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Overunity Machines Forum



Fueless Friction Heater Manufacturer Found

Started by Cap-Z-ro, August 01, 2008, 02:59:08 PM

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resonanceman

#50
October 11, 2008, 10:30:14 PM
Quote from: Cap-Z-ro on October 11, 2008, 10:02:10 PM
Those inverter drives are a little hazardous to use Gary...what is 'pulse with modulation' ?

It sounds much less complicated.

Regards...



I am not sure  how  much modification   a PWM  would require to run an AC motor .
 

http://www.overunity.com/index.php?topic=4218.msg86856

gary

helmut

#51
October 12, 2008, 07:54:45 AM
Quote from: Cap-Z-ro on October 11, 2008, 07:53:31 PM
That circuit sounds like exactly what I need Helmut...is there somev place where I can buy the board without buying another motor ?

Not sure what a 'soft start' is Gary...it sounds like it might work also.

The drum spins easily once started, so I have no doubt it will reach speed.

Thanks all.

Regards...



The main purpose on the idea was, to save you some money.
I guess, that the smooth start circuit will (as a single item) cost more
than the Grinder mashine as complete unit.
Perhaps you know one electrician and ask him to dismount the
grinder to get the circuit out.
If you can not find any other help i will dimount my own grinder and
send some pics of it to you.

helmut

Cap-Z-ro

#52
October 12, 2008, 10:06:00 AM

Can't find any descriptors on those links Gary...so I do not know if a pwm would work.

What is the cost of the grinder you refer to Helmut...I don't want to have you go through the trouble to dismantle your grinder.

Something will turn up...there must be some simple way of doing it.

Regards...

resonanceman

#53
October 12, 2008, 10:41:49 AM
Quote from: Cap-Z-ro on October 12, 2008, 10:06:00 AM
Can't find any descriptors on those links Gary...so I do not know if a pwm would work.


Something will turn up...there must be some simple way of doing it.

Regards...



Capt Z

I am assuming  that your motor  is  a normal  AC induction motor .   You  really  didn't way .
You  did say it was 1 Hp.

I  didn't  spend  much time lookiing for  a PWM  because   there would be complications   if  you  wanted to  run an  AC motor  with one.    I am not sure how to  get it done.


If it is an AC motor   check the   power  required .    You  might be able to find something like  a  dimmer  switch  that  is  big enough . 


gary

Cap-Z-ro

#54
October 12, 2008, 11:32:07 AM

The motor is 230/115 volts - 6.5 amp AC Gary.

I would need some type of automatic programmable dimmer device...if there is such a thing.

Regards..

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