached a rough schematic and actual picture below - you will see from the schematic that I shorted signal/coil (live from PHCN) to Common on the source side and shorted NC to NO on the load side since I am using two separate power sources (Mains from PHCN has priority and inverter with timer attached for fixed hours of run time if no mains) to power one load. I became concerned how the switch/relay chattered and failed when subjected to low voltage far below the coil rating and I am thinking of a way to handle this fault condition gracefully - the only thing I could come up with is a circuit breaker on the mains side closer to the relay even though the live wire feed from PHCN is already protected at the distribution board same for the inverter output. Suggestions and ideas on how to make this work safely are welcome - the schematic only shows the live wires being switched and then common neutral being done outside the switch for simplicity.
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Re: Solar Energy, A Complement To FTA by pranil(m): 7:48pm On Jul 15, 2018 |
NiyiOmoIyunade: it is rather simple. Buy a 12 V coil relay and ded the coil through aAC /DC power supply ( you can find one easily ) popularly known as battery eliminator I do this for all my control circuits as it makes them safe to handle. also the 12 V control parts are cheaper and easier to find on both continents ( US , UK ) alternatively, use this which has batter contact rating for mains then the omron one you are using as it is nor rated to pen inductive loads https://www.aliexpress.com/item/CJX2-CJX2-0910-LC1-ac-contactor-24V-AC-9A-50HZ-60HZ-orginal-lc1-0910-24v-free/856880658.html every contractor has duty cycle and for load changeover you need 7-A or 7 B duty cycle to ensure long life https://en.wikipedia.org/wiki/Utilization_categories |
Re: Solar Energy, A Complement To FTA by NiyiOmoIyunade(m): 8:32pm On Jul 15, 2018 |
Many thanks Oga Pranil Introducing an AC/DC power supply to energize the coil is another possible point of failure which I want to avoid if possible. And yes I will use a beefy contactor if I plan to switch large loads although that 10a rated Omron relay is rated for 2a of inductive loads I think. Would a circuit breaker in line help interrupt the power if the contacts begin to chatter and avoid catastrophic failure? One interesting thing I found in my experimentation is that the relays seemed to achieve nearly instantaneous changeover even better than normal inverter transfer times - 8ms per the spec sheet with most loads including a fridge not even noticing the changeover but it is much slower when using a contactor. pranil: |
Re: Solar Energy, A Complement To FTA by BRIGHTSOLAR(m): 8:38pm On Jul 15, 2018 |
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Re: Solar Energy, A Complement To FTA by makavele: 8:55pm On Jul 15, 2018 |
work in progess,,,stay tuned
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Re: Solar Energy, A Complement To FTA by mank1234(m): 10:29pm On Jul 15, 2018 |
makavele: With this picture a work of 10min may turn to 1hr. 2 Likes |
Re: Solar Energy, A Complement To FTA by makavele: 1:14am On Jul 16, 2018 |
Re: Solar Energy, A Complement To FTA by makavele: 1:31am On Jul 16, 2018 |
still tryna make a decision; along came the bus bar. . . can handle 200A of current
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Re: Solar Energy, A Complement To FTA by makavele: 1:32am On Jul 16, 2018 |
Inverter mounted; thanks for wifey who helped me drill...
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Re: Solar Energy, A Complement To FTA by makavele: 1:33am On Jul 16, 2018 |
found a board; cut it to shape and mounted it. . stripped a little bit of the edge by accident but will cover it up later
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Re: Solar Energy, A Complement To FTA by makavele: 1:34am On Jul 16, 2018 |
Now the calculation and drawings to make sure everything is dead center and accurate. dont blame me, i am a perfectionist and i love it so
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Re: Solar Energy, A Complement To FTA by makavele: 1:35am On Jul 16, 2018 |
And it's taking shape 1 Like
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Re: Solar Energy, A Complement To FTA by makavele: 1:36am On Jul 16, 2018 |
Moving ahead
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Re: Solar Energy, A Complement To FTA by makavele: 1:37am On Jul 16, 2018 |
It was past 12 am by now and i gotta be at the office tomorrow; so i quit here; will continue in the evening.
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Re: Solar Energy, A Complement To FTA by makavele: 1:40am On Jul 16, 2018 |
In retrospect; this was how I started. ![]() ![]() ![]() ![]() ![]() ![]() ![]() ![]() Do not despise the days of little beginnings 2 Likes
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Re: Solar Energy, A Complement To FTA by richmon74(m): 1:44am On Jul 16, 2018 |
ANEB: only one advice for you; NO LOAD CONSUMPTION IS OVER 200W 2 Likes |
Re: Solar Energy, A Complement To FTA by zeestone99(m): 3:59am On Jul 16, 2018 |
makavele: Beautiful 1 Like |
Re: Solar Energy, A Complement To FTA by zeestone99(m): 4:08am On Jul 16, 2018 |
Contact us for neat and proffesional installations of cctv, inverter and solar panels for organisations, home and offices... Call/whatapp 08117398294 for proffesional consult Email - Info@monzpowersolutions.com Instagram- @monzpowersolutions 1 Like
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Re: Solar Energy, A Complement To FTA by kiekie1(m): 8:26am On Jul 16, 2018 |
makavele: Lovely ! I can see them all ready for action ![]() |
Re: Solar Energy, A Complement To FTA by kiekie1(m): 8:27am On Jul 16, 2018 |
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Re: Solar Energy, A Complement To FTA by makavele: 8:41am On Jul 16, 2018 |
kiekie1: Very heavy on hand, but feels like paper when hanged, It's a beast though! |
Re: Solar Energy, A Complement To FTA by NiyiOmoIyunade(m): 9:12am On Jul 16, 2018 |
Great work boss. I have said it before and I'll say it again - your DIY skills are above par - many a professional installer would be unable to do such a neat job as you have done - all aesthetics to be sure but a key and desirable aspect of the job regardless. A few observations/questions if I may; 1) DC Bus bar placement - I hate to see the +ve and -ve so close together - think what could happen in the event of an inadvertent or malicious short!!! e.g you tightening something with a spanner and spanner slips - your entire battery bank would be dumped through the short with disastrous results. My reco is to saw that wooden base in half and relocate one terminal at least 2 feet away. 2) What are those two 13amp sockets on the wooden board meant to power or do? 3) White breaker like device - is that some sort of SPD or just a circuit breaker or combiner box? Please tell us more about it as I couldn't make out the details on it makavele: 5 Likes |
Re: Solar Energy, A Complement To FTA by ANEB(m): 9:49am On Jul 16, 2018 |
Thanks alot. That's really helpful richmon74: |
Re: Solar Energy, A Complement To FTA by makavele: 10:11am On Jul 16, 2018 |
NiyiOmoIyunade: Thank you sir! Do not fret for the busbars will be encased in 2 different compartments, i can access one terminal to screw and unscrew while the other remains closed. But after careful thought, i think i best follow your method, a very easy way out. The 13 amp sockets, just wait for it. You will see. The white box; just a fanciful changeover switch to replace the commonplace knife switch. i am beginning to fear for lack of space on the main board so as I continue to install, i will make deletions and/or modifications. Should round up today though. Thanks |
Re: Solar Energy, A Complement To FTA by makawhy201: 9:49pm On Jul 16, 2018 |
Oga Bright solar, what is the diff btw battery balancer Ha02 analogue and digital? BRIGHTSOLAR: |
Re: Solar Energy, A Complement To FTA by makawhy201: 10:21pm On Jul 16, 2018 |
A very neat job, DIY like a professional..i observed the breaker carries +ve of PV and Battery...is knife switch not better than the socket you introduce to break off d PV before putting ON the PV/batt breaker? Jst saying. I completed my PV upgrade last week but robot has been banning and deleting my reviews, dont knw why. makavele: |
Re: Solar Energy, A Complement To FTA by kiekie1(m): 8:26am On Jul 17, 2018 |
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Re: Solar Energy, A Complement To FTA by kiekie1(m): 8:27am On Jul 17, 2018 |
makavele: Good stuff ! Keep us updated Sir ![]() |
Re: Solar Energy, A Complement To FTA by CAROLYN19: 11:45am On Jul 17, 2018 |
Call us on 08066332919
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Re: Solar Energy, A Complement To FTA by Barezzi(m): 3:46pm On Jul 17, 2018 |
Nice one Makavele. Any updates? |
Re: Solar Energy, A Complement To FTA by makavele: 5:01pm On Jul 17, 2018 |
2 Likes |
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