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Author Topic: Grid Hopping  (Read 87825 times)
biff
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« Reply #120 on: May 07, 2017, 08:36:43 AM »

Tres impressive Scruff,
                    I have not forgotten about you. I have been dragged away to haul timber in between trying to get my trailer sealed off and out of the shed..
  Pwoggress has been achieved, i vill get back to you velly shortly.
                                                            Biff
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biff
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« Reply #121 on: May 07, 2017, 10:31:01 PM »

Right Scruff,
            Good stuff, 200 is a start for now, I hope they are the two seater versions.
                                                     Biff
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jonesy
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« Reply #122 on: May 07, 2017, 11:12:29 PM »

I'm disappointed in you Scruff; those isolators don't match. That would drive me nuts.
Simply ruins the whole job for me.  Grin

Wish I had your patience. Nice work.
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1.1kWp PV & SB1700. 7kW log burner.
biff
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« Reply #123 on: June 17, 2017, 09:51:23 PM »

Once again, Impressive stuff,Scruff,
                Can I buy one,?  Expensive, ?
     I use a head lite a lot, around the yard. Means I can keep my hands free to do other things.
                                   Biff
                               
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« Reply #124 on: June 18, 2017, 10:37:51 PM »

     I use a head lite a lot, around the yard. Means I can keep my hands free to do other things.                        
Whilst Scruff needs to get out more (I'm jealous really) I really don't need to know why you need hands free Biff  signofcross
Soooo, the self charging thing.  Where is the filler for the snake oil. OK,  just realised my  mistake- you didn't include the lead from the one pack back to the other.  You marketing types are good.
Sign me up for 100.  I can make a killing selling these on as a complete kit and you can just be my slave supplier.
Cue laugh at the end of Thriller.
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biff
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« Reply #125 on: June 18, 2017, 11:49:26 PM »

Ah Jonesy,
         You are insinuating that I might stop in the dark from time to time to play my portable full size Grand piano,,  Well rest easy, I gave that up some time ago, As you probably heard, We are over run with Leprechauns , Its damdish the way that they scurry about in the dark, with their heads down and not looking where they are going, They are only 3ft in height but built like brick potty houses,, and they have been known to butt the unsuspecting victims in the groinialial area. Which can be breath taking for the victims,,
  So with the Scruff,s headlight, I could use my two hands and modestly, possibly, deflect the approaching foreheads, I am delighted to be able to clear than one up.
                                                                                                  Biff
                       
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« Reply #126 on: June 19, 2017, 08:51:17 PM »

Lol.
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todthedog
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« Reply #127 on: June 20, 2017, 06:55:38 AM »

Fabulous ! A genuine cracker.
 genuflect
Jonesy Just think of the complications of filling out your French tax return!!!
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Kidwelly South Wales
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« Reply #128 on: June 20, 2017, 10:53:01 PM »

Sweden has made you soft, Tod. You mean further complications.
Did you hear France is going paye? There will be manure everywhere......
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biff
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« Reply #129 on: August 19, 2018, 11:44:36 AM »

Yo Scruff,
       Fantastic insight into the working of a devoted mind. Great pics and full of valuable info. There is info there for just about everybody.
  The split charger interests me, How do you manually switch it over, ? Can you post a clear pic of the switch , pleath, ?thank you.
                                                  Biff
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« Reply #130 on: August 19, 2018, 01:33:45 PM »

 Thanks Scruff,
            I have a 12volt x 12,000lb winch wif 2 x 100ah x 12v batts.  Then my 90 amp x 12 volt charger has a small 75ah batt, I intended to put 50amp andersons from the charger to the 200ah bank but need a way to switch the current from one to the other without all this unscrewing and reassembling battery connectors.. The 200ah bank only acts as an accumulator . The longest the winch has to run is about 4 mins. So what ever kind of switch I use, It will have to be pretty heavy duty, ? I was thinking and planning in terms of 2 x Y x 50amp anderson connector leads which would also mean that the on board 75ah batt in the charger would share the load of the winch as well using no switch.
                                                                           Biff
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« Reply #131 on: August 19, 2018, 10:20:15 PM »

Hi Scruff,
        It,s sounds like I am already on the way to doing that, The 75ah batt is fitted to the charger but the other two 100ah batts are on a separate trolly. The anderson Y tail connector would accomplish that .
     Sometimes I go to great length to complicate things. wackoold.
                                                                       Biff
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« Reply #132 on: August 23, 2018, 11:12:54 AM »

But Scruff,
          It would have to be approx 200mm deep to be low frequency and carry a heavy transformer,
  Here is a very old friend of mine, One of the very first UPS that I ever bought on Eblag.  Some chap called Hewitt, if I recall and that is how it came here with those very dangerous poles on the front. but goodness, it was a great performer and I bought a few from private sellers and converted them to external batts myself with proper foolproof Anderson connectors. This model is double conversion and quite light to carry. It is rated at 780watt but drives drills and grinders without a sweat. It is still alive and well, I keep promising myself that I will change those horrible poles but I might just do that shortly, It has to be at least 20 years old.
The batts are 80 kgs and the UPS would be about 10kgs, (no batts inside) This UPS is easy on power and I would think that the efficiency is pretty good. It has also got a very powerful charger which is a real surprise much better than the APCs.
The problem with big powerful inverters is that they are hard to fodder as you just found out. I used this little UPS for drilling the blockwork ties into the steel on the shed in 2010, so it has been really well tested and like I say it is still alive and going strong.

  The living dead or futter,s corner, This corner has seen more experiments than NASA. (but a lot lot less success)
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« Reply #133 on: August 23, 2018, 03:34:26 PM »

it's a bit off topic but 'kind of' on topic....

I was a UPS for the cctv system at work... I'd like a few hours run time instead of the 20min most UPS systems will give me... (plus all the big ones are 500+ second hand)

any recommendations for an inverter charger to use with batteries instead?


I'm covering for power cuts / being able to turn the power off while doing electrical work etc. not cat burglars :-o
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biff
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« Reply #134 on: August 23, 2018, 06:34:51 PM »

Hi Knighty,
        A chap in town has just fitted cctv to his yard. He bought two 100ah x 12vdeep cycle batts , a small 30amp solar controller and a 50watt pv panel, so he is toally independent of the house current.
 His cameras are all 12v anyhow but I suggested a small 650va Back-UPS approx 400watt. The ac travels better. His yard is 60 x 60 ft and he says it will be OK doing it in 12v.
That particular ups is extremely reliable and easy run,so you would have no trouble getting plenty of hours out of it in a power cut, if connected to the external 200ah x 12v pack,,one very similar to the one above in my last post. even a smaller pv supply would do. say 20watt. Don,t buy a new UPS because they are all mostly on timers now. The one that I have suggested, here has an alarm that can be switched off and it does 220 230 and 240ac output. It is low frequency and quite heavy. The good news is they are relatively cheap and can be bought for about 50, or a lot less. There is a metal cover on them and they are quite old. If you are interested,, I will post a pic of one for you.
                                                                         Biff

« Last Edit: August 23, 2018, 09:10:13 PM by biff » Logged

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