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Metropolitian

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Posts posted by Metropolitian

  1. 3 hours ago, JohnBarleycorn said:

    798826868_JacksonP.jpg.ffbf34da057d6749d49e02c046bc996d.jpg

    In the midst of the day


    The pitch dark forest is
    In the middle of the day
    Where end meets the begin
    Pitch black, very dark, dark

    The pitch dark forest is
    A truly wondrous place
    The gloaming always is
    Pitch black, crawling dark, dark

    When you try to see
    You won't be able to feel

    Is it near or is it far
    Pitch black, how dark, dark


    The pitch black forest is
    A image from your feeling
    Run fast, it's growing slow
    Pitch black, very dark, dark

    The pitch black forest is
    Something that keeps on moving
    Is it near or is it far
    Pitch black, crawling dark, dark

  2. 17 minutes ago, StreetCowboy said:

    My brother had a Yamaha FS1E moped back in the day; to be qualified as a moped, it had to have pedals that you could use as a motorised bicycle, rather than a motorbike, to qualify as a moped and be allowed to ride at 16.  

    I had a few Motobecanes. One was a bike, and other two were mopeds.

    Had another engine-bike, a Dutch Kapteijn Mobylette (with motobecane engine) and a England engine-bike the Raleigh Runabout.

     

    Raleigh Runabout.

    Exactly the same as this one:

    12929333.thumb.jpg.b3e1394491b94b521fccc647496db5fb.jpg

     

    At the pedal wheel there is a knob (M-V) to switch between the motor-engine and velo  , the ''change over''

    image.png.be951b7f856cd03d2092062624cf83bc.png

     

    In Netherland the difference between ''orange'' moped and ''yellow'' moped is with the speed.

    Orange, not faster then 30kmh and Yellow officially 50kmh.

    With ''Yellow'' you pay more tax and you need a helmet.

     

    Under 50cc are mopeds (brommers) and suitable for 16+

    Bigger then 50cc are motorcycles and for 18+.

     

     

    I used them as bike and as moped. Whatever the location, weather and mood was  :whistling:

  3. FIFA , video game series, came out with the upcoming seasonal year as the number.

    Sometimes only the last two (FIFA 94 in 1995 ) and sometimes the whole year (FIFA 2000 in 1999).

    But which one FIFA <number> was not ?

     

     

  4. 2 minutes ago, StreetCowboy said:

    68DB513B-AD14-4817-98E2-12B3BEADE921.thumb.jpeg.dbec4f54b65e9ce92b5aa3c974e72563.jpegOk - two chains but no snow tyres.

    its hard to social distance on a tandem

    555555 good one.. even the 'changeover' thing, let one bike and the other takes over when the first 'fuel' runs out ????

    But no, not the bike I mean.

     

    Another hint: It makes noise, but not always.

  5. 57 minutes ago, StreetCowboy said:

    A changeover sounds a bit cross, but not cyclocross.
    I am guessing not BMX either, or you would have mentioned banditry. 

     

    Had a BMX once. Never got on the ramps but fun on the dirt track I had with it.

    Was a real exercise to use it on the road for a distance, tiring.

     

    Hint for the " A changeover of fuel input " : It has two chains.

  6. 4 hours ago, Crossy said:

    This is why we need to know what he has, photos of the kit would be a good start.

    I suspect he has a non-grid tie hybrid inverter, but ..

    ....

    6 hours ago, malcolminthemiddle said:

    I found this. I think the issue maybe with the software? 

    Off grid.png

    6 hours ago, malcolminthemiddle said:

    Yes. When I simulate a power failure by opening the main breaker the batteries kick in and stay on.

    If it turns on when the main breaker is opened, then it is a hybrid grid-tie-inverter.

    But the picture that you, got from the manual on cd (?) is for a off-grid inverter.

     

    So questions for the OP, MITM:

     

    • What is the name and type of your inverter. (We can help if you post a picture)
    • What do you mean with 'main switch' , the one in the customer unit or a switch at the inverter?
    • Is the power failure a direct cut or a brownout, the light flickers and dims before it goes out

     

     

    6 hours ago, malcolminthemiddle said:

    I have an app that gives me a live graphic of the system including battery storage.

    I will take some and post.

    How would I do that? Thanks

    Screenshot: depending on the mobile phone, mostly the bottom button and volume down pressed at the same time.

    Do a google with 'screenshot <your phone name and type>. 

    Or is the app on the computer? Take a screenshot with [alt]+[prt screen] and paste in the write field on ThaiVisa.

     

     

    8 hours ago, malcolminthemiddle said:

    That's beyond my technical level. Although the back up did work perfectly before. I cannot think of an event that would have upset the system.

    A surge can happen without knowing such things has occured. Some electronics lock up, happens a lot with routers, mostly a reset fix it but not always.

     

    8 hours ago, malcolminthemiddle said:

    3 years old. They are regularly serviced and hold a charge of 90% +.

    If I turn the solar off and then back on during the outage the batteries will kick in but only for a minute or less.

     

    THAT sounds like a battery which holds the voltage but lost it appetite (capacity) to hold the charge it was rated at.

    So how do you measure the charge? Does the app say that?

  7. 18 hours ago, Crossy said:

    EDIT This chap looks promising, grid tie that can run battery only. It has RS-485 too although it's intended to run with a dedicated sensor. https://www.aliexpress.com/item/4001054628033.html

     

    H21fb1082834d48db8270996316cf7998C.png

     

     

    Spot on ????

     

    Just checked the manual; the inverter (C) can work in two modes (mode setting via display). 

     

    PV and BAT,  on which the PV mode use the built in MPPT method and BAT mode locks on the voltage according the type of the GTI.

     

    The MPPT controller (B) is needed IF you want to use both solar and batteries.

    The GTI (C) need then be set on BAT-mode.

     

    Edit:

    'Connection method (optional):

    4. B+C

    5. A+B+C

    6. A+C

    7. A+B

     

    I like mehod 5 and a cloud in my brain says with a modified system; a current resistor in series between device B and C and a contactor between the battery and an extra battery bank (nutty 'dummy' load) when the primary bank is full. In normal mode the contactor (NC) shorts the current resistor and when the power usage is low energize the contactor, the current resistors clamps the flow going to the GTI, current goes to the banks. 

    Most MPPT controllers want to have a battery bank connected, permanently.

    The extra battery bank can connect automatically when the primary runs out.

    I need a drawer for those plans, missus has other plans for me to do ????

     

    • Like 1
  8. 17 hours ago, Crossy said:

     

    Thinking about it ????

     

    I've got a 5kW dummy load that's controlled by an Arduino (light dimmer type phase control) which works pretty well although not needed any longer. It shouldn't be rocket science to make a variable battery charger on a similar principle, or even just PWM the DC side to keep the net grid power at zero. Going to need over-charge protection etc.

    Sounds like a plan for one of the boards here ???? do you have an article on this?

     

    17 hours ago, Crossy said:

    I've not seen a battery only grid tie inverter so it might be better to just use a normal inverter and switch the normal load (lighting, TV etc etc) over en-mass and run off the batteries until they reach the low point and then flip back to mains power. This would also have the advantage of giving a UPS-like system to keep the lights on even with the mains off.

    For a reason that I have an 4P ATS on my shelf.

     

    Using the other 2-3 for opening/closing the batteries and switching between charger and inverter. Only the L1 port (and N) is connected to the circuit inside.

    Method that I was thinking was like this: the sensor that detects when the power usage (almost) going the other way it will de-energize the L1 (using smart switch) and the ATS changes over and at the same time connects the batteries to a offgrid inverter which feeds a low-power group like lights and tv.

    The sunny side with this method is that with power cuts the batteries would kick in too.

     

    Then I would have to ponder about how to hook the on grid inverter in the same group, and the offgrid inverter would give the 50hz to the group but the load in the group need to be higher than the generated power by the ongrid inverter otherwise the offgrid inverter gets the magic smoke. (Ask me how do I know :whistling: )

     

    And then came along the idea for a ongrid inverter on batteries instead ????

     

     

     

    17 hours ago, Crossy said:

    EDIT This chap looks promising, grid tie that can run battery only. It has RS-485 too although it's intended to run with a dedicated sensor. https://www.aliexpress.com/item/4001054628033.html

     

    H21fb1082834d48db8270996316cf7998C.png

     

    I have seen something like that yesterday, but a slightly different diagram. 

    Wonder if the mppt controller and inverter are happy working together and with the DC pulsating like an half AC.   (Here around 47khz)

    By the way isn't a hybrid inverter just like B and C together? And C alone seems likely to work on batteries alone.

     

     

    The reason for the invention of the no-power-to-the-grid inverters was simply because there are digital meters on the world which has no sense of direction of the flow.

    The consumer would then pay for imported+exported power.

    Smart-meters now really don't need those. 

    Spinning wheel meters, in Thailand, no exporting as we all know on metering days and having the luck your meter to be the only one on the pole ????

     

    • Like 1
  9. 17 hours ago, Crossy said:

    Going grid tie for this would be more elegant, need to source an inverter. Maybe look at inverters intended for wind?


    https://www.aliexpress.com/item/32868854419.html?spm=a2g0o.productlist.0.0.c5787534MfanfJ&algo_pvid=acf3a0bf-6108-4dbd-a831-0e0eb05f27c4&algo_expid=acf3a0bf-6108-4dbd-a831-0e0eb05f27c4-11&btsid=0ab6d69f15914272031672452e3ef8&ws_ab_test=searchweb0_0,searchweb201602_,searchweb201603_

     

    This one seems to do the trick.

     

    Some research on the web (people already tried those methods) tells me that using an 'normal' GT inverter which is only meant for solar panels would work, but on a lower efficiency.

    Batteries are voltage sources and the mppt function in the inverter is for current sources like the panels.

    But when the battery voltage was close to the optimal voltage for the inverter they were able to get efficiency of 80%, and some did hook up the batteries for a long time without the inverter going poof.

     

    Even the cheaper inverters (with new firmware ?) , like this one
    https://www.ebay.com/itm/600W-MPPT-Grid-Tie-Inverter-230V-for-12V-PV-Panel-24V-Battery-Solar-Microinverte/174201705696?hash=item288f3b14e0:g:aLwAAOSw6-5eVOEg  would accept batteries according the description.

     

    • Like 1
  10. 3 hours ago, Crossy said:

    version which dumps excess power into batteries and then discharges the batteries when the solar isn't enough, generally it aims to keep the grid power zero.

    Any ideas on DIY-ing this?

     

    With TOU; Time isn't a big issue but utilizing it before 22.00 would be a better idea, IF there is any 'usage' indoors.

     

    Things to consider are the  discharge rates and 'repeating'.           (price, leave that aside in the calculation/consideration as it's an external factor)

     

    For a lot of repeating and short intervals high capacitors could be an option.. (?)

     

    For daily buffers at and after sunset, pack of lifepo4 (or whatever the future brings us) and a hybrid-without-solar grid tie inverter which kicks in.

     

    A flywheel, in the attic ?  55555

     

    fwl.jpg.f00d85355ec4988b5f08133a2b31743c.jpg

  11. 2 hours ago, Crossy said:

    I have one of these chaps on order https://www.aliexpress.com/item/4000227401890.html 

    Looks good except for the 30 euro just only for the CT ????

    This inverter has the wifi and rs485 separate which is a plus.

    image.png.0f44071ddd0c4162c12e5a5dc32cc6c6.png

    Mine has all datacommunication trough one D-sub connector port.

    In order to use the modbus data I would have to give up the wifi option.

    Not giving up, trying to decode the data from the wifi to the cloud and writing a code to scrape.

    Last resort is to daisychain the rs485 or Y-split the wiring, not sure which lines the wifi is using but I suspect it's just a serial to wifi gateway with a small webserver and api to upload to the cloud.

     

    2 hours ago, Crossy said:

    Link it with 20 x 340W panels in two strings and you'll make 25-30 units per day (very dependent upon the weather of course). So that's going to be about 3,300 to 4,000 Baht off your power bill each month.

    *drooling*

     

     

    2 hours ago, Crossy said:

    These units have a handy facility that allows you to limit the power exported, not sure yet if it can be time related but it's simple to disable the current transformer that it uses as the sensor for "export ok" days. Any excess generation is just thrown away (not actually generated).

    Yea.. that's good for who not want to export a nanowatt. For the time being I just let it export and have the electric company keep the 'waste'. And I can still monitor the 'wasted power' by checking at the meter outside.

     

    But..

    2 hours ago, Crossy said:

    There's a rather cleverer (and a lot more expensive) version which dumps excess power into batteries and then discharges the batteries when the solar isn't enough, generally it aims to keep the grid power zero.

    That's what I will let it do here when the power goes below zero it will turn on loads. Better a nutty load then a dummy load :whistling:

     

     

     

    • Like 2
  12. 8 hours ago, BritManToo said:

    I'm about to add another 3x 330w panels to my garden with a 1000w Grid Tie inverter.

    Power generation around 3 units per day (90 units a month).

    Total cost around 13,000bht.

    That's or an error or an very good deal on the grid tie inverter !

    3x3500 (for the panels) = 10500 that leaves out 2500 for the 1K GT inverter.

     

     

     

    7 hours ago, Crossy said:

    and a number of members have had no-reverse meters installed, much to their annoyance.

    Metro is one of them...

     

    Now working on an automatic switch to a array of chargers for the battery pack (for modified UPS, lights and 12V equipment on nights) and a signal lamp (for the missus; that she doing the laundry).

    Turns on when the consumed energy going to drop below zero.

     

    Sensors and process flow working already, smart switch turns on the table light.

    Later this smart switch will be modified to drive a contactor/relays for starting the chargers

     

    image.png.866ed61b0ca0cb3f455cbd6c5fb5f6b9.png

    image.png.d690961e49f112316e4e0496153b4744.png

     

    If I still had the old spinning wheel then I this was no issue BUT only if the generated power that day is used the -same day- , before 22.00 ,  as we are on a Time-Of-Use contract.

     

    Anyone else, on a regular contract with spinning disc meter, make sure that on (and around) the day of netmetering the wheel is NOT spinning back.

     

     

     

    So, to the OP; which meter and what contract are you on?

     

    • Like 1
  13. 3 hours ago, champers said:

    If you mean Bobby Robson, no.

    Yes, and now I did look it up as the answer was no. Hm ds. It's not so obvious cuz it is not only one 'team England'. So I wouldn't say anything more to not spoiling the game ????

     

  14. 41 minutes ago, wilai said:

    Cheers.....Which England manager gave David Beckham the captaincy?

    On the fields Diego or Capello (either the first and last I think) and at home it is Victoria

  15. 12 minutes ago, wilai said:

    If I can count I reckon his shirt number was 14....so I'll go with Johan Cruyff? Hope you're head is on the mend bud.

    Aaaaaaaaaand it is !

     

     

    Johan Cruyff | Ajax & Barcelona

    The late and great Johan Cruyff enjoyed massive success both on and off the pitch. The Dutch legend not only dominated on the pitch but also revolutionised the game away from it. His style of play is still adopted by many managers today. Aside from winning multiple titles with Ajax and Barcelona, he also founded the prestigious La Masia academy which produced players such as Leo Messi, Andres Iniesta and Xavi.  (source: Top 10)

     

    Concrete Village , in Dutch 'Beton dorp',  Betondorp is an neighborhood in Amsterdam and where Johan 'Jopie' Cruyff grew up and also the location of the old Ajax stadium.

     

    14 was his jersey number, even in the time when it was not usual to have a number outside the 1-11 range.   (source: wiki)

    14 is also the numbers of his 'rules' :

    • Team player – 'To accomplish things, you have to do them together.';
    • Responsibility – 'Take care of things as if they were your own.';
    • Respect – 'Respect one another.';
    • Integration – 'Involve others in your activities.';
    • Initiative – 'Dare to try something new.';
    • Coaching – 'Always help each other within a team.';
    • Personality – 'Be yourself.';
    • Social involvement – 'Interaction is crucial, both in sport and in life.';
    • Technique – 'Know the basics.';
    • Tactics – 'Know what to do.';
    • Development – 'Sport strengthens body and soul.';
    • Learning – 'Try to learn something new every day.';
    • Play together – 'An essential part of any game.';
    • Creativity – 'Bring beauty to the sport.'

     

     

    Wilai, you have the ball now.

  16. On 6/2/2020 at 8:14 PM, wilai said:

    Metro seems to have disappeared. You can do the next question JD if you like.

    My quiz question stays open for any who want to guess.

    Winner won't get the ability to post a new question and will get a extra gain in the list of fame. ????

     

    The hints were :  concrete village (translated from the language the person is speaking in his own country)  , and count the words that's in the post is also his number.

    Extra hint:  He is in the Top 10 Players who went on to successfully manage their former team , like Conte is.

     

    19 hours ago, LeungKen said:

    Thanks champers

    I will let some one else set the next question as I am busy doing other things.

     

    Lets continue the question ... :whistling:

     

     

    > I will post an extra clue tonight.

  17. On 6/2/2020 at 8:24 PM, jellydog said:

    Seems Metro went to the country. HAHAHA!!!!!!

     

     

    Lols.. the Country came to us ! :whistling:

     

    (and a heavy migraine attack had me down for a big day..)

    • Like 1
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