| Satellite TV Technology / Re: Solar Energy, A Complement To FTA by dejidotun2000(m): 6:34am On Mar 21|
Thanks for the insights
Depends on which FETs blew up. Many factors can make them blow apart from the ones you already suspect - overload because a too large load was not isolated off the inverter, short circuit due to wiring errors or mains/Gen backfeed e.t.c e.t.c
All I was trying to say is that he should do the minimum to establish the real root cause before he starts spending money to solve the wrong problem e.g use a multimeter to read the Gen voltage and see if it is too high or normal range. If the Gen voltage with no load on it is within 200 to 230volts AC then it definitely was not high voltage that spoilt the inverter but rather perhaps a wiring issue or short circuit or backfeed.
Wiring issues or short circuits may be easily identified by placing a suitable sized AC circuit breaker (MCB) on the inverter output - if the breaker trips when changing over from inverting to mains/Gen then you know you have a wiring problem or shortcircuit or overload problem to deal with.
| Satellite TV Technology / Re: Solar Energy, A Complement To FTA by dejidotun2000(m): 9:50pm On Mar 20|
Many thanks sir.
We are not certain that the FETs were blown up by the generator the first time and high mains voltage the second time.
What else might have caused the FETs to blow up ?
If he is sure that the cause of the FETs blowing is actually 'high mains voltage' then he could buy a voltage regulation device like the Sollatek AVS 30 (attached pic). It has things you can turn inside it (I bow to my Oga Makavele ) to adjust both the low and high voltage cutoff points. The device costs 8,500 for the 'fake' and about 17k for a better version sold at 'Game stores'
| Satellite TV Technology / Re: Solar Energy, A Complement To FTA by dejidotun2000(m): 7:38pm On Mar 20|
What model and rating would you recommend for a 1.5kva inverter.
Let him install a good quality servo stabilizer between the mains/gen and inverter.
| Satellite TV Technology / Re: Solar Energy, A Complement To FTA by dejidotun2000(m): 7:01pm On Mar 20|
I need your help on this one.
A friend's Genus 1.5kva proton Q inverter spectacularly blew up FETs in December.
he had put on his 3.5kva generator (which he had previously used several times to charge the inverter batteries) and heard multiple explosions and saw the proverbial smoke.
The inverter was repaired and recently, the FETs blew up again. He believes it was a result of high voltage from his public utility transformer because he changed from a phase that had a low voltage to another phase before he heard the FETs blowing up.
please what can be done to prevent the incident from happening again ?
| Business / Re: If You Are Uber Partner In Lagos, Please Share Your Experience Here by dejidotun2000(m): 9:47pm On Mar 06|
Between a 2005 Honda civic and a 2008 Kia Rio, which is better for e-hailing biz over the long haul.
Thanks for your answers.
| Satellite TV Technology / Re: Solar Energy, A Complement To FTA by dejidotun2000(m): 12:02pm On Feb 24|
It depends on your load.
If you panels are supplying 4A @ 24V, that's 96Watts.
Let's say your load is 100W, the panels will supply the 96W and the extra 4W will be taken from your battery.
In essence, your battery isn't charging.
Note that the self consumption of your inverter wasn't factored into the analysis.
Hello chief niyi and Dmerciful
It rained heavily last night and the effect is seen on the sun right now, very poor now in Lagos
My Panel is sending 3-4Amp to the batteries.
I want to use the inverter now and still allow the Panels to continue to charge. My question is if I load the batteries now, will the load be on the batteries by draining them or it would be like normal electricity that charges batteries and also supplies power without depleting my batteries?
I hope you get my question
| Business / Re: If You Are Uber Partner In Lagos, Please Share Your Experience Here by dejidotun2000(m): 8:19pm On Feb 19|
How may I contact you ?
A friend of mine gat a car he wants to sell, a 2006 manual Peugeot. If you are interested do let me know. Price 470k.
| Satellite TV Technology / Re: Solar Energy, A Complement To FTA by dejidotun2000(m): 10:02pm On Feb 05|
what's your average daily harvest and maximum instantaneous generation in recent times.
I will go with MyHome anyday. I had six 150w mono from Frankie & still firing almost 2yrs counting. Very reliable beast.
| Business / Re: If You Are Uber Partner In Lagos, Please Share Your Experience Here by dejidotun2000(m): 8:06pm On Jan 28|
I will gladly insure them for you....
I want to insure my newly bought bags of garri and rice
| Satellite TV Technology / Re: Solar Energy, A Complement To FTA by dejidotun2000(m): 9:56pm On Jan 14|
You need solar charge controller, solar panels, solar panel mounting kit (if necessary), cables, and DC breakers.
I currently have a 1.5KVA 24volts inverter
2 200amps batteries.
I want to add solar array.
Please Can someone tell me what I need if I want to add solar.
| Autos / Re: ASK GAZZUZZ by dejidotun2000(m): 7:59am On Jan 13|
Good morning Gazzuz.
Do you have any experience with Mitsubishi GDI engines, specifically the 4G93.
A friend owns one that seems to have a failed high pressure pump( fuel pressure as obtained from a diagnostic tool drops from 4.7mpa to 0 and engine stalls whenever you rapidly rev the engine).
| Business / Re: If You Are Uber Partner In Lagos, Please Share Your Experience Here by dejidotun2000(m): 12:11pm On Jan 12|
capture a lion for me too na
Lion 1 left For lagos this morning.
;Dcapture a lion for me too na
Lion 1 left For lagos this morning.
| Technology Market / Re: USA to Nigeria Shopping/Shipping@$4/Lbs,Amazon Purchase@315/$ ,No hidden charges by dejidotun2000(m): 12:01pm On Jan 09|
let's do it !
How do I pay and how long does shipping take.
Good morning trust your day is going well. pls find your quote below
7.67$ = 2454.4
shipping to Lagos 1000
| Technology Market / Re: USA to Nigeria Shopping/Shipping@$4/Lbs,Amazon Purchase@315/$ ,No hidden charges by dejidotun2000(m): 11:22am On Jan 09|
| Business / Re: If You Are Uber Partner In Lagos, Please Share Your Experience Here by dejidotun2000(m): 4:37pm On Jan 02|
so the post can't be used against you abi
All the way from oraukwu in idemili north anambra state, i am wishing u all a happy new year and a better uberfied and taxified new year. I want to thank whoever started this thread. Those of us that took time to start reading from page 1 will understand. Thnak romeo for d extra ginger and d 150k challange and ur refusal to accept defeat, ogunvic for employing my friend in your company. Gazuz for refusing to give me apppointment to fix my car. To people like dru3 etc that carry a lot of hate around, other notable members like big ass, enyinne, i needspeed star, blacylola, etc. Please, no more quarels. Finally chillex, whoever u are. I am coming for u this 2018. 200k challange every week. *Note that this post was inspired by some palm wine and roasted yam*. Thanks
| Satellite TV Technology / Re: Solar Energy, A Complement To FTA by dejidotun2000(m): 7:55pm On Dec 18, 2017 |
| Satellite TV Technology / Re: Solar Energy, A Complement To FTA by dejidotun2000(m): 6:11pm On Dec 18, 2017 |
Many thanks sir.
Can you recommend a competent technician to handle the repair ?
Sh!t happens and electronics can just go kaboom for no good reason.
But you need to give it to a seasoned electrician , , ,
Do not attempt to change the Fets on your own . . because in most causes;
the shorted Fets creates a short inside the gates . . and this damages
the circuitry that drives the gates . . .
Change the all mosfets and connect the inverter;
and you will hear another kaboom ; back to square one.
N.B.: Be careful when you handle circuit boards that contain capacitors; they can store power high enough
to deliver a fatal electric shock; even when they are powered off (especially when the unit was just disconnected; without discharging
| Satellite TV Technology / Re: Solar Energy, A Complement To FTA by dejidotun2000(m): 3:37pm On Dec 18, 2017 |
The inverter was not being backfed. It was installed about 3 years ago and no modifications have been made to the wiring/connection since then.
Could you post a connection diagram,
that would help to determine if you were mistakenly back feeding the inverter.
The inverter being the only load on generator is not the cause of mos tube damage.
| Satellite TV Technology / Re: Solar Energy, A Complement To FTA by dejidotun2000(m): 9:00am On Dec 18, 2017 |
Good morning house.
A friend put on his 5kva generator and switched on the change-over switch with the inverter being the only load on the generator.
He heard spectacular explosions and smoke from the inverter.
About 6 FETs are obviously damaged, the rest are also shorted.
Did the damage have anything to do with the fact that the inverter was the only load on the generator ?
Will replacing all the FETs bring the inverter back to life/Could any other components have been damaged besides the FETs ?
| Business / Re: If You Are Uber Partner In Lagos, Please Share Your Experience Here by dejidotun2000(m): 1:09pm On Nov 26, 2017 |
This is funny too, "turkey yanch comment" hehehe
I have trained drivers on this thread on how to make over 100k weekly. and they have been doing it.... Keep your turkey yansh comment to yourself. no one needs it.
| Nairaland / General / Re: How To Change My Username by dejidotun2000(m): 8:27am On Nov 24, 2017 |
Please I'll appreciate it if you change my username from dejidotun2000 to Firefly.
| Satellite TV Technology / Re: Solar Energy, A Complement To FTA by dejidotun2000(m): 9:47pm On Nov 23, 2017 |
Data sheets give you values other than at STC.
Cos those are factory-based under STC which don't apply to real life . . .
Take for example, a battery spec sheet might tell you to charge your battery to 14.1V for optimum performance
And you might be living where you do not have enough sun-hours to float your battery.
What do you do? Increase bulk charge to say, 14.6 and let it smoke . . .
** and for those who might want to argue, it's called "max smoke" in the solar world & perfectly safe***
By the time the sun goes down; you would be closer to 100% SOC
If you seem to be smoking too much, reduce to 14.4 and try again . .
no battery spec sheet will tell you this.
so forget what the spec sheets say, they are theoritical and meant as guides
throw it away, and face real conditions applicable to you and you only.
| Autos / Re: ASK GAZZUZZ by dejidotun2000(m): 9:31pm On Nov 23, 2017 |
I loooooove your sense of humour. Thanks
let me speak in parables.
EW10 engine, 100,000
Elantra 1.8l engine 600,000
| Satellite TV Technology / Re: Solar Energy, A Complement To FTA by dejidotun2000(m): 9:08pm On Nov 23, 2017 |
And why would they do that?
Mankinde, let me rest and if you're an adept reader;
you would know that most seasoned installers will tell you to throw away the battery spec sheet.
| Autos / Re: ASK GAZZUZZ by dejidotun2000(m): 5:40pm On Nov 23, 2017 |
GAZZUZZ, please which is easier to maintain between a 407 with EW10 engine and an 06 Elantra with the 1.8l engine?
| Satellite TV Technology / Re: Solar Energy, A Complement To FTA by dejidotun2000(m): 10:08pm On Nov 18, 2017 |
I own a 1kva and a 3kva ipowerplus(Axpert) inverter. Both have tripped the Dc input breaker at least twice without any damage.
I remember Oga Chris mentioned some Axpert inverters he had in production which failed when the end-users flipped the battery breaker while the inverter was 'inverting'.
I also had a Zinox (similar to Axpert) which died once after the breaker tripped due to an overload condition - it also had an internal component failure at the exact same moment so no way to know if the battery breaker tripping caused the internal component failure or if the internal short was what tripped the battery breaker
| Business / Re: If You Are Uber Partner In Lagos, Please Share Your Experience Here by dejidotun2000(m): 6:05pm On Nov 16, 2017 |
Hello guys, pls inbox ur number if ure interested in joining Taxify/uber partners whatsapp group. 08022133595
| Autos / Re: ASK GAZZUZZ by dejidotun2000(m): 7:06am On Nov 16, 2017 |
[quote author=sabaka post=62419189]
Check out mayor2013 very gud guy[/quote
| Satellite TV Technology / Re: Solar Energy, A Complement To FTA by dejidotun2000(m): 11:19am On Nov 15, 2017 |
Thanks. That was a very helpful answer. Thanks to Kiekie too.
All lead acid batteries benefit from desulfation because inherent to their design, they will always suffer from positive grid/plate corrosion and sulfation during the discharge and recharge process - in fact the very act of recharging a depleted lead acid battey implies desulfation.
The question then is how to do it right for an AGM/SMF battery since you cannot afford an overcharge (controlled or otherwise) leading to gassing and the battery drying up inside - for flooded/wet-cell batteries you would have simply replaced any lost fluids with distilled water after your equalization/controlled overcharge.
First things first you want to make sure your batteries get a full charge daily/regularly and are never left depleted for more than a week to get maximum mileage from them.
To desulfate/recover an AGM/SMF battery, first eliminate the misconception that you can do it with the battery bank hooked up in series e.g 24v,36v,48v and so on - each individual 12v battery (rarely you could have 6v AGM/SMF batteries in this part of the world) must be isolated and recharged to full charge individually > then load tested to ascertain capacity and > then recharged again to full charge > then you select batteries with similar capacity and hook them back up in series and connect to your inverter again and enjoy renewed performance
You could take a shortcut and buy a 12v inverter - e.g IcellPower (JUO) or Mustpower (Zeestone/KieKie) or any solid brand of your choice and hookup your batteries in parallel and charge fully - this method ensures you still get inverter backup/uniterrupted service while you are performing the full charge/desulfation process - you will need access to uninterrupted power during the period till you complete the charge cycle - yet, the best method is to isolate each individual battery and give it the treatment - full charge - load test - full recharge - group similar capacity batteries and put them back in service.
There is one last method where you can keep your series configuration and clap on a 12v charger to each individual battery and charge fully turn by turn given you have uninterrupted access to power to complete the charging process - needless to say you need to know what you are doing in this scenario and I will not dwell on it further.
To safely equalize/desulfate AGM/SMFs, you will need a smart charger capable of cutting off at 14.8volts (maximum safe upper limit) or lower as per manufacturer specs for the battery - anything over 14.8v per 12v battery you will likely gas the battery with no easy way to replace lost fluids in the AGM/SMF battery. I use a cheapo chinese charger called 'Suoer' for this purpose - it sells under 20k and cuts off reliably at 14.8volts.
You can also buy a battery desulfator e.g PowerPulse or BLS (Battery Life Saver) to assist in keeping your batteries healthy. I warrant to you though that in 8 years of using these desulfator devices I AM STILL UNDECIDED if they actually work!!! Sometimes they seem to perform a miracle and sometimes they appear useless - I know though that I will not buy any new ones apart from the ones I already have.
All in all, a very long reply to a very short question - I hope it is of help
| Autos / Re: ASK GAZZUZZ by dejidotun2000(m): 6:21am On Nov 15, 2017 |
About injector nozzle cleaning...... Do you know know anyone who does it professionally (ultrasonic cleaning and flow testing)
It is complicated, The database is quite clumsy.
If you want to re-reister an already registered vehicle, the program will notify you of a conflict of VIN, you cvan search by reg number and get full info, but searching Via vin (option exists) never seems to work.
| Autos / Re: VERIFY YOUR CUSTOM DUTY PAPERS/REVALIDATE YOUR DUTY PAPERS THRU A LICENSED AGENT by dejidotun2000(m): 5:49am On Nov 15, 2017 |
Is it possible to ascertain the registration status and details of a car in Nigeria using the chassis number
Never assume all is well when buying a Nigerian used car.
OYO may be your case if you don’t sight and verify all the vehicle documents before you part with your money..
Some have fallen victim.. and the car they bought ended up being stolen or smuggled vehicles. To prevent future occurrence, I have come up with this list that will prevent you from buying an undocumented vehicle..
These are the 8 Documents you should ask for when buying a Nigerian used car:
1. Custom documents fully stamped and check whether all things correspond like name and model of car, VIN and all payments were made. Mostly like 6 or more papers.. could be photocopy if multiple cars were cleared by one dealer. But make sure it is a clear crisp document not faded crap.. and don’t take the nobody will ask you for customer paper crap . It could spell doom or stolen vehicle.
2. CMR (Computerized Motor Registration) original copy
3. Current insurance (original copy)
4. Vehicle licence (original copy)
5. Road worthiness certificate (original copy)
6. Plate number allocation (original copy)
7. Original proof of ownership fully stamped
8. You will collect two printed and signed documents:
a. Change of ownership document
b. Receipt of purchase from previous owner
There are some other documents you may need like
a. Tinted permit doc
b. police report/doc of change of ownership/plate number/engine number/ chassis number (which we call vin)
Make sure you see the change of ownership letter given to the buyer duly signed when he first bought it as Nigerian used.. except the car was bought as tokunbo then you may not need this.
Once the car doesn’t have custom doc.. except it’s a beetle and the documents have expired years ago, I suggest you stay away from such ride.
If you have any further questions, don’t forget to drop it
| Car Talk / Re: Read This Before You Buy Another Used Car by dejidotun2000(m): 5:24am On Nov 15, 2017 |
Are you absolutely sure that the details of a pre-registered car will come up if one tries to re-register it?
I am in a particularly difficult situation. I mistakenly registered my car with the custom papers of another car (dealer had two similar cars and mistakenly gave me the wrong paper initially) . Unfortunately I didn't know that MVAA will require the custom paper of the other car in order to correct mine.
TLDR:I need to contact the owner of the other car
This only happen when car owners prefer to patronize touts when registering a vehicle. Every genuine registered vehicle can not be re-registered except their is evidence of purchase and valid police clearance certificate. In the process of registering a vehicle, as soon as you imputes the chassis number into the computer, the name of the previous owner appears with all his details including his phone number. A call is then placed to that phone number to confirm if the car was sold or stollen before proceeding with the registration process. A lot of cars have been recovered in this process. That is why those that have clean cars with old number plates should try and get the new number plate because no data is available on the FRSC website for old number plates. All are encouraged to visit the FRSC NVIS desk officer at the state board of internal revenue of each state for the registration of their vehicles.