Quote from: CRANKYpants on May 28, 2008, 08:36:17 PM
NO ABSOLUTELY NOT - DRAG WISE.
YOU PLACE THE OPPOSITE SIDE COILS DIRECTLY IN BETWEEN EACH OTHER SO THE COGGING TORQUE IS HALVED.

I.E.

HV      HV      HV      HV      HV
------------------rotor----------------------
  HC      HC      HC      HC

Thane

PS A22 - CONGRATS!!!
I SENT THE MOTOR & COIL YESTERDAY THE TOTAL COST IS $385.65.
HOW WOULD YOU LIKE TO SETTLE THIS?

So you didn't wait for Uli?

hmmm, slowly if that's Ok since I technically only 'approved' the shipping of the coil not the motor at this point in time, I will pay at the greatest rate that I can that does not cause undue hardship.

Quote from: aether22 on May 28, 2008, 09:53:17 PM
So you didn't wait for Uli?

hmmm, slowly if that's Ok since I technically only 'approved' the shipping of the coil not the motor at this point in time, I will pay at the greatest rate that I can that does not cause undue hardship.

OK - I'LL TAKE THE OverUnity PRIZE FOR LEG PULLING @ 14,000 KM!
HAPPY B-DAY AND CONGRATS AGAIN!

Thane

Quote from: CRANKYpants on May 28, 2008, 10:05:52 PM
OK - I'LL TAKE THE OverUnity PRIZE FOR LEG PULLING @ 14,000 KM!
HAPPY B-DAY AND CONGRATS AGAIN!

Thane

I figured you might be joking, but was leaning towards seriousness.

But Justme saw you coming a mile off though.

Quote from: CRANKYpants on May 28, 2008, 08:36:17 PM
NO ABSOLUTELY NOT - DRAG WISE.
YOU PLACE THE OPPOSITE SIDE COILS DIRECTLY IN BETWEEN EACH OTHER SO THE COGGING TORQUE IS HALVED.

I.E.

HV      HV      HV      HV      HV
------------------rotor----------------------
  HC      HC      HC      HC

Thane

PS A22 - CONGRATS!!!
I SENT THE MOTOR & COIL YESTERDAY THE TOTAL COST IS $385.65.
HOW WOULD YOU LIKE TO SETTLE THIS?

TRICKYpants, I think you would find the cogging torque to be entirely canceled not just halved assuming same number and core qualities of the 2 coil types (although if the MMF's of the 2 coil types differ then not quite)

Ok, so after measuring the HC and HV coils voltage and current (1 amp from each HC coil and an OC voltage of only 4v, 125v from the 2 hv coils in series at .06 amps, interestingly this means that the each HV coil is producing about 15 times more voltage and 1/15th the current of the HC coils so if everything holds up the same energy from each, in other words I have proven what I stated about HV coils having the same MMF and energy output)

note: I will however admit that 15 times voltage amplification seems a tad much for microwave transformers though I can't say for sure.

So as long as it can be put to use without reducing the effect (without adding too much resistance, although you can always put things in parallel) then the HV coils are better to be used to power loads than the HC coils.

Anyway that wasn't what I am wanting to write about.
I tried the deceleration test and it's hard to do so many things simultaneously with only 2 hands but I found no substantial difference in deceleration as now well expected (the extra torque being placed on the generator contradicts at least 3 experimental results).

I set my new Tachometer to total rotations and at 1,100rpm switched the motor off as I pressed the button on the tach and in half the tests disconnected the HV coil short.
Because it is easier to do 2 things at the same time than 3 things there was a degree of error but shorted coils would have been about 3-4 more revolutions before the rotor came to a total stop in the 2 tests of each I was happy with. (114 revolutions .vs 118 for example)

But this small difference is not meaningful in part due to often accidentally moving the tachometer off the target momentarily as I disconnected the alligator clip from the HV coil, and in part because of reduction of cogging torque at low RPM's seems good for an extra revolution or 3.

I am considering trying tests where I compare deceleration with the HC coils shorted also.
Actually the best way to improve this test would probably be to add a flywheel.

In the end I would not call this result conclusive but the HV coils really do seem to add far more power to the motor when they are shorted than this tiny and possibly non existent result would indicate.

Reasons to believe it's not at the generator (off the top of my head, and yes I've said all this before):

Vinces test measuring torque which would be reduced if the motors work was being offloaded despite his results showing a torque increase.

Ability to accelerate beyond speed of no stators present but inability to accelerate beyond motors max speed.

Path to motor being critical for acceleration unless a full compliment of stators are used. (why would the effect only work when one is shorted with a good path to the motor and work without a good path only when 8? or so are shorted   Why does one work sometimes and not others?)

Next I am going to try an isolation test (non magnetic shaft) but that may not be today as glue will need to dry.


update:
hmmm, was going to give it another test at the highest speed I could reach which is 2500rpm, when a washer that was taped to the back side of a cup flew off and I am not able to find it.
I will go to the hardware store and get a few spare washers, an induction motor (this one is not dead yet and a fan and shorter run times are helping but I need 2 to do most of my desired tests).

Hopefully will be able to do the isolation test tomorrow and maybe even the surrogate coil and or surrogate motor tests, if they work that will make for a superb 30th!