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trying a brake switch


By blueyonder, Section Newbies
Posted on Sat Jan 5th, 2008 at 02:01:18 PM MST
 it works

 ive just been playing on the bench and doing sum fun testing.
 i have menny switches . but the one ive fitted looks the best.
 as its a single throw.  i have better but there  double throw.
  it has four terminals on the back.
  i have soldered the three wires .or the three phase . one to each terminal.
  the spare terminal i have put a bridge across.
  using the same wire.
  i thought the switches were meant for dc but on reading what it said on switch .
 it said 15 amp -250 v then ac.
  but that confused me as i thought it was a 12 volt type switch. dc.
  but on thinking . i am connecting it to ac any way. so that might be ok.
  spinning like mad i flick the switch and it works great.
   very impressed.  but i can still turn rotor very slowly.
  just a gentle turn and it still moves round but not fast.
   ive been reading that it should brake and stay stopped .?
   but how can it stay stopped . only a friction brake can do that surly.
  so far im very happy with the what ive done.
  but as the brake switch is very important i will ask for the OK.
  so dos it look right.   and what i done to wire the switch up is it right.
  its better to look at pic.  so put one on here.
  if it is right . then i will be happy and can move ahead a bit more .
  if in dought  ask . i have been told from when i was a kid  .
  switch needs to brake a six coil -8 mag with six foot prop.

trying a brake switch | 4 comments (4 topical, 0 editorial)

Re: trying a brake switch (3.00 / 0) (#1)
by fungus (info@reenergy.co.uk) on Sat Jan 5th, 2008 at 07:25:55 AM MST
(User Info) http://www.reenergy.co.uk/

It'll always turn slowly as when it is stopped there is no force acting on it to brake it, it'll get up to a slow speed where the power it's putting out at that speed is the same as is being absorbed.

'Two things are infinite: the universe and human stupidity; and I'm not sure about the universe.'-Albert Einstein
Fungus - www.reenergy.co.uk


Re: trying a brake switch (3.00 / 0) (#2)
by blueyonder (windwoodgood at yahoo dot co dot uk) on Sat Jan 5th, 2008 at 03:27:31 PM MST
(User Info)

 hi Angus thanks for the help.
 i understand the power it makes .it then uses that power to make it slow down.
  hhhhmmmmmm electric brakes . cool  no moving parts.
   when it comes to electrics im a bit of a dickhead.
  but i have no problems with my other work i do.
  but i see your a bright lad. and i wish you good luck in the future.
   and hope you do well in life.
  but-i need to ask you again .do you think the switch ive fitted  will be ok.
  and how its wired. that ok is it ?
  i mostly learn by trial and error.  its a long learning curve.
  so sum times i take a short cut and ask for a bit of advice.
   i much pre fare to ask the wise old men who also have much wisdom.
   but as there getting harder and harder to find .  there's  no harm in asking you.
   also while im here i can ask you sumthing else.
 i plan to try make a stator .    
   just like the one used in the twin rotor axal flux  .
  but without the fibre glass resin.
  here's why . its very expensive.
    its not good at getting rid of heat.  
  in other words its thermal conductive feasibilities is not a lot good
  its oil related .
  third world countries . have not much of that stuff around.
   ive read one post on concrete stater.
   so i am gonna try a few things out. making one coil in cement type binder but mixed with glass fibre. only the chopped strand mat.
  once coil is embedded in good mix of sumthing  concrete no stones etc.
  i would connect it to a 12 volt battery to see how it stands up to the heat.
  just trial and error.
   so maybe you can have a new project at school. find a suitable material
  that will help dissipate heat well and not crack  might also help if its water proof.
   to protect the copper coils i was going to dip them in varnish a few times letting them dry between coats.
  so menny things happening now with concrete.  got all types of reinforcing .
  like nylon type stuff and fibres.  
  ive allready made the mould for one coil.  .
  i love experimenting .
  on a full size stater im sure stainless steel wire round the outside edges might help. the nonmagnetic type i mean.
   and again wee Angus cheers the noo laddy.
its a ill wind that dos no good


Re: trying a brake switch (3.00 / 0) (#3)
by fungus (info@reenergy.co.uk) on Sat Jan 5th, 2008 at 03:30:00 PM MST
(User Info) http://www.reenergy.co.uk/

The switch is wired up correctly and should work pretty nicely.
Others have attempted or thought of a resin-less stator and it can work pretty nice too, others would have more information on that.

'Two things are infinite: the universe and human stupidity; and I'm not sure about the universe.'-Albert Einstein
Fungus - www.reenergy.co.uk
[ Parent ]


Re: trying a brake switch (3.00 / 0) (#4)
by blueyonder (windwoodgood at yahoo dot co dot uk) on Tue Jan 8th, 2008 at 05:56:19 PM MST
(User Info)

 thank you fungus for the help in understanding if the switch i got is ok.
its a ill wind that dos no good


trying a brake switch | 4 comments (4 topical, 0 editorial)
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