Saipro's Posts
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 Satellite TV Technology › Re: Solar Energy, A Complement To FTA by Saipro(m): 1:06pm On Jul 19, 2017 |
SolnergyPower:That would be ideal but painfully, most irons are rated at 1,500W or over. A lot of them are 1,800W and beyond if they're steam irons. Mine is a Philips too and is rated 1,000W; I checked just now and I discovered it kicks in at 708W. I don't think one would find an iron at 100W. It would take too long to heat up and the the thermostat might never go off when in use. 2 Likes |
| Satellite TV Technology › Re: Solar Energy, A Complement To FTA by Saipro(m): 10:23am On Jul 19, 2017 |
kiekie1:Rubitec has their own brand which looks similar (noticeable differences). Simply fishing for something to match an unusual dump request. |
| Satellite TV Technology › Re: Solar Energy, A Complement To FTA by Saipro(m): 7:42am On Jul 19, 2017 |
Valto:Please let me know your source as I need one (same specs as yours) for a personal project. You could drop your number or reach me on WhatsApp on O8O239O23O5 |
| Satellite TV Technology › Re: Solar Energy, A Complement To FTA by Saipro(m): 7:32am On Jul 19, 2017 |
zeestone99:Is the 60A charger Variable voltage and variable Amps? |
| Satellite TV Technology › Re: Solar Energy, A Complement To FTA by Saipro(m): 7:54am On Jul 18, 2017 |
Anyone with a MustPower/PowerStar/Voltron 72V inverter? |
| Satellite TV Technology › Re: Solar Energy, A Complement To FTA by Saipro(m): 10:29am On Jul 17, 2017 |
battleaxe: pranil:It is considered good practice to have at least 100AH of battery bank per kW of PV array. One could always bend those rules based on personal constraints. If my only available area for mounting PV panels is my roof and it is slanted at 60o, there's no way that rule would apply to me.  |
| Satellite TV Technology › Re: Solar Energy, A Complement To FTA by Saipro(m): 10:23am On Jul 17, 2017 |
Saipro:One unit left |
| Satellite TV Technology › Re: Solar Energy, A Complement To FTA by Saipro(m): 7:39am On Jul 16, 2017 |
pranil:Sited in Ilorin. Will ship to most major cities in the country. Saipro:Can be sold individually or all three at a go. |
| Satellite TV Technology › Re: Solar Energy, A Complement To FTA by Saipro(m): 10:27am On Jul 15, 2017 |
I have 3 units of Trojan T105-RE (6V 225AH) batteries for sale. They're the same age (almost 2 years) and have never been cycled below 70% DoD. Reason for sale: battery bank upgrade Call O8O39612147 1 Like |
| Satellite TV Technology › Re: Solar Energy, A Complement To FTA by Saipro(m): 6:57am On Jul 03, 2017 |
bigrovar:Dust, causing light scatter/dispersion generally lowers the harvest during the dry season. And the stinging heat from the sun seems rather intense during that season. As you've rightly observed, both lower harvest during the dry season. My 3kW of panels peaks at 1.9kW instantaneous during the dry season but peaks at 2.6kW during the rains. There are brief spurts of nameplate value harvest. If you're predominantly "off-grid", there are never enough hours of sunlight in one day to charge your system to a 100% while not trying to exceed the typical C10 (13% charge rate (or FLA or 20% for AGM). Unless your PV array and battery bank are way oversized for your requirements (which I did). The trick is to have panels about 10 - 20% over the required to charge your system. I have 67%% higher. That way, you still get by on sunless days. On other days, opportunistic loads take up the slack. I never go below 30% DoD. Most days its between 3% and 10% now (NEPA has been behaving themselves lately). I know the demerits of shallow cylcles on flooded so I do a controlled mini-equalisation every now and then. 2 Likes |
| Satellite TV Technology › Re: Solar Energy, A Complement To FTA by Saipro(m): 2:33pm On Jul 01, 2017 |
chris81964:Still waiting to see if you're selling else I'll have to sell mine. |
| Satellite TV Technology › Re: Solar Energy, A Complement To FTA by Saipro(m): 4:37pm On Jun 28, 2017 |
GeorgeD1:I've checked many forklift battery sellers in the US over the years and they tend to advertise those batteries at their 100HR rating, God knows why. The Trojan IND17-6 sold by Trojan essentially belongs to that category. And Trojan is an American company. It's rated 925AH at its 20-HR rate. Trojan initially did that with its L16 batteries too before changing the electrolyte composition and increasing the thickness of the plates so the 100HR rating value became the 20HR rating value. I think that was done in response to negative criticism. BTW, the J200-RE and the J185P are essentially the same battery once more with a change in plate thickness and electrolyte composition. Well, they've added their patented SmartCarbon too, to increase performance under partial-state-of-charge. 1 Like |
| Satellite TV Technology › Re: Solar Energy, A Complement To FTA by Saipro(m): 4:24pm On Jun 28, 2017 |
efuro:I think the difference could be accounted for by the energy consumption of the inverter itself. It is an electrical appliance and will consume energy to drive its energy conversion circuitry, mostly via losses. |
| Satellite TV Technology › Re: Solar Energy, A Complement To FTA by Saipro(m): 12:19pm On Jun 22, 2017 |
Ferdiwar:All powered on at the same time or staged? Secondly, I'd rather we talk in terms of kW that kVA. This power factor of a thing isn't consistent across manufacturers and can prove a terrible bottleneck during system design. For the record, state the power rating of the water heaters. Having said that, 15kW should be more than adequate (most electrical devices are not supposed to be run higher than 80% of their rating, for lomg life, smooth operation, leeway for variations and surges, mystified power ratings by nameplates and a plethora of other reasons but most of all, personal safety). |
| Satellite TV Technology › Re: Solar Energy, A Complement To FTA by Saipro(m): 7:09am On Jun 21, 2017 |
bigbrovar:I learnt a few years ago to always copy my replies before posting them. Nasty surprises occur more frequently than one would expect (my first post today required 4 attempts to get it through). And it seems the site has a grudge with the Glo network. 1 Like |
| Satellite TV Technology › Re: Solar Energy, A Complement To FTA by Saipro(m): 7:04am On Jun 21, 2017*. Modified: 7:30am On Jun 21, 2017 |
Oshomo12:That's why RE is no joke. Takes lots of planning and serious consideration. Money doesn't always come easy but time is about the most expensive currency we humans deal in. You have to do a delicate balancing act between your needs and desires. My own recommendation: if you want more time out of your batteries, size them appropriately or get the right chemistry type. |
| Satellite TV Technology › Re: Solar Energy, A Complement To FTA by Saipro(m): 6:57am On Jun 21, 2017 |
pranil:I'll admit he does his homework quite well. When in doubt, he'll call people with real life application and experience to hear their views and inferences. He's good at what he does. And that's how things should be. 2 Likes |
| Satellite TV Technology › Re: Solar Energy, A Complement To FTA by Saipro(m): 7:32am On Jun 19, 2017 |
Oshomo12:Battery life at the DoD varies with manufacturing tech. Trojan has 4 different T-105 batteries with different cycle lives. US Batteries has an even greater variety 1 Like |
| Satellite TV Technology › Re: Free To Air Satellite Tv General Thread by Saipro(m): 9:37am On Jun 13, 2017 |
Saipro:Update: I've tracked it on both the 100cm and the 90cm dishes with about 2% difference between the two (in favour of the 90cm dish because of partial obstruction in line of sight on the 100cm dish). ALL the TPs for this region popped up. Reason for the update? The Fuji LNB actually works too with almost the same signal quality % as the Avenger. It does have a much harder time locking the signal though and you must be really slow when adjusting the dish for it's literally a "spot" signal with the Fuji. If you have an SRT 4950 or SRT 4953, it might simplify things a lot. In addition, it won't give green signal bars with Startimes TPs despite displaying as full (but red) signal bars. Gben102:Imported mine. olatayoalabis:You're right, pole-mounted dishes are generally easier to track with. For the record the two I've been toying with are both pole-mounted |
| Satellite TV Technology › Re: Free To Air Satellite Tv General Thread by Saipro(m): 12:48pm On Jun 12, 2017 |
Gben102:I'm in Ilorin. Tried for 2 nights without succes (using the red and white Fuji LNB. I switched to inverto black (quad) and I got the signal. I used the Avenger (twin) and the signal jumped to 63% on my 90cm dish, within 5 minutes of trying. Will return to my 1m dish tonight and try the Avenger on it. |
| Satellite TV Technology › Re: Solar Energy, A Complement To FTA by Saipro(m): 7:12am On Jun 12, 2017 |
chris81964:I need to get me one of those! Kindly recommend a reliable (trusted by you) contact on these pages. I'm sure many others on this forum are already drooling at the prospect of an energy efficient + reliable freezer 1 Like |
| Satellite TV Technology › Re: Solar Energy, A Complement To FTA by Saipro(m): 7:09am On Jun 12, 2017 |
dapsyra:The thing is all burnt up! Looks like a sustained surge (if such a thing exists/grid overvoltage). Or a direct hit by lightning on a line very close to you. You're one lucky man indeed! Party time!!! mank1234:You're right. AVRs won't protect against surges and brownouts. A fuse has a better chance (if the surge current is high enough; rarely ever so). In addition, there are instances the surge is so powerful, it freezes the AVR in "on" mode thus transmitting the entire surge/over-voltage through. I have an 2kVA AVR which is no more than than a mere 10V booster as a result of that. |
| Satellite TV Technology › Re: Solar Energy, A Complement To FTA by Saipro(m): 9:27am On Jun 11, 2017 |
Dam5reey:PWM doesn't really do energy conversion. That's why losses might be great if there's a panel voltage:battery bank mismatch. And if they match too closely (to ensure max efficiency), you'd get pitiful charge on cloudy days - unless your bank is quite depleted (not good). Also, as others have mentioned, unless you have your panels and PWM controller sitting directly above your battery bank, your losses might be significant. And it's a waste of good copper buying cables as thick as your wrist, even if you could afford them. 2 Likes |
| Satellite TV Technology › Re: Solar Energy, A Complement To FTA by Saipro(m): 9:22am On Jun 11, 2017 |
DMerciful:I'm afraid DMerciful is quite right. Oshomo12:You would have noticed a similar difference even with professional roof mounts. Mine have absolutely nothing underneath them and I had the same experience as you had. What you did was bring the temperature down closer to the lab temperature of 25oC. I had posted a year or two ago the impact a brief rain has on them, in addition to the bright "flare" immediately after a midday shower. The margin will also reduce as your panels age and their efficiency drops. Believe me however when I tell you, you can have 80% losses from poor angling. In an experiment I conducted under non-standard conditions (but otherwise reproducible), the difference between placing them flat and angling them 30o due South is about 30%. Give it a try on a clear and sunny day, around midday. Mine are angled at 8o due South (they accumulate dust faster and pool water when placed flat). |
| Satellite TV Technology › Re: Solar Energy, A Complement To FTA by Saipro(m): 7:45am On Jun 07, 2017*. Modified: 2:31pm On Jun 07, 2017 |
earthrealm:Replying in the order of your observations 1. I agree the logs could be improved. One of the reasons I converted it to my backup CC 2. Your observations are accurate. The SOC algorithm is actually quite accurate too. It took about a month of careful (translated as almost hourly) monitoring to decipher how it does it. First of all, its calculations are based on the values you set for absorb as upper limit and low voltage disconnect as lower limit. Secondly, the percentages are calculated based on those values during typical operation. However, if you successfully complete an absorb charge, the upper limit is recalibrated to the float voltage while the lower limit is recalibrated to your rebulk (boost volt reconnect) voltage. The moment you enter rebulk phase, the calibration drops the lower limit back to low voltage disconnect thus, most times, you'd hardly see it display above 70% unless you hardly ever discharge it below you rebulk voltage. mcTrinity:That illustration above explains why you might see 95% at 47V (absorb phase) but 100% at 46V (float phase) DMerciful:Not to rain on your parade but I hope you're aware the CC does slightly overestimates what it does. It however does a good job nonetheless. Opening it up, it appears to have a very similar DC-to-DC conversion system like the MorningStar MPPT CCs. Very efficient. Its Achille's heel (like its prototype, the MorningStar) is in the slower sweep and recalculation algorithm. Outback, Magnum, Midnite and Xantrex MPPT use similar sweep algorithms (very efficient) but have greater conversits you based on your requirements, constraints and budget. I chose Midnite for personal reasons. I however have a technical reason for porting to Midnite : cloud cover is very fickle where I reside which poses a problem for the slower scanning iTracer. In addition, under similar test conditions, the Outback and Midnite CC charge FLA batteries better. This is a purely personal set of tests run over a period of months. Do not use my inference for your own system design. I accept no culpability if your system detonates.  |
| Satellite TV Technology › Re: Solar Energy, A Complement To FTA by Saipro(m): 7:43am On Jun 02, 2017 |
jukeblam:Could I have your phone number? Mine is O8O39612147 |
| Satellite TV Technology › Re: Solar Energy, A Complement To FTA by Saipro(m): 7:41am On Jun 02, 2017 |
pranil:Quite hilarious yet so true! |
| Satellite TV Technology › Re: Solar Energy, A Complement To FTA by Saipro(m): 3:24am On May 31, 2017 |
jukeblam:If you can keep them on float charge, you could in theory maintain them for the rest of their service life in that state with minimal impact on their capacity. If not, you're perhaps better off disposing of them as they would gradually lose capacity over time (faster here in the tropics due to higher ambient temperatures). |
| Satellite TV Technology › Re: Solar Energy, A Complement To FTA by Saipro(m): 4:20pm On May 29, 2017 |
Seun:Firefox, IE, 3 different opera versions and Chrome. Sorry for the multiple posts. Was attempting to post concurrently from different browsers on on my laptop. The previous posts were from IE and Firefox. This is coming from Chrome. Glo network yesterday and today. MTN day before yesterday. BTW, I am reading posts on this forum via the the reply (newpost) page. Can't open regular pages. Manually doing quotes too PS: I hope my opening different browsers won't overload the connections to your servers lest it appears as a DoS attack. No other way to assure getting through. |
| Satellite TV Technology › Re: Solar Energy, A Complement To FTA by Saipro(m): 4:05pm On May 29, 2017 |
Saipro: |
| Satellite TV Technology › Re: Solar Energy, A Complement To FTA by Saipro(m): 3:58pm On May 29, 2017 |
I have been having immense problems replying posts as well as opening some nairaland forums. I have had to device some workarounds. Even quoting posts now requires manual tagging. Anyone else having these issues? Other Web pages/sites load seemlessly. |
| Satellite TV Technology › Re: Solar Energy, A Complement To FTA by Saipro(m): 3:57pm On May 29, 2017 |
I have been having immense problems replying posts as well as opening some nairaland forums. I have had to device some workarounds. Even quoting posts now requires manual tagging. Anyone else having these issues? |
Thats how a battery should be sold. 
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