Quote from: PaulLowrance on December 28, 2008, 11:34:38 AM
Not sure it will show up in the reply, but that's a beautiful photo of Canada!  I live in Los Angeles, California, USA, and can hardly wait till Feb. 2010 to go to the XXI Olympic Winter Games in Vancouver, British Columbia, Canada!

Regards,
Paul

I_RON IS VERY NICE AND I AM SURE HE WILL BE THERE TO MEET YOU AS HE DOES OFTEN...

T

Thanks for the explanation

dont worry you are a very good and patient prof and it is a pleasure to read your lecture and look at your fantastic videos

As i see in  the last  video, the HV motor acceleration is very strong and  then you desengage the HV coils very soon

If you do not desengage the HV coils and assuming that the rotor will not explode, can i understand (sorry i am a very slow student  ) that the HV motor coils could be fast and strong enough that it would be  possible to decrease the input power on the prime mover  and the system would go on accelerating ? In that case it would be possible to regulate the speed of the system by varying the load on the HC coil ?

I think that 2009 will bring us a very bright gift and I am on the list for the first delivery of the demo concentric bi-coil in Europe 

Laurent

Quote from: CRANKYpants on December 28, 2008, 12:20:29 PM
I_RON IS VERY NICE AND I AM SURE HE WILL BE THERE TO MEET YOU AS HE DOES OFTEN...

T

Yes, surely i_ron often meets people. I'll be certain to have a live internet video stream when we meet. 

PL

QuoteAs i see in  the last  video, the HV motor acceleration is very strong and  then you desengage the HV coils very soon

I DISENGAGE THE HV COIL AS A SAFETY PRECAUTION BECAUSE IT ACCELERATES FASTER THAN I EXPECTED.

QuoteIf you do not desengage the HV coils and assuming that the rotor will not explode, can i understand (sorry i am a very slow student  ) that the HV motor coils could be fast and strong enough that it would be  possible to decrease the input power on the prime mover 

YES I HAVE HAD THE PRIME MOVER AS LOW AS 55 VOLTS - BEFORE ACCELERATION STOPS.

Quoteand the system would go on accelerating ?

FOR THIS TO OCCUR THE HV MOTOR TORQUE WOULD HAVE TO EXCEED THE TORQUE SUPPLIED BY THE INDUCTION MOTOR - THIS IS OUR NEXT GOAL.

QuoteIn that case it would be possible to regulate the speed of the system by varying the load on the HC coil ?

YES VARY THE LOAD ON THE HC COIL OR PLACE LOAD ON THE HV COIL THUS REDUCING THE COIL CURRENT AND INDUCED MAGNETIC FIELD IT WILL BE ABLE TO PRODUCE.

OR IF YOU HAVE MANY HV COILS - SIMPLY SWITCH OUT SOME COILS UNTIL THE DESIRED SPEED IS MAINTAINED.

QuoteI think that 2009 will bring us a very bright gift and I am on the list for the first delivery of the demo concentric bi-coil in Europe 

Laurent

HOPEFULLY THINGS WILL REMAIN "PEACEFUL" LONG ENOUGH TO GET THE JOB DONE.

CHEERS
T

Quote from: CRANKYpants on December 28, 2008, 02:36:10 PM

YES I HAVE HAD THE PRIME MOVER AS LOW AS 55 VOLTS - BEFORE ACCELERATION STOPS.

FOR THIS TO OCCUR THE HV MOTOR TORQUE WOULD HAVE TO EXCEED THE TORQUE SUPPLIED BY THE INDUCTION MOTOR - THIS IS OUR NEXT GOAL.

Previously quote from November 13, 2008:

'AT 55 VOLTS TO THE MOTOR THE TORQUE SUPPLIED BY THE MOTOR IS LESS THAN WHAT IS REQUIRED TO TURN THE ROTOR AT 100 RPM.

FROM 100 RPM TO 1600 RPM THE TORQUE REQUIRED IS SUPPLIED BY THE HV COIL.
OR
THE HV COIL IS ELIMINATING CORE LOSSES AND THE MOTOR IS ACCELERATING THE ROTOR
WHICH IS SIMPLY IDIOTIC TO ANYONE WHO HAS SEEN IT AND DOES NOT USE FLUORIDE TOOTHPASTE.'

I'm glad you mentioned 55 Volts again, because I had wanted to do a backup test previously, to help people understand that 1600 rpm at 55 Volts is amazing.

Please note in the pic that the variac is at 55 Volts and the tachometer is at 395 rpm. The rotor has half the magnets that Thane has on his current rotor and there is no core coil, as I don't have the new concentric bi-coils. So the only load is the rotor. This shows that Thane's setup is doing much more than eliminating the forces between the core and the rotor magnets.

BTW, that was a great picture of I_Ron, he must have had a good hair day.

Regards, Larry