₦airaland Forum

Update on my 12kva Stab - on a closer inspection, i noticed that one of the relays had its switch jammed. I opened up all the relays (6 in number) and cleaned their contacts with sandpaper. put the stab back to use and everything is fine.

[quote author=chimeziem post=65116808]Good-day House,

I need suggestions to what could be wrong with my stabilizer (12kva relay-type stabilizer – A&E dunamis). I woke up this morning to discover that it wasn’t working – was showing OverVolt. Input voltage reading was 200V but no Output from the stabilizer
I turned it OFF and then ON, then waited for the AC attached to be stabilizer to come up. The moment the AC compressor came ON, the relays in the stabilizer reacted and immediately displayed output voltage of 295V and the OverVolt sign appeared.
I tried same thing again with same result, then opened the stabilizer to see if anything was out of placed but all the components seemed fine – No apparent blown capacitors, transistors etc on the board. I could not get a good look at the relays.

Does anyone have an idea of what is happening to my stabilizer? Please share

[s][/s]

Good-day House,

I need suggestions to what could be wrong with my stabilizer (12kva relay-type stabilizer – A&E dunamis). I woke up this morning to discover that it wasn’t working – was showing OverVolt. Input voltage reading was 200V but no Output from the stabilizer
I turned it OFF and then ON, then waited for the AC attached to be stabilizer to come up. The moment the AC compressor came ON, the relays in the stabilizer reacted and immediately displayed output voltage of 295V and the OverVolt sign appeared.
I tried same thing again with same result, then opened the stabilizer to see if anything was out of placed but all the components seemed fine – No apparent blown capacitors, transistors etc on the board. I could not get a good look at the relays.

Does anyone have an idea of what is happening to my stabilizer? Please share

Update on my 12kva Stab - on a closer inspection, i noticed that one of the relays had its switch jammed. I opened up all the relays (6 in number) and cleaned their contacts with sandpaper. put the stab back to use and everything is fine.

GeorgeD1:
all,

happy easter to everyone in the house. as stated earlier, i'm clearing out my solar modules
to pave way for the major systems upgrade which is currently on-going.

so i'm giving out my original sharp and suntech panels to the lucky few who are quick enough
to grab this offer.

wattage: 200w each
price: 30k each

minimum order qty is 2pcs

it will be on first come, first serve basis.

Happy Easter George!

I sent you an email, awaiting your reply. I need some of the panels.

DMerciful:
For DC, there is positive and negative. Also the strength of a chain is the strength of its weakest link. Use 10mm or more for both sides.

lol! I actually meant +ve and -ve.

Thank you all for your quick responses.

Good-day guys

I have a question for the gurus in the house. Can one use a cable of smaller gauge for the neutral line compared to the live in a solar setup between pv and cc

Why i ask is that am trying to setup about a 1.5kw pv on mppt cc for a 24v battery bank. Plan is to use 10mm for live and then 4mm for the neutral between pv & cc. Distance will be 25ft (30ft max).

bigrovar:
The particular variant I ordered which has 4 LEDs is nolonger in circulation... Fortunately they have been replaced by improved version of what I have. The link below has the 6 led for less than 10 dollars. About 13 dollars including shipping.
LED Solar Light Waterproof IP65 Outdoor Lighting Ultra Bright LED Solar Lamp Wall Lamps For Home Garden Corridor Decoration
http://s.aliexpress.com/JfuIJN3Y
(from AliExpress Android)

These solar powered LEDs are even on jumia and konga. Currently checking them to know the ones to order.

Nice one bigrovar!

[s][/s]

Hello georgeD1

your solar water heater setup is impressive and going by your analysis, it is the way to go. But i question - considering that the setup has to be mounted at about the same height with its supply water tank (hence giving nearly no head difference for the water pressure), how were you able to ensure water entered the solar water heater to replenish you hot water usage as quickly as possible

GeorgeD1:
efuro,
abunafiu,
all,

as promised, here is a run down of cost implications of installing a solar water
heater compared with the conventional electric water heater. as you will observe,
i have made a few assumptions here in arriving at my answers. also, i decided
to go with the lowest size capacity of 100l deliberately just to dispel the belief
that solar water heating is only for high volume use households or hotels.
the result is certainly amazing - even to myself.

[s][/s]

Rexceedo, Can one buy T-bill without going through the banks?