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Canada

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Posts posted by Canada

  1. 2 minutes ago, Crossy said:

     

    Don't push the envelope. I wouldn't go below a 15kVA AVR to be honest.

     

    Is it significantly cheaper than the 20 KVA unit?

    No, not worth causing myself problems. :)

    Thanks again for your help. I'll report back and let you know how it all goes. 

  2. 3 minutes ago, Crossy said:

     

    For the AVR, yes, no issue whatever.

     

    The problem is that every Amp you pull from the AVR at 220V will pull about 1.5A from the supply (if it's down to 150V).

     

    You have about 3 Ohms of round trip resistance (from your experiment with the 2HP pump and the volt drop), so you lose 4.5V for every Amp you pull from the AVR output. To pull your off-load 227V down to 150V needs about 25A.

     

    This is a quick-and-dirty guesstimate of worst-case, but if you don't score with PEA ...

     

    EDIT Air only at night, running on a 30% duty-cycle (assuming they're not massively under/over sized) I reckon you'll be fine with the pump as well.

     

    OK. Well I'm going to trust you on this. I'll buy the AVS and install the 2 airs. I can modify my water requirements pretty easily. 

    I think I'll retain more serenity going this way vs. taking PEA to task, or getting them to pull 2 more wires that will be undersized that i still wont own. 

    Note. The 2 airs will be overkill for the rooms they are going in. 12 sq m each. But the load will be pretty good because the rooms are upstairs. Terrible hot. We cannot sleep upstairs right now. 

    So then if I modify my water requirements, I should be able to by a smaller AVS. Correct? 10 KVA should cover the 2 airs OR the pump 

  3. Chances of running the 2 airs, the pump, espresso, and having a hot shower all at the same time are pretty slim. We could manage ourselves to make sure that that never happened.
    Airs are nighttime only. I would like to run the pump as well because line requirements are less in the village at night and we run drip tape on a few rai of cane in our backyard. I'd prefer to water at night. 

     

  4. 14 minutes ago, Crossy said:

    That 20kVA unit will happily provide nearly 100A :smile:

     

    It will run your whole house without issue, the only problem is just how low it pulls the PEA supply.

     

    EDIT If I've done the sums correctly about 25A will pull your incoming supply down to 150V (where the AVR will start to run out of steam). You should be OK with the two aircons but I wouldn't want to bet on the water pump and any water heater at the same time.

     

    EDIT 2 The volt drop does seem to be in line with PEA providing 25mm2 all the way :sad:

    OK. Thanks for doing that for me.

     

    Could you explain a little for me please?

     

    I can see the figures for watts- 1450, amps -(6.8) and voltage. (220-240)But I dont quite understand the relationship of everything. I think I do, but I clearly dont when you look at how I understand it (below) and your comment that running air should be okay, but not much more than that 

     

    2x1450 is say 3000 watts of an available 20000 correct? apply a factor of.8 to the 20 leaves me with 16 kw of which I've used 3 for air. I should still have 13 kw available shouldnt I?

     

    I'm confused

  5. 1 hour ago, bankruatsteve said:

    Sounds like your PEA isn't being especially supportive to your needs.  Yes, 3-phase would help but likely to be 3 phases at 204v.  Getting a transformer closer to your house would be best but the only? other solution is a giant and expensive AVR.  You might try crying to the PEA since you already bought them a lot of wire.

    I can get a 20 Kva AVS for about 23000 baht at Global

    20kva.jpg

  6. Im guessing pole to house isnt a big issue because its only about a 50 m run. It's the PEA supply line that's the problem. So' I've fallen victim to the ways of Thailand. I get that.

    Anyone have any luck taking PEA to task on something like this? I'm not an electrician so I dont really know enough to do that effectively. I dont lack in assertiveness though but there is a fine line here between assertiveness and perceived aggression. Thais are pretty sensitive. 

  7. I've checked the wire down the pole and to our house. Its all 25 sq.mm.

    So looks like its a 700 m run of 25 sq mm. 

    open breaker right now at low usage time is 227 volts. switch on 2 hp submersible and volts at main breaker drop to 207. That's running the pump through a smaller step up transformer, not direct.

     

     

  8. Hi there, 

    I'll admit first that I havent done a search in this forum for my answers. 

    I'll try to be brief

    We live about 700 m outside the village. We had PEA pull cable to our house at a significant cost. The voltage seems to be not enough. ie - shower with hot water and fan speed goes down, turn on espresso maker and fan speed goes down, 2 hp submersible wont run properly without a step up transformer.
    Now I want to connect 2 -18,000 BTU air cons for night time use only. 
    PEA says that everything would be better if I had them pull another 2 wires our for 3 phase. That is also at significant cost. 


    Would 3 phase actually supply more power? 
    Would my 2 hp sub pump run properly if i dedicated a line to that?

    Could I buy a 100 amp step up transformer / AVS and have that fix my problems? Or am I looking at a multi facet solution? 

    I bought a volt meter yesterday and at my mains in my power room I have 204 V. In the house I have 204 V. At the end of my extension cable to the step up transformer for my 2 hp submersible, I have 190 V - so considerable voltage drop there which could be rectified by proper sized wire I think. 

    My main concern is installation of my 2 air cons. 

    Questions?

    Answers?

     

    Thanks

     

  9. Been waiting for the Classifieds to come back.

     

    Wow, they sure took a user friendly format and destroyed it entirely didn't they? You used to be able to search a whole topic or item by region with one click. Its gone. I must be retarded or something. I cant figure out for the life of me why somebody would take something that was working very well and completely butcher it. Judging by the number of ads, I'm not the only one who is not impressed. Kind of disappointing. No more easy cruzing the classifieds. 

  10. Ouch.

     

    Ok then, thank you very much for the straight forward answer. Probably sell here and buy there would be my best bet for my 2010 Fat Bob. I could take my mods off and ship them over there. Darn thing is only worth 12,000 here right now, even with low kms and all my mods. But it would likely be a costly adventure to legally get it there. Maybe. I'll have to spend some time figuring this one out. Thanks again.

  11. How long had you owned your bike, and how much was it's real value in Thai funds, how much was its assessed value by Thai authorities, and how much was the final bill for taxes, duties and fees?

    If you would please. I'm trying to assess whether or not to bother to try to import mine. If you do not want to publicly post this info, would you PM me? I'd really appreciate it.

    Thanks

  12. Does anyone know if it is still possible to disassemble, ship into Thailand, re-assemble and obtain a green book for it? Obtain - by any means. I know it used to be possible, but I've heard that it is a thing of the past. Any recent experience out there?

    Thanks

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