Solar Energy, A Complement To FTA - Satellite TV Technology (247) - Nairaland
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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 earthrealm(m): 1:15pm On May 22, 2017 |
so finally located my watt meter and tested my thermocool 350L double door fridge with a 130w compressor energy name plate, clocked in at 320w on startup and later settled at 195w after about 7mins hmmmmmmm. would monitor and see if it reduces further after 3 to 4hrs. @all, between haier thermoccol and LG, which do you think makes a relaible and more efficient freezer?. was thinking HT, but someone said LG produces more than 40% of all refrigration compressors worldwide, b4 i though LG was more of an electronics tv/radio/dvd kind of company , that they lacked expertise on refrigration 1 Like
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| Re: Solar Energy, A Complement To FTA by battleaxe: 2:53pm On May 22, 2017 |
@ house Many thanks for your "plentiful" suggestions on how to manage solar versus utility supply to single loads earlier. I am back for more expert suggestions and opinions. See a snapshot of my solar install..... a) With this, how can I truly ensure a switch from PV to PHCN supply after my timer cuts out on a single load e.g. fridge as below? I would like to retain inverter supply to all loads in the house (I want to have the flexibility to choose to switch say an AC on during peak sunshine hours) so do not want to split my loads to essential and non-essential. At the same time, not sure how to use the contactor/timer to swap since both supplies are on the DB. Abeg, helepu! b) The more I look at the below, the more I think I'm missing something or doing something wrong. Your comments welcomed please. Thanks|! |
| Re: Solar Energy, A Complement To FTA by Barezzi(m): 3:05pm On May 22, 2017 |
battleaxe: I think this may address your present dilemma. No DB split necessary, but you purchase for each circuit you wanna control. pranil: |
| Re: Solar Energy, A Complement To FTA by battleaxe: 3:40pm On May 22, 2017 |
@Barezzi... Thanks. Maybe I'm missing something.... or dull! If I use this contactor plus timer, how do I get the contactor/timer to select between Inverter supply and PHCN, seeing as both are fed into the same DB? No vex o... just help me break it down small small. Thanks! |
| Re: Solar Energy, A Complement To FTA by pranil(m): 4:12pm On May 22, 2017 |
Contrary to the popular practice of using a changover cwitch between inverter and NEPA the actual use of Inverter is different than a generator. The NEPA goes to inverter and then flows out to your loads ( The inverter senses availability of NEPA and automatically connects loads to NEPA) In your case you have to split the DB wiring to possible inverter loads and non inevrter loads ( ask the electrictian if you cannot do it should be fsairly easy to modify the busbar or remove the looping) So in your case all house loads upto PEAK loading of inverter ( normally double the rating of nominal check also the bypass relay rating of inverter ) can be connected to inverter . The MCB contactor coil will be fed from NEPA with a timer . The moment NEPA fails the contractors drop keeping only essential loads like light and DSTV /TC /Computer to the output of ineverter . ( identical to a large UPS for your computer) now based on your judgement you can manually bring some loads on or off based on your needs. The beauty of the contactor I suggested is it self resets the position on every changeover of NEPA no no risk of loading inverter on the next failure even if you had kept it on For example if you leave the Air Con MCB in ON ( manual)positiontion and forget to Put it to Auto next time NEPA fails it will still switch off It has automatic returning to AUTO position on every coil energization See marked in the Blue If you want further automation you can use 4P MCN ( 2 NO and 2 NC) NO for NEPA and NC for inverter automatically changing to inverter based on SOC or time of day
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| Re: Solar Energy, A Complement To FTA by Justin288: 7:11pm On May 22, 2017 |
Thanks @kiekie1 for the shipment of the batteries down to Port Harcourt. All the batteries tested ok. 1 Like
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| Re: Solar Energy, A Complement To FTA by chris81964(m): 7:50pm On May 22, 2017 |
bodeface:Send an email to ksolaiya@atlanticwastepower.com tell him Dr Solar sent you. What load are you running on the inverter. |
| Re: Solar Energy, A Complement To FTA by earthrealm(m): 8:29pm On May 22, 2017 |
Justin288: am interested in this your batt tester, is it hand held or inbuilt in the inverter? 1 Like |
| Re: Solar Energy, A Complement To FTA by idsolar(m): 9:00pm On May 22, 2017 |
@justin288 this batr tester how do i get it. interested 1 Like |
| Re: Solar Energy, A Complement To FTA by Justin288: 9:37pm On May 22, 2017 |
It's on Aliexpress, search for battery analyser on Aliexpress. |
| Re: Solar Energy, A Complement To FTA by earthrealm(m): 10:11pm On May 22, 2017 |
Justin288:has it ever given a bad report on any battery?..i no pls test a known bad batt and confirm. pls post a direct link of the one you bought, searched and am seeing watt meter, and not analyser edit: seen. https://www.aliexpress.com/item/FOXWELL-BT100-12V-Car-Battery-Tester-for-Flooded-AGM-GEL-Original-BT100-12-Volt-Digital-All/32696021633.html?spm=2114.01010208.3.43.jfLJvP&ws_ab_test=searchweb0_0,searchweb201602_1_10152_10065_10151_10068_10136_10137_10157_10060_10138_10155_10062_10156_437_10154_5010020_10056_10055_10054_10059_303_100030_100031_10099_100029_10103_100028_10102_10096_10147_10052_10053_10107_10050_10142_10051_10174_10084_10083_5190020_10080_10082_10081_10110_519_10111_10112_10113_10114_10183_10182_10185_10078_10079_10073_10123_142,searchweb201603_4,ppcSwitch_5&btsid=080b64fa-46ec-4036-af78-e93155066015&algo_expid=a44a2020-e501-4594-8d5f-95cc0d30f986-5&algo_pvid=a44a2020-e501-4594-8d5f-95cc0d30f986 but pls confirm about testing it on a known bad battery |
| Re: Solar Energy, A Complement To FTA by earthrealm(m): 10:17pm On May 22, 2017 |
Ferdiwar: nope, the link is more for light control not for a 5speed fan motor, see pics of the control unit
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| Re: Solar Energy, A Complement To FTA by earthrealm(m): 10:33pm On May 22, 2017 |
earthrealm: |
| Re: Solar Energy, A Complement To FTA by Justin288: 10:40pm On May 22, 2017 |
Yes it gave bad reports on defective batteries. what am looking at the internal resistance of the battery, if it's close to that specified by the battery manufacturer. earthrealm: 2 Likes |
| Re: Solar Energy, A Complement To FTA by mcTrinity(m): 11:03pm On May 22, 2017 |
Testing |
| Re: Solar Energy, A Complement To FTA by efuro(m): 4:43am On May 23, 2017 |
@ Chris (Dr. Solar)one chance batteries 1-4 is quite interesting. keep up the good work. |
| Re: Solar Energy, A Complement To FTA by bigrovar(m): 7:56am On May 23, 2017 |
Has anyone here who uses any of the Axpert series of Inverters be it ipowerplus or Gennex been able to ascertain the idle consumption of these units? |
| Re: Solar Energy, A Complement To FTA by Barezzi(m): 8:28am On May 23, 2017 |
bigrovar:Egbon, there seem to be a dearth of information concerning the ipowerplus. I have searched everywhere, nothing tangible. Even users are afraid to share their experiences... Lol Abeg if anyone has any info, please share. |
| Re: Solar Energy, A Complement To FTA by kiekie1(m): 8:54am On May 23, 2017 |
Barezzi: You are right .. I have a client who used same ipower 5kva 48v and complained a lot after working on the FETs on 3 occasions .. He concluded its not really a pure sinewave power inverter since he keeps having issue's using submersible water pump, aircon unit, microwave etc on it .. He also complained the inbuilt solar controller wasn't as efficient as external mppt unit . He simply upgraded the inverter to a transformer based pure sinewave, 60a mppt, more units of 300w solar modules as he is almost offgrid and needs some appliances running whilst mppt is absorbing-floating ... |
| Re: Solar Energy, A Complement To FTA by kiekie1(m): 9:02am On May 23, 2017 |
Justin288: Thanks for your patronage & referral ... Remain blessed ! |
| Re: Solar Energy, A Complement To FTA by mcTrinity(m): 9:17am On May 23, 2017 |
Finally, after 2weeks plus, I finished reading 246pages.lol.. No be small thing o! Right now I feel like opening a Solar training center... lol. the knowledge here is so vast. Abunufiu, Saipro, Bigrovar, Dunka, JUO, Chris81964, Efuro... you guys are just too good. the more you help others, the more God will send help to you not forgetting the great scholar and prof himself, Dmerciful. did you study Solar Engineering  lol. I remove my cap for you sirand the host of others too who has contributed immensely to the development of this "community", God bless you all GeorgeD1... hmmmm...the founder, patron, and pillar of this great forum and the great great great father of all the Greeners here. men, you were born to lead. A great leader in the making. you are 2derdul!!! God continue to take you higher ... I remove my head for you... lolz. before I even finished reading the pages, I've done modifications to most of my clients solar system and the turn around was flabbergasting. Later I will be sharing one significant turn around in one of my clients solar system, based on what I learnt here. You guys should keep up the good works, knowing fully well that God rewards every good work Thanks to you all and remain blessed 12 Likes |
| Re: Solar Energy, A Complement To FTA by dezo(m): 11:53am On May 23, 2017 |
BOTH SOLD Hello yall Used microtek inverter 96v 5.5kva. Price 200k. Holla if interested. 07065316182 Thanks Brand new abb transformer. 100kva 33. Price 1million. Thanks BOTH SOLD THANKS 1 Like
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| Re: Solar Energy, A Complement To FTA by pranil(m): 12:50pm On May 23, 2017 |
bigrovar: I have four of them . Normally 35 watts running on Battery on Avrage can reach upto 65 Watt on full load . See the datasheet And these are actual measured values I have been running these inverters for last 5 years without any major issues and when it comes to price point nothing in market can beat them . Anybody who has questions on these can feel free to ask them. .
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| Re: Solar Energy, A Complement To FTA by battleaxe: 12:54pm On May 23, 2017 |
Barezzi: From the datasheet...... For 5kVA: No load power consumption <50W Saving mode power consumption <15W For 1-4kVA: No load power consumption <25W Saving Mode power consumption <10W From various reading on solar groups online, the above seems to be the range they mention they experience. |
| Re: Solar Energy, A Complement To FTA by Barezzi(m): 12:58pm On May 23, 2017 |
Pranil, 1. What's the maximum PV input DC voltage 2. Number of mppt inputs 3. The monitoring software you use? Thanks Battleaxe... |
| Re: Solar Energy, A Complement To FTA by pranil(m): 1:09pm On May 23, 2017 |
Barezzi: There is plenty of information just ask whatever you need . A very little known fact is these inverters ( both Ipower and Genex and other not so well known) are made by a single company called Voltronic Power - Sold in South Africa as Axepert and in Europe /Latin America as MPP solar The company is as big as APC and very well known brand having more than 15 % global market of Hybrid inverters . https://www.youtube.com/watch?v=YCXTHiurLbc It has a loyal following in many countries and fan base . Personally I am using them in parallel 5 KVA x 2 to even run 2 AC's and my washing machine without any major issues . The failures you see in the market is because of bad installers/Design hence Ipower insists on complete system. There limitation is 60 V DC and nominal failures are in capacitors . This only happens when you use a charge controller than their own which tries to equalise batteries or the ones called battery desulphators. I learned this the hard way - This has been corrected in new models after 2015. Also there are many models looking identical depending on the importer ( they have identical models with PWM/MPPT , ac Charge capcity 50 Amp , 60 AMp or even 80 Amp). Like all systems you should use your design tools referring to datasheet other components to build a correct system They even now have a 1 .00 power factor inverter ( 5 KVA inverter does 5 KW load) and max 140 Amp charging ( 80 from Solar and 60 from Grid). All this in 700 USD is not possible in any inverter . The price and size is kept low by moving teh AC and DC protections outside the inverter hence the need to correctly design the system for more info see - http://www.voltronicpower.com/ OR http://www.mppsolar.com/ Wbr Anil My system for info ( all main inverters are Ipower) Self Consumption DC coupled Whole House system 10 KVA , 400 AH , 5600Wp with backup 7.5 Diesel Generator 5 KVA x 2 Voltronic ( Axexpert) in parallel- , 1 x 5 KVA Voltronic standalone as charge controller and charger with remote panel 8 x 315 Wp- Yahi Mono on Inverter 1 , 6 x 250 Wp Ritek ,on Inverter 2 , 4 x 255 Wp on Inverter 3 , 200 W x 3 on Make skye Blue MPPT midnight solar PV junction and 8 x 200 AH 48 V Flooded lead Acid , BMV 702 , 450 AMP DC bus with 250 and 125 Amp fuses on +ve -ve and midpoint from Blue Sea systems with 200 Amp DC breaker Powergen Self wired ATS with 7.5 KVA 3 ph Generator - starts based time of day and SOC to offset the battery load emoncms ( work in progress) - http://emoncms.org/ghatikar & PVOUT https://pvoutput.org/list.jsp?sid=51733, Inveters montioring via ICC and Lucibus Intel NCU PC , Ra Pi 3 , IO gear wireless USB , Current cost ,UK monitoring Total power and critical loads and logging to Measureit Awaiting delivery - Powergen, Italy 3 PH 48 V 60 Amp Battery charger 3 Likes |
| Re: Solar Energy, A Complement To FTA by battleaxe: 1:17pm On May 23, 2017 |
Hi Pranil, Curious as to how you sized your fuses between your batteries and inverter. I thought with 8 nos. of 200Ah, 12V batteries, making a 48V, 400Ah battery bank, that you would need a bigger fuse? Also, there are several schools of thought on having a fuse on the negative. I notice you have a fuse though halved. May I ask why? @Barezzi Max PV Array Open Circuit Voltage for the 5kVA is I think 145V DC. |
| Re: Solar Energy, A Complement To FTA by earthrealm(m): 1:23pm On May 23, 2017 |
battleaxe: my 4kva mustpower has <25w sticker, but someone has confirmed that this is a big lie that it consumes about 100w, using a watt meter, so am a bit sceptical of all these oem data |
| Re: Solar Energy, A Complement To FTA by battleaxe: 1:38pm On May 23, 2017 |
earthrealm: @pranil has 4 units and he just posted his consumption a few posts above. His feedback corresponds with what I see on most faceless forums like these where people share their experiences. I believe the figures. |
| Re: Solar Energy, A Complement To FTA by emmaniche: 1:56pm On May 23, 2017 |
House Please help a Noobie in Green Energy. Please what are the parameters that can be obtained from a charge controller setup? which is better MPTT or PWM charge controllers? Thanks very much and God bless the house.... |
| Re: Solar Energy, A Complement To FTA by earthrealm(m): 1:57pm On May 23, 2017 |
battleaxe: k thought pranil was talking about axpert/ipowerplus hybrid inverters |
| Re: Solar Energy, A Complement To FTA by pranil(m): 2:31pm On May 23, 2017 |
Barezzi: |
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