Crossy

It may be worth talking to your local PEA office to get some leads or even find a PEA engineer willing to earn a bit of cash on the side.

As with many things, if you don't ask you will never know

23 hours ago, MRtommyR said:

Any Citi credit card holders able to successfully register for the UOB app since the migration yesterday? I complete my passport number and date of birth and successfully receive an OTP, but the next screen asks to confirm my credit card number and then rejects it. Same issue when trying to connect with them on LINE

I don't even get an OTP, just an "error try later".

It may just be flooded.

If not sorted by tomorrow I'm going to our "local" (20km drive) UOB branch with my "angry farang" head on!

EDIT They evidently have my phone number as I get notifications of transactions on my card.

It

9 minutes ago, zlodnick said:

Thanks crossy neighbors have same problem  250 meters to transformer

If you've not already I would get all of the families with the same issue together hand head en-mass down to your local PEA office and ask to see the boss.

You may wish to take a bottle of a suitable "lubricant" for the supervisor

Before shelling your hard earned $$$ on an AVR have you verified that it's your incoming supply that's dropping off?

Check at your main breaker and at the meter.

 A drop of 20V with only a couple of kW load suggests there's something pretty seriously wrong here.

Are you a long way from the village transformer?

Unfortunately, many local PEA offices have the attitude "you have electric, so no problem".

If you do decide on an AVR I'd suggest something around the 3kVA mark to supply just your 18k A/C.

A comment on moderation has been removed.

I suggest everyone review the Forum Rules they agreed to when they signed up.

https://aseannow.com/terms/

Some rules have changed over the years, this is not one of them: -

17 minutes ago, impulse said:

I'll test my cheapo power bank with my laptop, at my Chinatown hotel.

Yeah, I just plugged the power bank into the lappie, then plugged the phone into the power bank.

Pling!!!

And my phone data appeared on the lappie!

IMPORTANT - I just checked my el-cheapo (it may even have been a freebie) power bank which charges and passes power at the same time.

IT ALSO PASSES DATA!!!!! 

So as a condom, it has a hole!!**

** Long ago the Bath Student's Union decided that distributing condoms to students was a smart idea. They stapled them to each issue of the SU mag!!

Just now, Woof999 said:

Do power banks allow incoming / outgoing charging at the same time? Not sure mine do.

My el-cheapo one certainly does, the better more expensive ones don't.

Ideally you should do something like this: - 

Each inverter has a means of isolation from the batteries, each battery can be isolated from the DC bus.

How you do the paralleling is up to you of course, but as you've found multiple cables in one MCB hole is unwise.

A nice, meaty, copper bus-bar is the ideal solution.

I hesitate to post this, but I've seen this done in the past, slip some heat shrink over it, if you don't actually shrink it, you can see if the joint has been getting warm (the heat shrink will, er, shrink).

A whole bunch of off-topic attempts to de-rail the thread have been removed.

6 hours ago, kwak250 said:

You use more on some days that some people do for the month.

Is that all solar?

A big chunk of that is used by Madam's koi pond. With their filters, air pump and UV light along with their special koi food those ruddy fish get a better life than I do!

We've just added (yesterday) another 6 panels bringing us to 15.3kWp on the car-port, that should give us around 45kWh per day.

Our aim is to be grid-independent (rather than off grid) so we will retain a grid connection for backup purposes.

There's 56kWh of storage currently in boxes waiting for me to actually assemble battery packs. In order to use all that energy I'm going to have to upgrade our inverters probably to 3 x Deye SUN-5k-SG05LP1-EU running in parallel

https://www.lazada.co.th//products/i4978816678-s20977309094.html

Madam has designs on an EV and enclosing (and air-conditioning) our large downstairs living space so even more panels are in the plan.

All good fun (and $$$).

6 hours ago, lom said:

I know exactly what you're experiencing, I have two grand children living with us and they have each their own room..

Me: Not a degree below 27 on the remote or I'll cut down on your candy and your school money!

My UK grandkids just went home.

Down to a reasonable 60kWh/day total usage (Thai grand-daughter is still with us or it would be 30kWh/day) from >>90kWh per day whilst they were here.

29 minutes ago, Pink7 said:

Nice progress. Waiting to see more on your battery building.. Quite a upgrade you are on.

Luyuan have an assembly video for their kits (complete with cheesy music). 

Meanwhile we installed the last 6 panels that will fit on the car-port.

In the end we manhandled the box from their pickup into ours so we could unpack at our leisure.

Is that how the manual says to do it?

On 4/15/2024 at 6:49 PM, Pink7 said:

With so good deal its worth the wait!

Being delivered today, probably came by train rather than boat.

A minor bump in the road to storage delight.

The logistics company called last evening "do we have a forklift?". The kit is in 18 boxes, but regulations required that these be packed in a wooden crate, total weight 250kg!

They were less than delighted when we said "No forklift".

Their happiness factor increased significantly when we said "But we'll unpack the box on the truck".

9 hours ago, degrub said:

Please post a photo of the setup with the wires identified..

Yeah, I'm a little concerned about the positioning of the breakers/fuses in relation to the packs and inverter.

28 minutes ago, Pink7 said:

Thanks for the reminder.

You're welcome.

Do note that it has absolutely nothing whatever to do with this afternoon's magical transformation of a 0.5mm² BMS sense wire into a poof of acrid smoke and a slight black stain on the top of the battery pack I'm building! **

I didn't even say "Abracadabra"!

** The un-stripped end of the wire contacted the B- terminal, 4 x 560Ah (2P - 280Ah) cells in series can generate an amp or two!

IMPORTANT NOTE: - Please don't lose sight of the fact that there is a LOT of energy tied up in your battery packs.

These packs are quite capable of pushing several thousand amps if shorted, that 1/2" drive ratchet stands no chance.

A litre of petrol/gasoline contains about 33MJ or about 10kWh => 200Ah @ 48V.

It may be "only" 48V but please treat your pack with the respect it deserves.

4 minutes ago, Pink7 said:

Do you see any problem to run the setup some days without parallel connection between the batteries?

Your only issue could be when you re-connect the parallel if the packs are different states of charge, significant currents could flow as one pack charges the other.

For high-current parallel connections I'd use a bus-bar with one lug per bolt.

Something like this.

https://www.lazada.co.th/products/i4750566069-s19589324451.html

5 minutes ago, Pink7 said:

Looks good. I use a heavy duty type lug for high current. see photo

I don't think I would have done it like that!!

What size is your wire? It's friend?